Takayuki OkuProfessor

■Researcher basic information

Organization

  • College of Science Department of Sciences Physics
  • Graduate School of Science and Engineering(Master's Program) Major in Quantum Bean Science
  • Graduate School of Science and Engineerin(Doctoral Program) Major in Quantum Bean Science
  • Faculty of Basic Natural Science Domain of Physics

Research Areas

  • Energy, Quantum beam science, neutron scattering

Research Keyword

  • neutron optics
  • magnetic neutron lens
  • 3He neutron spin filter
  • polarized neutrons
  • neutron scattering

Degree

  • 1998年06月 博士(工学)(慶應義塾大学)

Career

  • Apr. 2020 - Present, Japan Atomic Energy Agency, Materials and Life Science Division J-Parc Center, Section Leader
  • Apr. 2017 - Present, Graduate School of Sci. and Eng. Ibaraki University, Major in Quantum Beam Science, Professor
  • Oct. 2011 - Present, Japan Atomic Energy Agency, J-PARC Center, Principal researcher
  • Apr. 2008 - Sep. 2011, Japan Atomic Energy Agency, J-PARC Center, Assistant Principal Researcher
  • Apr. 2005 - Mar. 2008, Japan Atomic Energy Agency, Quantum Beam Science Directorate, Assistant Principal Researcher
  • Apr. 2003 - Mar. 2005, Japan Atomic Energy Research Institute, Advanced Science Research Center, Researcher
  • Oct. 2001 - Mar. 2003, RIKEN, Contract researcher
  • Oct. 1998 - Sep. 2001, RIKWN, Postdoctoral researcher
  • Apr. 1997 - Sep. 1998, RIKEN, Contract Researcher

Message from Researchers

  • (Message from Researchers)

    2017年より茨城大学理学部、茨城大学大学院理工学研究科 所属 (クロスアポイント)

■Research activity information

Paper

  • Circular polarization measurement of $\gamma$-rays emitted from $^{32}$S(n,$\gamma$)$^{33}$S reaction with polarized neutrons
    Endo Shunsuke; Fujioka Hiroyuki*; Ide Ikuo*; Iinuma Masataka*; Iwamoto Nobuyuki; Iwamoto Osamu; Kameda Kento*; Kawamura Shiori*; Kimura Atsushi; Kitaguchi Masaaki*; Kobayashi Ryuju*; Nakamura Shoji; Oku Takayuki; Okudaira Takuya*; Okuizumi Mao*; Rovira Leveroni G.; Shima Tatsushi*; Shimizu Hirohiko*; Takada Shusuke*; Takahashi Shingo*; Yoshikawa Hiromoto*; Yoshioka Tamaki*, 共鳴の全角運動量は核データにおいて重要なパラメータの一つであるが、その測定は困難な場合が多く、測定で決定されていないことが多い。本研究では共鳴の全角運動量を偏極中性子照射により発生したガンマ線の円偏光度の測定により決定する手法の確立を目指している。円偏光どの測定を行うためのガンマ線ポラリメータを開発し、J-PARC・MLF・ANNRIに設置し、偏極中性子入射による$^{32}$S(n,$\gamma$)$^{33}$S反応における5.4MeVガンマ線の円偏光度の測定を行った。この5.4MeVのガンマ線は50\%円偏光していることが知られており、このガンマ線を用いてポラリメータの円偏光度への感度であるAnalyzing Powerを決定することが目的である。測定の結果1\%程度の差が確認され、ANNRIにて初めて円偏光度の測定に成功した。
    EPJ Web of Conferences, Jun. 2025, [Reviewed]
  • Experimental studies on spatial resolution of a delay-line current-biased kinetic inductance detector
    The Dang Vu; Hiroaki Shishido; Kazuya Aizawa; Takayuki Oku; Kenichi Oikawa; Masahide Harada; Kenji M. Kojima; Shigeyuki Miyajima; Kazuhiko Soyama; Tomio Koyama; Mutsuo Hidaka; Soh Y. Suzuki; Manobu M. Tanaka; Masahiko Machida; Shuichi Kawamata; Takekazu Ishida
    Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Jun. 2025
  • Development of a compact in-situ 3He neutron spin filter at J-PARC
    S. Takahashi; R. Kiyanagi; T. Okudaira; S. Takada; R. Kobayashi; M. Okuizumi; T. Ino; K. Asai; Y. Tsuchikawa; K. Oikawa; M. Harada; T. Ohhara; J. Suzuki; M. Fujita; Y. Ikeda; K. Kakurai; T. Oku
    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Jun. 2025
  • Transverse asymmetry of individual $\gamma$ rays in the $^{139}$La($\overrightarrow{n},\gamma$)$^{140}$La reaction
    Okuizumi Mao*; Auton C. J.*; Endo Shunsuke; Fujioka Hiroyuki*; Hirota Katsuya*; Ino Takashi*; Ishizaki Kohei*; Kimura Atsushi; Kitaguchi Masaaki*; Koga Jun*; Makise So*; Niinomi Yudai*; Oku Takayuki; Okudaira Takuya*; Sakai Kenji; Shima Tatsushi*; Shimizu Hirohiko*; Tada Hiroki*; Takada Shusuke*; Takahashi Shingo*; Tani Yuika*; Yamamoto Tomoki*; Yoshikawa Hiromoto*; Yoshioka Tamaki*, The observed enhancement of Parity Violation in the vicinity of p-wave compound nuclear resonances for a variety of medium-heavy nuclei can be understood using the sp-mixing model. The sp-mixing model predicts several neutron energy-dependent angular correlations between the spin and momentum of neutron and $\gamma$-ray emitted from (n,$\gamma$) reactions. In this work, the correlation term $\overrightarrow{\sigma_\textrm{n } }\cdot(\overrightarrow{k_\textrm{n } }\times\overrightarrow{k_\gamma})$ in the $^{139}$La($\overrightarrow{n}$,$\gamma$)$^{140}$La$^\ast$ reaction was measured precisely and a significant transverse asymmetry was found in the transition to the excited states of $^{140}$La.
    Physical Review C, Mar. 2025, [Reviewed]
  • Circular polarization measurement for individual gamma rays in capture reactions with intense pulsed neutrons
    Shunsuke Endo; Ryota Abe; Hiroyuki Fujioka; Takashi Ino; Osamu Iwamoto; Nobuyuki Iwamoto; Shiori Kawamura; Atsushi Kimura; Masaaki Kitaguchi; Ryuju Kobayashi; Shoji Nakamura; Takayuki Oku; Takuya Okudaira; Mao Okuizumi; Mohamed Omer; Gerard Rovira; Tatsushi Shima; Hirohiko M. Shimizu; Toshiyuki Shizuma; Yoshitaka Taira; Shusuke Takada; Shingo Takahashi; Hiromoto Yoshikawa; Tamaki Yoshioka; Heishun Zen, Springer Science and Business Media LLC
    The European Physical Journal A, 28 Aug. 2024, [Reviewed]
  • Application of Energy‐Resolving Neutron Imaging to Major‐Component Analyses of Materials Using Four‐Channel Superconducting Detector
    The Dang Vu; Hiroaki Shishido; Kazuya Aizawa; Takayuki Oku; Kenichi Oikawa; Masahide Harada; Kenji M. Kojima; Shigeyuki Miyajima; Kazuhiko Soyama; Tomio Koyama; Mutsuo Hidaka; Soh Y. Suzuki; Manobu M. Tanaka; Masahiko Machida; Shuichi Kawamata; Takekazu Ishida, We proposed a current‐biased kinetic inductance detector (CB‐KID) as a novel superconducting detector to construct a neutron transmission imager. The characteristics of a superconducting neutron detector have been systematically studied to improve a spatial resolution down to 10 in transmission imaging. In this study, we report the application of the energy‐resolving neutron imaging to investigate major components of materials by analyzing neutron transmission spectra from 1 meV to 500 keV. We succeeded in identifying that copper (Cu) and iron (Fe) are major components respectively in commercial nuts and screws as test samples with the aid of Rietveld imaging of transmission spectra (RITS) program in analyzing transmission spectra in longer wavelengths. The Ti screw was also confirmed by comparing the nuclear resonance absorption measurements and simulations in high‐energy regions. We demonstrated that our superconducting neutron detector is applicable to reveal the transmission spectra in the wide range from cold‐neutron energies to higher neutron energies even up to 500 keV. By selecting distinctive energy regions of pulsed neutrons, we succeeded in mapping the distribution of SmSn3 compound using the strong neutron absorption in samarium (Sm) and the selective nuclear‐resonance dips in Sm. By taking advantage of using CB‐KID in conducting neutron imaging, the CB‐KID method is extensively useful for various purposes in material sciences through energy‐selective neutron spectroscopy from 1 meV to 500 keV. © 2024 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC., Wiley
    IEEJ Transactions on Electrical and Electronic Engineering, 20 Jun. 2024
  • Present Status of Spectroscopy of the Hyperfine Structure and Repolarization of Muonic Helium Atoms at J-PARC
    Seiso Fukumura; Patrick Strasser; Mahiro Fushihara; Yu Goto; Takashi Ino; Ryoto Iwai; Sohtaro Kanda; Shiori Kawamura; Masaaki Kitaguchi; Shoichiro Nishimura; Takayuki Oku; Takuya Okudaira; Hirohiko M. Shimizu; Koichiro Shimomura; Hiroki Tada; Hiroyuki A. Torii, The mass mμ− of the negative muon is one of the parameters of the elementary particle Standard Model and it allows us to verify the CPT (charge–parity–time) symmetry theorem by comparing mμ− value with the mass mμ+ of the positive muon. However, the experimental determination precision of mμ− is 3.1ppm, which is an order of magnitude lower than the determination precision of mμ+ at 120ppb. The authors aim to determine mμ− and the magnetic moment μμ− with a precision of O(10ppb) through spectroscopy of the hyperfine structure (HFS) of muonic helium-4 atom (4Heμ−e−) under high magnetic fields. He4μ−e− is an exotic atom where one of the two electrons of the He4 atom is replaced by a negative muon. To achieve the goal, it is necessary to determine the HFS of He4μ−e− with a precision of O(1ppb). This paper describes the determination procedure of the HFS of He4μ−e− in weak magnetic fields reported recently, and the work towards achieving the goal of higher precision measurement., MDPI AG
    Physics, 12 Jun. 2024
  • Neutron transmission imaging system with a superconducting kinetic inductance detector
    The Dang Vu; Hiroaki Shishido; Kazuya Aizawa; Takayuki Oku; Kenichi Oikawa; Masahide Harada; Kenji M. Kojima; Shigeyuki Miyajima; Kazuhiko Soyama; Tomio Koyama; Mutsuo Hidaka; Soh Y. Suzuki; Manobu M. Tanaka; Masahiko Machida; Shuichi Kawamata; Takekazu Ishida, Abstract

    We optimized the design and operating conditions of our superconducting neutron detector to improve spatial resolution. We obtained the best spatial resolution of 10 μm when a Gd Siemens star pattern was mounted in close contact with the detector. Although there is a trade-off between a spatial resolution and an easiness of replacing samples, we built our superconducting neutron imaging system for measuring in both the room-temperature samples with a proper collimation ratio L/D for achieving a reasonable spatial resolution and a cryogenic temperature with the best spatial resolution for certain purposes. In this study, we obtained neutron transmission images of various samples when they were cooled down with the superconducting neutron detector. We compared the effect of a different sample-detector distance on a spatial resolution when the samples were placed either at cryogenic temperature or at room temperature. We also confirmed that our CB-KID sensor was able to observe the neutron transmission coefficient over wider energies of pulsed neutrons. We found the appearance of clear Bragg dips by the measurements of natural FeS2 single crystals and succeeded in mapping the distribution of differently-oriented crystals by choosing several Bragg dips of the FeS2 crystals to compose the transmission images., IOP Publishing
    Journal of Physics: Conference Series, 01 Jun. 2024
  • Interpenetration of rubber and silane coupling agent on an inorganic substrate revealed by spin-contrast-variation neutron reflectivity
    Kumada Takayuki; Iwahara Daisuke*; Nishitsuji Shotaro*; Akutsu Kazuhiro*; Miura Daisuke; Motokawa Ryuhei; Sugita Tsuyoshi; Torikai Naoya*; Amino Naoya*; Oku Takayuki; Takenaka Mikihito*, We elucidated the entanglement of polybutadiene and silane coupling agent (SCA) molecules bound to Si substrates using spin-contrast-variation (SCV) neutron reflectivity (NR). In an annealed integral blend film of polybutadiene and SCA, a SCA layer generated on the Si substrate was composed of 70 vol. percent SCA molecules extended perpendicularly from the silicon substrate and entangled with 30 vol. percent polybutadiene molecules. By contrast, in an SCA-precoated polybutadiene film, the SCA-precoated layer is composed of densely packed SCA molecules forming crystal-like structure, and thus did not become entangled with the postcoated polybutadiene molecules. This poor entanglement resulted in poor binding between polybutadiene and Si substrate.
    Journal of Physical Chemistry C, May 2024, [Reviewed]
  • Recent status of the cryogenic sample environment at the MLF, J-PARC
    Ishikado Motoyuki*; Takahashi Ryuta*; Yamauchi Yasuhiro*; Nakamura Masatoshi*; Ishimaru Sora*; Yamauchi Sara*; Kawamura Seiko; Kira Hiroshi*; Sakaguchi Yoshifumi*; Watanabe Masao; Oku Takayuki, Recent status of cryogenic sample environment equipment at the Materials and Life Science Experimental Facility (MLF) of the Japan Proton Accelerator Research Complex (J-PARC) has been reported. We have reviewed the specifications and performance of cryogenic sample environment equipment and a newly installed Gifford-McMahon (GM) cryofurnace, which are mainly managed by the Cryogenic and Magnet group in the sample environment team at the MLF. Moreover, the recent maintenance and update of each piece of equipment, the improved temperature-control function, and the expansion of the usable beamline of the cryogenic sample environment equipment are described.
    JPS Conference Proceedings (Internet), May 2024, [Reviewed]
  • New muonic He atom HFS measurements at J-PARC MUSE
    Yu Goto; Seiso Fukumura; Patrick Strasser; Takashi Ino; Ryoto Iwai; Sohtaro Kanda; Shiori Kawamura; Masaaki Kitaguchi; Shoichiro Nishimura; Takayuki Oku; Takuya Okudaira; Hirohiko M. Shimizu; Koichiro Shimomura; Hiroki Tada; Hiroyuki A. Torii, Springer Science and Business Media LLC
    Interactions, 26 Apr. 2024
  • High sensitivity of a future search for effects of $P$-odd/$T$-odd interactions on the 0.75 eV $p$-wave resonance in $\overrightarrow{n}$+$^{139}\overrightarrow{\textrm{La } }$ forward transmission determined using a pulsed neutron beam
    Nakabe Rintaro*; Auton C. J.*; Endo Shunsuke; Fujioka Hiroyuki*; Gudkov V.*; Hirota Katsuya*; Ide Ikuo*; Ino Takashi*; Ishikado Motoyuki*; Kambara Wataru*; Kawamura Shihori; Kimura Atsushi; Kitaguchi Masaaki*; Kobayashi Ryuju*; Okamura Takahiro*; Oku Takayuki; Okudaira Takuya*; Okuizumi Mao*; Otero Munoz J. G.*; Parker J. D.*; Sakai Kenji; Shima Tatsushi*; Shimizu Hirohiko*; Shinohara Takenao; Snow W. M.*; Takada Shusuke*; Takahashi Ryuta*; Takahashi Shingo; Tsuchikawa Yusuke; Yoshioka Tamaki*, Neutron transmission experiments can offer a new type of highly sensitive search for time-reversal invariance violating (TRIV) effects in nucleon-nucleon interactions via the same enhancement mechanism observed for large parity violating (PV) effects in neutron-induced compound nuclear processes. In these compound processes, the TRIV cross-section is given as the product of the PV cross-section, a spin-factor $\kappa$, and a ratio of TRIV and PV matrix elements. We determined $\kappa$ to be 0.59 $\pm$ 0.05 for $^{139}$La+n using both (n, $\gamma$) spectroscopy and ($\overrightarrow{n}$+$^{139}\overrightarrow{\textrm{La } }$) transmission. This result quantifies for the first time the high sensitivity of the $^{139}$La 0.75 eV $p$-wave resonance in a future search for $P$-odd/$T$-odd interactions in ($\overrightarrow{n}$+$^{139}\overrightarrow{\textrm{La } }$) forward transmission.
    Physical Review C, Apr. 2024, [Reviewed]
  • Spin dependence in the $p$-wave resonance of $^{139}$\overrightarrow{\textrm{La } }+\overrightarrow{n}
    Okudaira Takuya*; Nakabe Rintaro*; Auton C. J.*; Endo Shunsuke; Fujioka Hiroyuki*; Gudkov V.*; Ide Ikuo*; Ino Takashi*; Ishikado Motoyuki*; Kambara Wataru*; Kawamura Shihori; Kobayashi Ryuju*; Kitaguchi Masaaki*; Okamura Takahiro*; Oku Takayuki; Otero Munoz J. G.*; Parker J. D.*; Sakai Kenji; Shima Tatsushi*; Shimizu Hirohiko*; Shinohara Takenao; Snow W. M.*; Takada Shusuke*; Tsuchikawa Yusuke; Takahashi Ryuta*; Takahashi Shingo; Yoshikawa Hiromoto*; Yoshioka Tamaki*, We measured the spin dependence in a neutron-induced p-wave resonance by using a polarized epithermal neutron beam and a polarized nuclear target. Our study focuses on the 0.75 eV $p$-wave resonance state of $^{139}$La+n, where largely enhanced parity violation has been observed. We determined the partial neutron width of the $p$-wave resonance by measuring the spin dependence of the neutron absorption cross section between polarized $^{139}$La and polarized neutrons. Our findings serve as a foundation for the quantitative study of the enhancement effect of the discrete symmetry violations caused by mixing between partial amplitudes in the compound nuclei.
    Physical Review C, Apr. 2024, [Reviewed]
  • Development of instruments for imaging of local magnetic structure by magnetic neutron holography
    Tomoya Kanno; Kenji Ohoyama; Hajime Nakada; Yuto Fukui; Kota Yamakawa; Shota Hoshi; Motoki Takano; Yodai Kobayashi; Yuka Tomimatsu; Shingo Takahashi; Takayuki Oku; Takuya Okudaira; Ryuju Kobayashi; Shusuke Takada; Masahide Harada; Kenichi Oikawa; Yasuhiro Inamura; Toetsu Shishido; Keisuke Sato; Kouichi Hayashi, Elsevier BV
    Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Apr. 2024
  • Study of Magnetic Environment for Neutron Spin Filters Using Polarized 3He at J-PARC and JRR-3
    Shusuke Takada; Masaki Fujita; Yu Goto; Takashi Honda; Kazutaka Ikeda; Yoichi Ikeda; Takashi Ino; Koji Kaneko; Ryuju Kobayashi; Manabu Okawara; Takayuki Oku; Takuya Okudaira; Toshiya Otomo; Shingo Takahashi, Journal of the Physical Society of Japan
    Proceedings of 11th International Workshop on Sample Environment at Scattering Facilities (ISSE Workshop Nasu 2022), 01 Mar. 2024
  • Contrast dependence of scattering profiles for poly(ethylene glycol) in water; Investigation by small-angle neutron scattering with $^{3}$He spin filter and small-angle X-ray scattering
    Ryoki Akiyuki*; Watanabe Fumi*; Okudaira Takuya*; Takahashi Shingo*; Oku Takayuki; Hiroi Kosuke; Motokawa Ryuhei; Nakamura Yo*, Small-angle neutron scattering (SANS) and small-angle X-ray scattering (SAXS) measurements were performed for deuterated and non-deuterated poly(ethylene glycol) (d-PEG and h-PEG, respectively) in D$_{2}$O and a D$_{2}$O/H$_{2}$O mixed solvent (Mix) to compere the scattering profiles. To determine the coherent scattering intensity of SANS, a $^{3}$He spin filter was utilized. The scattering profiles determined by SANS measurements were analyzed in terms of the wormlike chain model with touched beads along the contour of the chain. However, the SAXS profiles were not explained by the same model with uniform beads but with beads each consisting of a core and a shell having different electron densities. To explore the chain thickness determined form the SANS profile, scattering intensities for different combinations of d-PEG/D$_{2}$O, d-PEG/Mix, h-PEG/D$_{2}$O, and h-PEG/Mix were also examined.
    Journal of Chemical Physics, Mar. 2024, [Reviewed]
  • Neutron transmission CB-KID imager using samples placed at room temperature
    Ishida Takekazu*; Vu TheDang*; Shishido Hiroaki*; Aizawa Kazuya; Oku Takayuki; Oikawa Kenichi; Harada Masahide; Kojima Kenji M*; Miyajima Shigeyuki*; Koyama Tomio*; Soyama Kazuhiko; Hidaka Mutsuo*; Suzuki Soh Y.*; Tanaka Manobu M*; Machida Masahiko; Kawamata Shuichi*, We built a new cryostat to apply a current-biased kinetic inductance detector (CB-KID) for conducting neutron transmission imaging of room temperature samples under pulsed neutrons. A Wood's metal alloy of melting temperature 75.2$^{\circ}$C was placed at room temperature to inspect the measurement system at J-PARC. Since one of the four phases of Wood's metal is a fine Cd-rich needle phase (width $\sim$ 25 $\mu$m and length $\sim$ 5 mm), it is suitable for observing fine mosaic structure selectively by neutron imaging. The spatial resolution of the CB-KID imager was estimated as $\sim$ 10 $\mu$m by using a Gd Siemens-star pattern. The CB-KID system is useful to conduct transmission imaging for various materials rather easily at room temperature.
    Journal of Low Temperature Physics, Feb. 2024, [Reviewed]
  • Polarized Neutrons Observed Nanometer-Thick Crystalline Ice Plates in Frozen Glucose Solution.
    Takayuki Kumada; Hiroshi Nakagawa; Daisuke Miura; Yurina Sekine; Ryuhei Motokawa; Kosuke Hiroi; Yasuhiro Inamura; Takayuki Oku; Kazuki Ohishi; Toshiaki Morikawa; Yukihiko Kawamura; Kiyoshi Kawai, Spin-contrast-variation (SCV) small-angle neutron scattering (SANS) is a technique to determine the nanostructure of composite materials from the scattering of polarized neutrons that changes with proton polarization of samples. The SCV-SANS enabled us to determine structure of nanoice crystals that were generated in rapidly frozen sugar solutions by separating the overlapped signals from the nanoice crystals and frozen amorphous solutions. In the frozen glucose solution, we found that the nanoice crystals formed a planar structure with a radius larger than several tens of nanometers and a thickness of 2.5 ± 0.5 nm, which was close to the critical nucleation size of ice crystals in supercooled water. This result suggests that the glucose molecules were preferentially bound to a specific face of nanoice crystals and then blocked the crystal growth perpendicular to that face.
    The journal of physical chemistry letters, 21 Aug. 2023
  • Orientation mapping of YbSn$_{3}$ single crystals based on Bragg-dip analysis using a delay-line superconducting sensor
    Shishido Hiroaki*; Vu TheDang*; Aizawa Kazuya; Kojima Kenji M*; Koyama Tomio*; Oikawa Kenichi; Harada Masahide; Oku Takayuki; Soyama Kazuhiko; Miyajima Shigeyuki*; Hidaka Mutsuo*; Suzuki Soh Y.*; Tanaka Manobu M*; Kawamata Shuichi*; Ishida Takekazu*, Recent progress in high-power pulsed neutron sources has stimulated the development of the Bragg dip and Bragg edge analysis methods using a two-dimensional neutron detector with high temporal resolution to resolve the neutron energy by the time-of-flight method. A delay-line current-biased kinetic inductance detector (CB-KID) is a two-dimensional superconducting sensor with a high temporal resolution and multi-hit capability. Here, it is demonstrated that a delay-line CB-KID with a $^{10}$B neutron conversion layer can be applied to high-spatial-resolution neutron transmission imaging and spectroscopy up to 100 eV. Dip structures are observed in the transmission spectra of YbSn$_{3}$ single crystals, induced by Bragg diffraction and nuclear resonance absorption. The orientation mapping of YbSn$_{3}$ crystals is successfully drawn based on the analysis of observed Bragg dip positions in the transmission spectra.
    Journal of Applied Crystallography, Aug. 2023, [Reviewed]
  • Crystalline Orientation of CaF2 window determined by Neutron Transmission Imaging using a Delay Line Current-Biased Kinetic-Inductance Detector
    Hiroaki Shishido; The Dang Vu; Kazuya Aizawa; Kenji M. Kojima; Tomio Koyama; Kenichi Oikawa; Masahide Harada; Takayuki Oku; Kazuhiko Soyama; Shigeyuki Miyajima; Mutsuo Hidaka; Soh Y. Suzuki; Manobu M. Tanaka; Shuichi Kawamata; Takekazu Ishida, Abstract

    The combination of a high speed two-dimensional neutron detector and an intensive pulsed neutron source provides not only neutron transmission imaging but also information on crystal structures, orientations and constituent elements by analyzing neutron transmission spectra. The delay-line current-biased kinetic-inductance detector (CB-KID) is a two-dimensional superconducting neutron detector with high spatial and temporal resolutions, and multi-hit tolerance. We demonstrated that the delay-line CB-KID with a 10B neutron conversion layer can be applied for neutron transmission measurements up to 100 keV. We observed two-different dip structures in the transmission spectra in a CaF2 single crystal, i.e., one is from the Bragg diffraction and the other is from nuclear resonance absorption. We consider that some duplicated structures in resonance absorption dips are originating from a double-bunch structure of proton pulses for producing pulsed neutrons in the accelerator., IOP Publishing
    Journal of Physics: Conference Series, 01 Jul. 2023
  • Superconducting neutron transmission imaging for investigating a sequential change in phase separations of low-melting Wood’s metal
    The Dang Vu; Hiroaki Shishido; Kazuya Aizawa; Takayuki Oku; Kenichi Oikawa; Masahide Harada; Kenji M. Kojima; Shigeyuki Miyajima; Kazuhiko Soyama; Tomio Koyama; Mutsuo Hidaka; Soh Y. Suzuki; Manobu M. Tanaka; Masahiko Machida; Shuichi Kawamata; Takekazu Ishida, Abstract

    We built a new cryostat system for a current-biased kinetic inductance detector (CB-KID) to be able to place a sample at room temperature for conducting the neutron transmission imaging experiments with pulsed neutrons. A Wood’s metal alloy sample (Bi 50wt.%, Pb 25wt.%, Sn 12.5wt.%, Cd 12.5wt.%) of melting temperature 75.2°C was used to check a practical test by observing fine microstructures under beam power of 812 kW at beamline BL10 of J-PARC (MLF). The Wood’s metal is composed of four phases, of which one is a Cd-rich needle-like phase of an average width of 25 µm and length of 5 mm. Since Cd is a strong neutron absorber, it is suitable for observing the fine mosaic structure contrastingly in neutron transmission imaging. After neutron-transmission imaging with the Wood’s metal in the initial state, we subsequently melted the Wood’s metal sample and solidified it again by slow cooling during the same beam time. We were successful in observing an impressive change in morphology of the phases by neutron-transmission imaging. Room-temperature sample imaging is very convenient for possible users, and is expected to be very useful for applying our CB-KID system to versatile different materials of interests., IOP Publishing
    Journal of Physics: Conference Series, 01 Jul. 2023
  • The first polarized neutron diffraction experiment at the time-of-flight single crystal neutron diffractometer SENJU at J-PARC
    S Takahashi; R Kiyanagi; R Kobayashi; T Okudaira; T Ino; J Suzuki; K Kakurai; T Oku, Abstract

    The 3He spin filter has been developed to use pulsed neutrons effectively at J-PARC MLF. In this study, the 3He spin filter was installed in the single crystal neutron diffractometer (BL18 SENJU) at J-PARC MLF as a polarizer of the incident beam, and Half-polarized neutron diffraction experiments were performed. The 3He spin filter was used the ”drop-in cell” method with cells that had a relaxation time of 150 hours in the past experiments. The sample was a single crystal of Heusler crystal Cu2MnAl and the sample magnetic field was 0.3 T. The intensities of (111) Bragg peaks of Cu2MnAl were drastically changed with the polarity of the incident neutron beam, and the flipping ratio of 21.7 at 3.6 Å was observed. The experimental setup and the performance of the 3He spin filter used in this experiment are described in detail in this paper., IOP Publishing
    Journal of Physics: Conference Series, 01 Apr. 2023
  • Status of the new muonic helium atom HFS measurements at J-PARC MUSE
    P Strasser; S Fukumura; T Ino; R Iwai; S Kanda; S Kawamura; M Kitaguchi; S Nishimura; T Oku; T Okudaira; S Seo; H M Shimizu; K Shimizu; K Shimomura; H Tada; T Tanaka; H A Torii; H Yamauchi; H Yasuda, Abstract
    Measurements of the muonic helium atom hyperfine structure (HFS) are a sensitive tool to test the theory of three-body atomic systems and bound-state quantum electrodynamics (QED) and to determine fundamental constants of the negative muon magnetic moment and mass. The world’s most intense pulsed negative muon beam at J-PARC MUSE brings an opportunity to improve previous measurements and test further CPT invariance by comparing the magnetic moments and masses of positive and negative muons. Test measurements at D-line are now in progress utilizing MuSEUM apparatus at zero field. The first results already have better accuracy than previous measurements in the 1980s. Also, the investigation of a new experimental approach to improve HFS measurements by repolarizing muonic helium atoms using a spin-exchange optical pumping (SEOP) technique was started. If successful, this would drastically improve the measurement accuracy., {IOP} Publishing
    Journal of Physics: Conference Series, 01 Mar. 2023
  • Optically Polarized Alkali Metal Cell for Muonic Helium Measurements
    Takashi Ino; Seiso Fukumura; Patrick Strasser; Masaki Fujita; Yoichi Ikeda; Sohtaro Kanda; Masaaki Kitaguchi; Shoichiro Nishimura; Takayuki Oku; Takuya Okudaira; Hirohiko M. Shimizu; Koichiro Shimomura, Journal of the Physical Society of Japan
    Proceedings of the 24th International Spin Symposium (SPIN2021), 26 Dec. 2022
  • Measurement of the transverse asymmetry of $\gamma$ rays in the $^{117}$Sn($n,\gamma$)$^{118}$Sn reaction
    Endo Shunsuke; Okudaira Takuya*; Abe Ryota*; Fujioka Hiroyuki*; Hirota Katsuya*; Kimura Atsushi; Kitaguchi Masaaki*; Oku Takayuki; Sakai Kenji; Shima Tatsushi*; Shimizu Hirohiko*; Takada Shusuke*; Takahashi Shingo*; Yamamoto Tomoki*; Yoshikawa Hiromoto*; Yoshioka Tamaki*
    Physical Review C, Dec. 2022, [Reviewed]
  • Structure analysis of a buried interface between organic and porous inorganic layers using spin-contrast-variation neutron reflectivity
    Kumada Takayuki; Miura Daisuke*; Akutsu Kazuhiro*; Oishi Kazuki*; Morikawa Toshiaki*; Kawamura Yukihiko*; Suzuki Junichi*; Oku Takayuki; Torikai Naoya*; Niizeki Tomotake*, Spin-contrast-variation neutron reflectivity obtains multiple reflectivity curves from a single sample and a single beam source. We used the strong point of the technique to reveal that, although methylated-perhydropolysilazane-derived silica layer has a higher porosity near the interface with acrylic urethane resin, the resin did not permeate the pore network., International Union of Crystallography (IUCr)
    Journal of Applied Crystallography, Oct. 2022, [Reviewed]
  • Neutron Imaging toward Epithermal Regime using a Delay Line Current-Biased Kinetic-Inductance Detector
    Hiroaki Shishido; The Dang Vu; Kazuya Aizawa; Kenji M. Kojima; Tomio Koyama; Kenichi Oikawa; Masahide Harada; Takayuki Oku; Kazuhiko Soyama; Shigeyuki Miyajima; Mutsuo Hidaka; Soh Y. Suzuki; Manobu M. Tanaka; Shuichi Kawamata; Takekazu Ishida, Abstract

    Wide energy range neutron imaging and spectroscopy in a single experiment without changing the setup is available by a combination of a high-power pulsed neutron source and fast operating neutron detector. The delay-line current-biased kinetic-inductance detector (CB-KID) is a two-dimensional superconducting detector with high spatial and temporal resolutions, and multi-hit tolerance. We demonstrate that the delay-line CB-KID with 10B neutron conversion layer is applicable for neutron imaging and spectroscopy up to the neutron energy of 100 eV. High spatial neutron transmission image for a Sm-Sn mixed metal is successfully constructed below 0.3 eV. Concomitantly, we examine the neutron transmission up to 100 eV and identify observed resonance dips by Sm nuclei., IOP Publishing
    Journal of Physics: Conference Series, 01 Aug. 2022
  • Narrow-area Bragg-edge transmission of iron samples using superconducting neutron sensor
    The Dang Vu; Hiroaki Shishido; Kazuya Aizawa; Takayuki Oku; Kenichi Oikawa; Masahide Harada; Kenji M. Kojima; Shigeyuki Miyajima; Kazuhiko Soyama; Tomio Koyama; Mutsuo Hidaka; Soh Y. Suzuki; Manobu M. Tanaka; Alex Malins; Masahiko Machida; Takekazu Ishida, Abstract

    This study investigates a current-biased kinetic inductance detector (CB-KID) performance by investigating Bragg-edge spectra from the restricted-area neuron transmission of materials. Iron samples with a size of 5 × 5 ×2 mm3 were used as typical test materials. The ergodic theorem was used to obtain a visible transmission spectrum so that a long-time averaging of a transmission spectrum can alternatively be evaluated using a space average of independently selected area spectra with the same ensemble size. The most visible edges were observed with a limited area sample of 0.43 mm2 using a minimum time bin of 25 μs in a time-of-flight (ToF) spectrum or a wavelength resolution of 0.0007 nm of each neutron pulse at beamline BL10 of the Japan Proton Accelerator Research Complex (J-PARC) center. The main Bragg edge of iron as a sum of random 100 ensembles (with an ensemble size of 3.1 × 2.3 μm2) thus obtained has a distinctive signal-to-noise ratio and can be fitted well with the Rietveld Imaging of Transmission Spectra (RITS) program with Miller indices. We consider that our CB-KID system is, in principle, able to analyze the Bragg edge of samples as small as 3.1 × 2.3 μm2., IOP Publishing
    Journal of Physics: Conference Series, 01 Aug. 2022
  • Proposal for new measurements of muonic helium hyperfine structure at J-PARC
    Seiso Fukumura; Patrick Strasser; Takashi Ino; Takayuki Oku; Takuya Okudaira; Sohtaro Kanda; Masaaki Kitaguchi; Koichiro Shimomura; Hirohiko M. Shimizu; Hiroyuki A. Torii; Shoichiro Nishimura, The measurement of the ground state hyperfine structure of muonic helium has the potential to improve the precision of the mass of the negative muon by a factor of 50 or more. The mass of the negative muon is very important because it enables us to test the CPT theorem by comparison with positive muon mass. We aim to measure the hyperfine structure of muonic helium with a precision 1000 times higher than previous experiments [1,2] using the highintensity muon beam at J-PARC and have already obtained results better than the current precision in zero-field measurements in a test experiment in March 2021. To further improve the precision, we plan to measure in a high magnetic field and incorporate a technique that can produce highly polarized muonic helium atom [3]. In this paper, we will report on these developments., EDP Sciences
    EPJ Web of Conferences, 27 Apr. 2022
  • Erratum: Transverse asymmetry of γ rays from neutron-induced compound states of 140La (Physical Review C (2020) 101 (064624) DOI: 10.1103/PhysRevC.101.064624)
    T. Yamamoto; T. Okudaira; S. Endo; H. Fujioka; K. Hirota; T. Ino; K. Ishizaki; A. Kimura; M. Kitaguchi; J. Koga; S. Makise; Y. Niinomi; T. Oku; K. Sakai; T. Shima; H. M. Shimizu; S. Takada; Y. Tani; H. Yoshikawa; T. Yoshioka
    Physical Review C, Mar. 2022
  • High Spatial Resolution Neutron Transmission Imaging Using a Superconducting Two-Dimensional Detector
    Hiroaki Shishido; Kazuma Nishimura; The Dang Vu; Kazuya Aizawa; Kenji M. Kojima; Tomio Koyama; Kenichi Oikawa; Masahide Harada; Takayuki Oku; Kazuhiko Soyama; Shigeyuki Miyajima; Mutsuo Hidaka; Soh Y. Suzuki; Manobu M. Tanaka; Shuichi Kawamata; Takekazu Ishida, Institute of Electrical and Electronics Engineers (IEEE)
    IEEE Transactions on Applied Superconductivity, Dec. 2021
  • Practical tests of neutron transmission imaging with a superconducting kinetic-inductance sensor
    The Dang Vu; Hiroaki Shishido; Kazuya Aizawa; Kenji M. Kojima; Tomio Koyama; Kenichi Oikawa; Masahide Harada; Takayuki Oku; Kazuhiko Soyama; Shigeyuki Miyajima; Mutsuo Hidaka; Soh Y. Suzuki; Manobu M. Tanaka; Alex Malins; Masahiko Machida; Shuichi Kawamata; Takekazu Ishida, Elsevier BV
    Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Aug. 2021
  • Neutron Imaging for Intermetallic Alloy using a Delay Line Current-Biased Kinetic-Inductance Detector
    Hiroaki Shishido; The Dang Vu; Kazuya Aizawa; Kenji M. Kojima; Tomio Koyama; Kenichi Oikawa; Masahide Harada; Takayuki Oku; Kazuhiko Soyama; Shigeyuki Miyajima; Mutsuo Hidaka; Soh Y. Suzuki; Manobu M. Tanaka; Shuichi Kawamata; Takekazu Ishida, Abstract

    The current-biased kinetic-inductance detector (CB-KID) is a solid-state superconducting neutron detector with high spatial and temporal resolutions, and multi-hit tolerance. We demonstrate high temperature operation of CB-KID at 7.9 K with the delay-line method. High temperature operation reduces imaging pixel size by suppressing signal propagation velocity. High spatial neutron transmission image for a mixed metal alloy consisting of heavy elements Sm and Sn is successfully constructed. We also examine the capability of element discrimination imaging based on the resonance dip analysis., IOP Publishing
    Journal of Physics: Conference Series, 01 Jul. 2021
  • Polarization analysis for small-angle neutron scattering with a 3He spin filter at a pulsed neutron source
    Takuya Okudaira; Yuki Ueda; Kosuke Hiroi; Ryuhei Motokawa; Yasuhiro Inamura; Shin-ichi Takata; Takayuki Oku; Jun-ichi Suzuki; Shingo Takahashi; Hitoshi Endo; Hiroki Iwase, Neutron polarization analysis (NPA) for small-angle neutron scattering (SANS) experiments using a pulsed neutron source was successfully achieved by applying a 3He spin filter as a spin analyzer for the neutrons scattered from the sample. The cell of the 3He spin filter gives a weak small-angle scattering intensity (background) and covers a sufficient solid angle for performing SANS experiments. The relaxation time of the 3He polarization is sufficient for continuous use for approximately 2 days, thus reaching the typical duration required for a complete set of SANS experiments. Although accurate evaluation of the incoherent neutron scattering, which is predominantly attributable to the extremely large incoherent scattering cross section of hydrogen atoms in samples, is difficult using calculations based on the sample elemental composition, the developed NPA approach with consideration of the influence of multiple neutron scattering enabled reliable decomposition of the SANS intensity distribution into the coherent and incoherent scattering components. To date, NPA has not been well established as a standard technique for SANS experiments at pulsed neutron sources such as the Japan Proton Accelerator Research Complex (J-PARC) and the US Spallation Neutron Source. It is anticipated that this work will contribute significantly to the accurate determination of the coherent neutron scattering component for scatterers in various types of organic sample systems in SANS experiments at J-PARC, particularly for systems involving competition between the coherent and incoherent scattering intensity., International Union of Crystallography (IUCr)
    Journal of Applied Crystallography, 01 Apr. 2021
  • Study of Neutron–Nuclear Spin Correlation Term with a Polarized Xe Target
    Kenji Sakai; Takayuki Oku; Takuya Okudaira; Tetsuya Kai; Masahide Harada; Kosuke Hiroi; Hirotoshi Hayashida; Kazuhisa Kakurai; Hirohiko M. Shimizu; Katsuya Hirota; Tomoki Yamamoto; Takashi Ino, Journal of the Physical Society of Japan
    Proceedings of the 3rd J-PARC Symposium (J-PARC2019), 26 Mar. 2021
  • Homogeneity of neutron transmission imaging over a large sensitive area with a four-channel superconducting detector
    THE DANG VU; Hiroaki Shishido; Kenji M Kojima; Tomio Koyama; Kenichi Oikawa; Masahide Harada; Shigeyuki Miyajima; Takayuki Oku; Kazuhiko Soyama; Kazuya Aizawa; Mutsuo Hidaka; Soh Y Suzuki; Manobu M. Tanaka; Alex Malins; Masahiko Machida; Takekazu Ishida, IOP Publishing
    Superconductor Science and Technology, 19 Oct. 2020
  • Development of an in Situ 3He NSF Using SEOP Technique with an Evaluation System for the Pulsed Neutron Source
    T. Okudaira; T. Oku; K. Sakai; T. Ino; H. Hayashida; K. Hiroi; T. Shinohara; K. Kakurai; K. Aizawa, Pleiades Publishing Ltd
    Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques, Oct. 2020
  • Development and application of a 3He Neutron Spin Filter at J-PARC
    T. Okudaira; T. Oku; T. Ino; H. Hayashida; H. Kira; K. Sakai; K. Hiroi; S. Takahashi; K. Aizawa; H. Endo; S. Endo; M. Hino; K. Hirota; T. Honda; K. Ikeda; K. Kakurai; W. Kambara; M. Kitaguchi; T. Oda; H. Ohshita; T. Otomo; H.M. Shimizu; T. Shinohara; J. Suzuki; T. Yamamoto, Elsevier BV
    Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Oct. 2020
  • Energy-Resolved Neutron Imaging using a Delay Line Current-Biased Kinetic-Inductance Detector
    Hiroaki Shishido; Kazuma Nishimura; The Dang Vu; Kenji M. Kojima; Tomio Koyama; Kenichi Oikawa; Masahide Harada; Shigeyuki Miyajima; Mutsuo Hidaka; Takayuki Oku; Kazuhiko Soyama; Kazuya Aizawa; Soh Y. Suzuki; Takekazu Ishida, IOP Publishing
    Journal of Physics: Conference Series, Jul. 2020
  • Kinetic inductance neutron detector operated at near critical temperature
    The Dang Vu; Kazuma Nishimura; Hiroaki Shishido; Masahide Harada; Kenichi Oikawa; Shigeyuki Miyajima; Mutsuo Hidaka; Takayuki Oku; Kazuhiko Soyama; Kazuya Aizawa; Kenji M Kojima; Tomio Koyama; Alex Malins; Masahiko Machida; Takekazu Ishida, IOP Publishing
    Journal of Physics: Conference Series, Jul. 2020
  • Transverse asymmetry of gamma rays from neutron -induced compound states of La-140
    T. Yamamoto; T. Okudaira; S. Endo; H. Fujioka; K. Hirota; T. Ino; K. Ishizaki; A. Kimura; M. Kitaguchi; J. Koga; S. Makise; Y. Niinomi; T. Oku; K. Sakai; T. Shima; H. M. Shimizu; S. Takada; Y. Tani; H. Yoshikawa; T. Yoshioka
    PHYSICAL REVIEW C, Jun. 2020
  • Experimental test of 3He neutron-spin filter in MIEZE spectrometer
    H. Hayashida; M. Hino; H. Endo; T. Oku; T. Okudaira; K. Sakai; T. Oda
    Journal of Physics: Conference Series, 11 Dec. 2019, [Reviewed]
  • Measurement of the angular distribution of γ-rays after neutron capture by 139La for a T-violation search
    Takuya Okudaira; Hirohiko M. Shimizu; Masaaki Kitaguchi; Katsuya Hirota; Christopher C. Haddock; Ikuya Ito; Tomoki Yamamoto; Shunsuke Endo; Kohei Ishizaki; Takumi Sato; Shusuke Takada; Jun Koga; Tamaki Yoshioka; Takashi Ino; Kouichiro Asahi; Takamasa Momose; Takahiro Iwata; Takayuki Oku; Kenji Sakai; Atsushi Kimura; Taro Nakao; Masanori Hino; Tatsushi Shima; Yutaka Yamagata, EDP Sciences
    EPJ Web of Conferences, Dec. 2019, [Reviewed]
  • Energy-resolved neutron imaging with high spatial resolution using a superconducting delay-line kinetic inductance detector
    Yuki Iizawa; Hiroaki Shishido; Kazuma Nishimura; The Dang Vu; Kenji M Kojima; Tomio Koyama; Kenichi Oikawa; Masahide Harada; Shigeyuki Miyajima; Mutsuo Hidaka; Takayuki Oku; Kazuhiko Soyama; Kazuya Aizawa; Soh Y Suzuki; Takekazu Ishida
    Superconductor Science and Technology, Oct. 2019, [Reviewed]
  • Temperature dependent characteristics of neutron signals from a current-biased Nb nanowire detector with 10 B converter
    Vu The Dang; Yuki Iizawa; Kazuma Nishimura; Hiroaki Shishido; Kenji M Kojima; Kenichi Oikawa; Masahide Harada; Shigeyuki Miyajima; Mutsuo Hidaka; Takayuki Oku; Kazuhiko Soyama; Kazuya Aizawa; Tomio Koyama; Takekazu Ishida
    Journal of Physics Conference Series, Sep. 2019, [Reviewed]
  • Highlight of recent sample environment at J-PARC MLF
    Seiko Ohira-Kawamura; Takanori Hattori; Stefanus Harjo; Kazutaka Ikeda; Noboru Miyata; Tsukasa Miyazaki; Hiroyuki Aoki; Masao Watanabe; Yoshifumi Sakaguchi; Takayuki Oku
    Neutron News, 02 Jan. 2019, [Reviewed]
  • Measurement of P-Violation in 139La(n,γ)140La – a first step towards a T-Violation search
    Tomoki Yamamoto; Hirohiko M. Shimizu; Masaaki Kitaguchi; Katsuya Hirota; Christopher C. Haddock; Shunsuke Endo; Kohei Ishizaki; Takumi Sato; Shusuke Takada; Jun Koga; Tamaki Yoshioka; Takashi Ino; Koichiro Asahi; Takamasa Momose; Takahiro Iwata; Kenji Sakai; Takuya Okudaira; Takayuki Oku; Atsushi Kimura; Masahiro Hino; Tatsushi Shima; Yutaka Yamagata, We performed a polarized neutron transmission asymmetry measurement utilizing the 139La(n,γ)140La reaction. This measurement involved the use of a recently developed 3He spin filter mounted on the J-PARC MLF beam line number 4 (BL04). The resulting value of the longitudinal asymmetry AL = (11.7 ± 1.1)% was found to be in good agreement with existing values in the literature suggesting that the method by which we polarize the neutron beam is not a significant source of uncertainty. This preliminary work represents a first step toward future measurements of the angular correlation in (,Υ) reactions necessary in the search for enhanced T-Violation in compound nuclei., {EDP} Sciences
    EPJ Web of Conferences, 2019, [Reviewed]
  • Verification of the compound nuclear model for T-violation search
    T. Yamamoto; H. M. Shimizu; K. Ishizaki; Y. Niinomi; M. Kitaguchi; S. Takada; J. Koga; S. Makise; T. Yoshioka; A. Kimura; K. Sakai; T. Oku; T. Okudaira; S. Endo; Y. Tani; H. Fujioka; H. Yoshikawa; K. Hirota; T. Shima
    Proceedings of Science, 2019
  • Development of the neutron polarizer for the T-violation search using compound nuclei
    T. Okudaira; T. Oku; K. Sakai; T. Ino; H. Hayashida; K. Hiroi; T. Shinohara; K. Kakurai; K. Aizawa; H. M. Shimizu; M. Kitaguchi; T. Yamamoto
    Proceedings of Science, 2019, [Reviewed]
  • Cryogenic sample environments shared at the MLF, J-PARC
    Seiko Ohira-Kawamura; Ryuta Takahashi; Motoyuki Ishikado; Yasuhiro Yamauchi; Masatoshi Nakamura; Keiichi Ohuchi; Hiroshi Kira; Wataru Kambara; Kazuhiro Aoyama; Yoshifumi Sakaguchi; Masao Watanabe; Takayuki Oku
    Journal of Neutron Research, 2019, [Reviewed]
  • Measurement of Angular Distributions in 139La(n,γ) Reaction for T violation Search
    T. Okudaira; H; M. Shimizu; M. Kitaguchi; K. Hirota; C. C. Haddock; N. Oi; I. Ito; T. Yamamoto; S. Endo; S. Takada; J. Koga; T. Yoshioka; T. Ino; K. Asahi; T. Momose; T. Iwata; K. Sakai; T. Oku; A. Kimura; M. Hino; T. Shima; Y. Yamagata
    JPS Conference Proceedings, Nov. 2018, [Reviewed]
  • High-Speed Neutron Imaging Using a Current-Biased Delay-Line Detector of Kinetic Inductance
    Hiroaki Shishido; Yuya Miki; Hiroyuki Yamaguchi; Yuki Iizawa; Vu The Dang; Kenji M. Kojima; Tomio Koyama; Kenichi Oikawa; Masahide Harada; Shigeyuki Miyajima; Mutsuo Hidaka; Takayuki Oku; Kazuhiko Soyama; Soh Y. Suzuki; Takekazu Ishida
    Physical Review Applied, 17 Oct. 2018
  • Physical characteristics of delay-line current-biased kinetic inductance detector
    Yuki Iizawa; Hiroyuki Yamaguchi; Yuya Miki; Kazuma Nishimura; Hiroaki Shishido; Kenji M. Kojima; Kenichi Oikawa; Masahide Harada; Shigeyuki Miyajima; Mutsuo Hidaka; Takayuki Oku; Kazuhiko Soyama; Tomio Koyama; Takekazu Ishida
    Journal of Physics: Conference Series, 26 Jul. 2018
  • Neutron signal features of Nb-based kinetic inductance detector with 10 B convertor
    Yuya Miki; Hiroyuki Yamaguchi; Yuki Iizawa; Hiroaki Shishido; Kenji M. Kojima; Kenichi Oikawa; Masahide Harada; Shigeyuki Miyajima; Mutsuo Hidaka; Takayuki Oku; Kazuhiko Soyama; Takekazu Ishida
    Journal of Physics: Conference Series, 26 Jul. 2018
  • The development of polarized target for T-Violation search in a compound nucleus
    Ishizaki Kohei; Yoshioka Tamaki; Ino Takashi; Haddock Christopher; Asahi Koichiro; Momose Takamasa; Iwata Takahiro; Sakai Kenji; Kimura Atsushi; Okudaira Takuya; Oku Takayuki; Shimizu Hirohiko M.; Hino Masahiro; Shima Tatsushi; Yamagata Yutaka; Kitaguchi Masaaki; Hirota Katsuya; Yamamoto Tomoki; Endo Shunsuke; Sato Takumi; Takada Shusuke; Koga Jun, The Physical Society of Japan
    Meeting Abstracts of the Physical Society of Japan, 2018
  • The International Conference on Neutron Optics (NOP2017) in Nara
    Yoshiaki Kiyanagi; Kazuhisa Kakurai; Hirohiko Shimizu; Masaaki Kitaguchi; Takayuki Oku, Taylor and Francis Inc.
    Neutron News, 02 Oct. 2017, [Reviewed]
  • Neutron detection using the superconducting Nb-based current-biased kinetic inductance detector
    Hiroaki Shishido; Hiroyuki Yamaguchi; Yuya Miki; Shigeyuki Miyajima; Kenichi Oikawa; Masahide Harada; Mutsuo Hidaka; Takayuki Oku; Masatoshi Arai; Akira Fujimaki; Takekazu Ishida
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, Sep. 2017, [Reviewed]
  • Developments of high count rate neutron detector for T-Violation search
    Endo Shunsuke; Takada Shusuke; Koga Jun; Yoshioka Tamaki; Ino Takashi; Asahi Koichiro; Momose Takamasa; Iwata Takahiro; Sakai Kenji; Oku Takayuki; Kimura Atsushi; Shimizu Hirohiko M.; Hino Masahiro; Shima Tatsushi; Yamagata Yutaka; Kitaguchi Masaaki; Hirota Katsuya; Okudaira Takuya; Oi Noriko; Ito Ikuya; Yamamoto Tomoki; Haddock Christopher, The Physical Society of Japan
    Meeting Abstracts of the Physical Society of Japan, Jan. 2017
  • Development of an in-situ SEOP 3He Neutron Spin Filter for Magnetic Imaging Techniques
    H. Hayashida; K. Hiroi; T. Oku; H. Kira; K. Sakai; T. Shinohara; T. Kai; J. D. Parker; Y. Matsumoto; S. Y. Zhang; T. Ino; M. Ohkawara; K. Kakurai
    Physics Procedia, 2017, [Reviewed]
  • Neutron flux spectrum revealed by Nb-based current-biased kinetic inductance detector with a B-10 conversion layer
    Shigeyuki Miyajima; Hiroaki Shishido; Yoshito Narukami; Naohito Yoshioka; Akira Fujimaki; Mutsuo Hidaka; Kenichi Oikawa; Masahide Harada; Takayuki Oku; Masatoshi Arai; Takekazu Ishida
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Jan. 2017, [Reviewed]
  • Sample environment at the J-PARC MLF
    S. Ohira-Kawamura; T. Oku; M. Watanabe; R. Takahashi; K. Munakata; S. Takata; Y. Sakaguchi; M. Ishikado; K. Ohuchi; T. Hattori; H. Kira; K. Sakai; T. Aso; Y. Yamauchi; S. Isomae
    Journal of Neutron Research, 2017, [Reviewed]
  • Development of a polarized He-3 neutron spin filter for POLANO at J-PARC
    T. Ino; M. Ohkawara; K. Ohoyama; T. Yokoo; S. Itoh; Y. Nambu; M. Fujita; H. Kira; H. Hayashida; K. Hiroi; K. Sakai; T. Oku; K. Kakurai
    INTERNATIONAL CONFERENCE ON POLARISED NEUTRONS FOR CONDENSED MATTER INVESTIGATIONS (PNCMI 2016), 2017, [Reviewed]
  • Development of an in-situ SEOP He-3 neutron spin filter for magnetic imaging techniques
    H. Hayashida; K. Hiroi; T. Oku; H. Kira; K. Sakai; T. Shinohara; T. Kai; J. D. Parker; Y. Matsumoto; S. Y. Zhang; T. Ino; M. Ohkawara; K. Kakurai
    NEUTRON IMAGING FOR APPLICATIONS IN INDUSTRY AND SCIENCE, 2017, [Reviewed]
  • Non-magnetic flexible heaters for spin-exchange optical pumping of 3He and other applications
    T. Ino; H. Hayashida; H. Kira; T. Oku; K. Sakai
    Review of Scientific Instruments, 01 Nov. 2016, [Reviewed]
  • Development of a neutron imager based on superconducting detectors
    Shigeyuki Miyajima; Hiroyuki Yamaguchi; Hirotaka Nakayama; Hiroaki Shishido; Akira Fujimaki; Mutsuo Hidaka; Masahide Harada; Kenichi Oikawa; Takayuki Oku; Masatoshi Arai; Takekazu Ishida
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, Nov. 2016, [Reviewed]
  • 19aAF-1 Superconducting neutron detector by using Nb-based current biased kinetic inductance detector (CB-KID) VII
    Shishido H.; Yamaguchi H.; Miki Y.; Miyajima S.; Fujimaki A.; Hidaka M.; Oikawa K.; Harada M.; Oku T.; Arai M.; Kojima K.; Ishida T., The Physical Society of Japan (JPS)
    Meeting Abstracts of the Physical Society of Japan, 2016
  • 19aAF-2 Superconducting neutron detector by using Nb-based current biased kinetic inductance detector (CB-KID) VIII
    Ishida T.; Shishido H.; Yamaguchi H.; Miki Y.; Miyajima S.; Fujimaki A.; Hidaka M.; Oikawa K.; Harada M.; Oku T.; Arai M.; Kojima K., The Physical Society of Japan (JPS)
    Meeting Abstracts of the Physical Society of Japan, 2016
  • Signal Transmission Time Method for Neutron Imaging by usuing Superconducting neutron detector I
    Miki Y.; Yamaguchi H.; Shishido H.; Kojima K.; Miyajima S.; Fujimaki A.; Hidaka M.; Oikawa K.; Harada M.; Oku T.; Arai M.; Ishida T.,

    我々のグループでは、4系統の信号リード線と4系統の読出し回路を用いた新しいイメージング手法を提案した。極めて簡便な手法で、超高速、大画素の中性子イメージングを可能とする手法として期待されている。講演では、測定原理や原理検証実験の内容を中心に解説する。

    , The Physical Society of Japan
    Meeting Abstracts of the Physical Society of Japan, 2016
  • Novel imaging technique by means of signal tranmission time using Superconducting stripline detector
    Yamaguchi Hiroyuki; Miki Y.; Shishido H.; Kojima K.; Miyajima S.; Fujimaki A.; Hidaka M.; Oikawa K.; Harada M.; Oku T.; Arai M.; Ishida T.,

    我々のグループでは、4系統の信号リード線と4系統の読出し回路を用いた新しいイメージング手法を提案した。極めて簡便な手法で、超高速、大画素のイメージングを可能とする手法として期待される。また、対象は中性子には限られない。 講演では、パルスレーザーを使って励起した場合のイメージングの実例について紹介する。

    , The Physical Society of Japan
    Meeting Abstracts of the Physical Society of Japan, 2016
  • Polarisation Analysis Neutron Spectrometer, POLANO, at J-PARC- Concept and Magnetic Field Optimisation
    K. Ohoyama; T. Yokoo; S. Itoh; M. Nanbu; K. Iwasa; M. Ohkawara; N. Kaneko; T. Ino; H. Hayashida; T. Oku; H. Kira; S. Tasaki; M. Takeda; H. Kimura; T. J. Sato
    INTERNATIONAL CONFERENCE ON POLARISED NEUTRONS FOR CONDENSED MATTER INVESTIGATIONS (PNCMI 2014), 2016, [Reviewed]
  • Development of a He-3 nuclear spin flip system on an in-situ SEOP He-3 spin filter and demonstration for a neutron reflectometer and magnetic imaging technique
    H. Hayashida; T. Oku; H. Kira; K. Sakai; K. Hiroi; T. Ino; T. Shinohara; T. Imagawa; M. Ohkawara; K. Ohoyama; K. Kakurai; M. Takeda; D. Yamazaki; K. Oikawa; M. Harada; N. Miyata; K. Akutsu; M. Mizusawa; J. D. Parker; Y. Matsumoto; S. Zhang; J. Suzuki; K. Soyama; K. Aizawa; M. Arai
    INTERNATIONAL CONFERENCE ON POLARISED NEUTRONS FOR CONDENSED MATTER INVESTIGATIONS (PNCMI 2014), 2016, [Reviewed]
  • Conceptual design of a polarized He-3 neutron spin filter for polarized neutron spectrometer POLANO at J-PARC
    T. Ino; K. Ohoyama; T. Yokoo; S. Itoh; M. Ohkawara; H. Kira; H. Hayashida; K. Sakai; K. Hiroi; T. Oku; K. Kakurai; L. J. Chang
    INTERNATIONAL CONFERENCE ON POLARISED NEUTRONS FOR CONDENSED MATTER INVESTIGATIONS (PNCMI 2014), 2016, [Reviewed]
  • Neutron detection using a current biased kinetic inductance detector
    Hiroaki Shishido; Shigeyuki Miyajima; Yoshito Narukami; Kenichi Oikawa; Masahide Harada; Takayuki Oku; Masatoshi Arai; Mutsuo Hidaka; Akira Fujimaki; Takekazu Ishida
    APPLIED PHYSICS LETTERS, Dec. 2015, [Reviewed]
  • Signal from a Single Neutron by using Current-Biased Kinetic Inductance Detector made of Superconducting Nb Nanowire
    Narukami Yoshito; Miyajima Shigeyuki; Shishido Hiroaki; Fujimaki Akira; Hidaka Mutsuo; Oikawa Kenichi; Harada Masahide; Oku Takayuki; Arai Masatoshi; Ishida Takekazu
    Proceedings of the 2nd International Symposium on Science at J-PARC—Unlocking the Mysteries of Life, Matter and the Universe—, Oct. 2015, [Reviewed]
  • Time-Dependent Flux from Pulsed Neutrons Revealed by Superconducting Nb Current-Biased Kinetic Inductance Detector with 10B Converter Operated at 4 K
    Miyajima Shigeyuki; Narukami Yoshito; Shishido Hiroaki; Yoshioka Naohito; Fujimaki Akira; Hidaka Mutsuo; Oikawa Kenichi; Harada Masahide; Oku Takayuki; Arai Masatoshi; others
    Proceedings of the 2nd International Symposium on Science at J-PARC—Unlocking the Mysteries of Life, Matter and the Universe—, Oct. 2015, [Reviewed]
  • Development status of the NMR system for the polarized $^{3}$He Neutron Spin Filter (NSF) in the MLF at J-PARC
    Sakai, Kenji; Oku, Takayuki; Hayashida, Hirotoshi; Kira, Hiroshi; Hiroi, Kosuke; Ino, Takashi; Oyama, Kenji; Okawara, Manabu; Kakurai, Kazuhisa; Shinohara, Takenao; Oikawa, Kenichi; Harada, Masahide; Aizawa, Kazuya; Arai, Masatoshi; Sakaguchi, Yoshifumi; Suzuki, Junichi, The polarized $^{3}$He filter, which polarizes neutrons due to a large neutron absorption cross section of $^{3}$He with strong spin selectivity, becomes a convenient neutron spin filter (NSF) because it is operated immediately after its installation in beam lines without any neutron beam adjustments. For realizing such the NSF, a nuclear magnetic resonance (NMR) system is indispensable for monitoring $^{3}$He nuclear spin polarization {\it P} of the NSF. We have developed the flexible NMR system based on adiabatic fast passage (AFP) and pulse NMR methods by using their complementary features. In comparing with the values of {\it P} obtained by neutron transmission measurement at the beam line 10 of the J-PARC, we measured the correlations between the AFP and pulse NMR signals as changing condition of temperature, amplitude and applying period of the radio frequency field for the pulse NMR, and so on. As the results, we confirmed that our system would function enough as the {\it P} monitor., Journal of the Physical Society of Japan
    JPS Conference Proceedings (Internet), Sep. 2015, [Reviewed]
  • 18aPS-64 Superconducting neutron detector by using Nb-based current biased kinetic inductance detector (CB-KID) VI
    Nakayama H.; Yamaguchi H.; Narukami Y.; Shishido H.; Miyajima S.; Fujimaki A.; Hidaka M.; Oikawa K.; Harada M.; Oku T.; Arai M.; Kojima K.; Ishida T., The Physical Society of Japan (JPS)
    Meeting Abstracts of the Physical Society of Japan, 2015
  • 24pCJ-2 Superconducting neutron detector by using Nb-based current biased kinetic inductance detector (CB-KID) V
    Yamaguchi H.; Nakayama H.; Narukami Y.; Miyajima S.; Shishido H.; Fujimaki A.; Hidaka M.; Oikawa K.; Harada M.; Oku T.; Arai M.; Ishida T., The Physical Society of Japan (JPS)
    Meeting Abstracts of the Physical Society of Japan, 2015
  • 24pCJ-1 Superconducting neutron detector by using Nb-based current biased kinetic inductance detector (CB-KID) IV
    Narukami Y.; Shishido H.; Miyajima S.; Yamaguchi H.; Nakayama H.; Fujimaki A.; Hidaka M.; Oikawa K.; Harada M.; Oku T.; Arai M.; Ishida T., The Physical Society of Japan (JPS)
    Meeting Abstracts of the Physical Society of Japan, 2015
  • Improvement of 3He nuclear polarization for neutron scattering               
    Takashi Ino; Yasushi Arimoto; Hiroshi Kira; Hirotoshi Hayashida; Yoshifumi Sakaguchi; Manabu Ohkawara; Kenji Ohoyama; Kenji Sakai; Kosuke Hiroi; Takayuki Oku; Kazuhisa Kakurai
    JPS Conf. Proc., 2015, [Reviewed]
  • The design and q resolution of the small and wide angle neutron scattering instrument (TAIKAN) in J-PARC               
    S. Takata; J. Suzuki; T. Shinohara; T. Oku; T. Tominaga; K. Ohishi; H. Iwase; T. Nakatani; Y. Inamura; T. Ito; K. Suzuya; K. Aizawa; M. Arai; T. Otomo; M. Sugiyama
    JPS Conf. Proc., 2015, [Reviewed]
  • Demonstration Study of Small-Angle Polarized Neutron Scattering Using Polarized 3He Neutron Spin Filter
    H. Kira; H. Hayashida; H. Iwase; K. Ohishi; J. Suzuki; T. Oku; K. Sakai; K. Hiroi; S. Takata; T. Ino; K. Ohoyama; M. Ohkawara; T. Shinohara; K. Kakurai; K. Aizawa; M. Arai, Journal of the Physical Society of Japan
    JPS Conf. Proc., 2015, [Reviewed]
  • Polarized neutron spectrometer for inelastic experiments at J-PARC Status of POLANO Project
    Tetsuya Yokoo; Kenji Ohoyama; Shinichi Itoh; Kazuaki Iwasa; Naokatsu Kaneko; Junichi Suzuki; Manabu Ohkawara; Kazuya Aizawa; Seiji Tasaki; Takashi Ino; Kaoru Taketani; Shigeru Ishimoto; Masayasu Takeda; Takayuki Oku; Hiroshi Kira; Kouichi Hayashi; Hiroyuki Kimura; Taku J. Sato
    QENS/WINS 2014 - 11TH INTERNATIONAL CONFERENCE ON QUASIELASTIC NEUTRON SCATTERING AND 6TH INTERNATIONAL WORKSHOP ON INELASTIC NEUTRON SPECTROMETERS, 2015, [Reviewed]
  • Current-Biased Kinetic Inductance Detector for Neutrons
    Hiroaki Shishido; Shigeyuki Miyajima; Hiroyuki Yamaguchi; Hirotaka Nakayama; Yoshito Narukami; Akira Fujimaki; Mutsuo Hidaka; Ken'ichi Oikawa; Masahide Harada; Takayuki Oku; Masatoshi Arai; Takekazu Ishida
    2015 15TH INTERNATIONAL SUPERCONDUCTIVE ELECTRONICS CONFERENCE (ISEC), 2015, [Reviewed]
  • Development of <sup>3</sup>He Neutron Spin Filter for the Application at an Intense Pulsed Neutron Source Facility
    Takayuki Oku; Hiroshi Kira; Hirotoshi Hayashida; Kenji Sakai; Kosuke Hiroi; Takenao Shinohara; Takashi Ino; Manabu Ohkawara; Kenji Ohoyama; Shin-ichi Takata; Kazuki Ohishi; Hiroki Iwase; Noboru Miyata; Kazuhiro Akutsu; Yoshifumi Sakaguchi; Masayasu Takeda; Jun-ichi Suzuki; Kazuya Aizawa; Masatoshi Arai; Kazuhisa Kakurai, The Japanese Society for Neutron Science
    hamon, 2014
  • SANS study on double-network polymers               
    T. Tominaga; S. Takata; J. Suzuki; T. Shinohara; T. Oku; K. Ohishi; T. Nakatani; Y. Inamura; H. Iwase; T. Ito; H. Kira; K. Suzuya; K. Aizawa; M. Arai
    JPS Conf. Proc., 2014, [Reviewed]
  • Development of portable polarized 3He spin flipper for polarized neutron experiment at J-PARC
    K. Sakai; T. Oku; H. Hayashida; H. Kira; T. Shinohara; K. Oikawa; M. Harada; K. Kakurai; K. Aizawa; M. Arai; Y. Sakaguchi; J. Suzuki; T. Ino; K. Ohoyama
    J. Phys.: Conf. Ser., 2014, [Reviewed]
  • Applications of a micro-pixel chamber (mu PIC) based, time-resolved neutron imaging detector at pulsed neutron beams
    J. D. Parker; M. Harada; K. Hattori; S. Iwaki; S. Kabuki; Y. Kishimoto; H. Kubo; S. Kurosawa; Y. Matsuoka; K. Miuchi; T. Mizumoto; H. Nishimura; T. Oku; T. Sawano; T. Shinohara; J- Suzuki; A. Takada; T. Tanimori; K. Ueno; M. Ikeno; M. Tanaka; T. Uchida
    1ST CONFERENCE ON LIGHT AND PARTICLE BEAMS IN MATERIALS SCIENCE 2013 (LPBMS2013), 2014, [Reviewed]
  • Development and demonstration of in-situ SLOP He-3 spin filter system for neutron spin analyzer on the SHARAKU polarized neutron reflectometer at J-PARC
    H. Hayashida; T. Oku; H. Kira; K. Sakai; M. Takeda; Y. Sakaguchi; T. Ino; T. Shinohara; K. Ohoyama; J. Suzuki; K. Kakurai; M. Mizusawa; N. Miyata; D. Yamazaki; R. Maruyama; K. Soyama; M. Arai
    INTERNATIONAL WORKSHOP ON NEUTRON OPTICS AND DETECTORS (NOP&D 2013), 2014, [Reviewed]
  • Concepts of Neutron Polarisation Analysis Devices for a New Neutron Chopper Spectrometer, POLANO, in J-PARC
    K. Ohoyama; T. Yokoo; S. Itoh; T. Ino; M. Ohkawara; T. Oku; S. Tasaki; K. Iwasa; T. J. Sato; S. Ishimoto; K. Taketani; H. Kira; Y. Sakaguch; M. Nanbu; H. Hiraka; H. M. Shimizu; M. Takeda; M. Hino; K. Hayashi; U. Fliges; P. Hautle
    1ST CONFERENCE ON LIGHT AND PARTICLE BEAMS IN MATERIALS SCIENCE 2013 (LPBMS2013), 2014, [Reviewed]
  • Development of portable polarized He-3 neutron spin filter and its application to magnetic field imaging at J-PARC
    K. Sakai; T. Oku; H. Hayashida; H. Kira; T. Shinohara; K. Oikawa; M. Harada; K. Kakurai; K. Aizawa; M. Arai; Y. Sakaguchi; J. Suzuki; T. Ino; K. Ohoyama
    INTERNATIONAL WORKSHOP ON NEUTRON OPTICS AND DETECTORS (NOP&D 2013), 2014, [Reviewed]
  • Spatial resolution of a mu PIC-based neutron imaging detector
    J. D. Parker; M. Harada; K. Hattori; S. Iwaki; S. Kabuki; Y. Kishimoto; H. Kubo; S. Kurosawa; Y. Matsuoka; K. Miuchi; T. Mizumoto; H. Nishimura; T. Oku; T. Sawano; T. Shinohara; J. Suzuki; A. Takada; T. Tanimori; K. Ueno
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Oct. 2013, [Reviewed]
  • 26aXZB-2 Progress of Polarisation Analysis Neutron Spectrometer Project in J-PARC
    Ohoyama K; Yokoo T; Itoh S; Suzuki J; Sato T. J; Iwasa K; Kira H; Sakaguchi Y; Oku T; Ino T; Hiraka H; Matsuura M; Fujita M; Tomiyasu K; Kimura H; Suzuki J; Shimizu H. M; Arima T; Takeda M; Kaneko K; Hino M; Muto S; Nojiri H; Lee C. H; Park J. G; Choi S, 一般社団法人日本物理学会
    Meeting abstracts of the Physical Society of Japan, 26 Mar. 2013
  • Magnetic shield design of in-situ SEOP polarized 3He neutron spin filter system
    H. Kira; Y. Sakaguchi; J. Suzuki; T. Oku; M. Nakamura; M. Arai; K. Kakurai; Y. Endo; Y. Arimoto; T. Ino; H. M. Shimizu; T. Kamiyama; K. Ohoyama; H. Hiraka; K. Tsutsumi; K. Yamada; L. J. Chang
    Physics Procedia, 2013, [Reviewed]
  • 26aXZB-2 J-PARC偏極中性子散乱装置POLANO計画の状況(26aXZB 領域10,ビーム物理領域合同 X線・粒子線(中性子),領域10(誘電体,格子欠陥,X線・粒子線,フォノン))
    大山 研司; 横尾 哲也; 伊藤 晋一; 鈴木 純一; 佐藤 卓; 岩佐 和晃; 吉良 弘; 坂口 佳史; 奥 隆之; 猪野 隆; 平賀 晴弘; 松浦 直人; 藤田 全基; 富安 啓輔; 木村 宏之; 鈴木 淳市; 清水 裕彦; 有馬 孝尚; 武田 全康; 金子 耕士; 日野 正裕; 武藤 豪; 野尻 浩之; C. H. Lee; J. G. Park; S. Choi, 一般社団法人日本物理学会
    日本物理学会講演概要集, Jan. 2013
  • Polarization analysis equipment in SANS-J-II: Study of polymer electrolyte membrane for fuel cell
    Yohei Noda; Daisuke Yamaguchi; Ananda Putra; Satoshi Koizumi; Yoshifumi Sakaguchi; Takayuki Oku; Jun-ichi Suzuki
    9TH INTERNATIONAL CONFERENCE ON POLARISED NEUTRONS IN CONDENSED MATTER INVESTIGATIONS, 2013, [Reviewed]
  • Precision magnetic field mapping for the He-3 neutron spin filter
    Takashi Ino; Yasushi Arimoto; Hiroshi Kira; Yoshifumi Sakaguchi; Takenao Shinohara; Kenji Sakai; Takayuki Oku; Kazuhisa Kakurai; Kenji Ohoyama
    9TH INTERNATIONAL CONFERENCE ON POLARISED NEUTRONS IN CONDENSED MATTER INVESTIGATIONS, 2013, [Reviewed]
  • Magnetic Shield Design of In-situ SEOP Polarized He-3 Neutron Spin Filter System
    H. Kira; Y. Sakaguchi; J. Suzuki; T. Oku; M. Nakamura; M. Arai; K. Kakurai; Y. Endo; Y. Arimoto; T. Ino; H. M. Shimizu; T. Kamiyama; K. Ohoyama; H. Hiraka; K. Tsutsumi; K. Yamada; L-J Chang
    9TH INTERNATIONAL CONFERENCE ON POLARISED NEUTRONS IN CONDENSED MATTER INVESTIGATIONS, 2013, [Reviewed]
  • Newly Proposed Inelastic Neutron Spectrometer POLANO
    Tetsuya Yokoo; Kenji Ohoyama; Shinichi Itoh; Junichi Suzuki; Kazuaki Iwasa; Taku J. Sato; Hiroshi Kira; Yoshifumi Sakaguchi; Takashi Ino; Takayuki Oku; Keisuke Tomiyasu; Masato Matsuura; Haruhiro Hiraka; Masaki Fujita; Hiroyuki Kimura; Toyoto Sato; Junichi Suzuki; Masayasu Takeda; Koji Kaneko; Masahiro Hino; Suguru Muto
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, Jan. 2013, [Reviewed]
  • Basic Concepts of Polarisation Analysis for Neutron Chopper Spectrometer POLANO at J-PARC
    K. Ohoyama; T. Yokoo; S. Itoh; J. Suzuki; K. Iwasa; T. J. Sato; H. Kira; Y. Sakaguchi; T. Ino; T. Oku; K. Tomiyasu; M. Matsuura; H. Hiraka; M. Fujita; H. Kimura; T. Sato; J. Suzuki; H. M. Shimizu; T. Arima; M. Takeda; K. Kaneko; M. Hino; S. Muto; H. Nojiri; C. H. Lee; J. G. Park; S. Choi
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, Jan. 2013, [Reviewed]
  • Neutron imaging detector based on the mu PIC micro-pixel chamber
    J. D. Parker; K. Hattori; H. Fujioka; M. Harada; S. Iwaki; S. Kabuki; Y. Kishimoto; H. Kubo; S. Kurosawa; K. Miuchi; T. Nagae; H. Nishimura; T. Oku; T. Sawano; T. Shinohara; J. Suzuki; A. Takada; T. Tanimori; K. Ueno
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Jan. 2013, [Reviewed]
  • Development of a non-adiabatic two-coil spin flipper for a polarised thermal neutron diffractometer with a He-3 spin filter
    Kenji Ohoyama; Kenji Tsutsumi; Takashi Ino; Haruhiro Hiraka; Yasuo Yamaguchi; Hiroshi Kira; Takayuki Oku; Yoshifumi Sakaguchi; Yasushi Arimoto; Wei Zhang; Hisamichi Kimura; Kazuaki Iwasa; Masayasu Takeda; Jun-ichi Suzuki; Kazuyoshi Yamada; Kazuhisa Kakurai
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Jul. 2012, [Reviewed]
  • A compact SEOP He-3 neutron spin filter with AFP NMR
    Takashi Ino; Yasushi Arimoto; Hirohiko M. Shimizu; Yoshifumi Sakaguchi; Kenji Sakai; Hiroshi Kira; Takenao Shinohara; Takayuki Oku; Jun-ichi Suzuki; Kazuhisa Kakurai; Lieh-Jeng Chang
    5TH EUROPEAN CONFERENCE ON NEUTRON SCATTERING, 2012, [Reviewed]
  • Development of polarized Xe gas target for neutron experiment at J-PARC
    K. Sakai; T. Oku; T. Shinohara; H. Kira; M. Ooi; F. Maekawa; K. Kakurai; T. Ino; Y. Arimoto; H. M. Shimizu; Y. Sakaguchi; J. Suzuki; K. Ohoyama; L. J. Chang
    5TH EUROPEAN CONFERENCE ON NEUTRON SCATTERING, 2012, [Reviewed]
  • Quantitative magnetic field imaging by polarized pulsed neutrons at J-PARC
    T. Shinohara; K. Sakai; M. Ohi; T. Kai; M. Harada; K. Oikawa; F. Maekawa; J. Suzuki; T. Oku; S. Takata; K. Aizawa; M. Arai; Y. Kiyanagi
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Sep. 2011, [Reviewed]
  • External cavity design of high-power diode laser for polarized helium-3 neutron spin filters based on spin-exchange optical pumping
    Y. Arimoto; T. Ino; H. M. Shimizu; T. Kamiyama; H. Kira; T. Oku; Y. Sakaguchi; K. Kakurai; K. Sakai; J. Suzuki; S. Koizumi; M. Arai; Y. Endo; M. Nakamura; T. Shinohara; M. Takeda; S. Wakimoto; D. Yamazaki; K. Ohoymama; H. Hiraka; K. Yamada; K. Tsutsumi; L. -J. Chang
    PHYSICA B-CONDENSED MATTER, Jun. 2011, [Reviewed]
  • Research on glass cells for He-3 neutron spin filters
    Y. Sakaguchi; H. Kira; T. Oku; T. Shinohara; J. Suzuki; K. Sakai; M. Nakamura; K. Suzuya; K. Aizawa; M. Arai; M. Takeda; S. Wakimoto; D. Yamazaki; S. Koizumi; Y. Endoh; L. J. Chang; Y. Arimoto; T. Ino; H. M. Shimizu; T. Kamiyama; K. Ohoyama; H. Hiraka; K. Tsutsumi; K. Yamada; K. Ohara; K. Kakurai
    PHYSICA B-CONDENSED MATTER, Jun. 2011, [Reviewed]
  • Development and test of SEOP neutron spin filter in Japan
    H. Kira; Y. Sakaguchi; T. Oku; J. Suzuki; M. Nakamura; M. Arai; K. Kakurai; Y. Endo; Y. Arimoto; T. Ino; H. M. Shimizu; T. Kamiyama; K. Tsutsumi; K. Ohoyama; H. Hiraka; K. Yamada; L. -J. Chang
    PHYSICA B-CONDENSED MATTER, Jun. 2011, [Reviewed]
  • Measurement of the neutron beam polarization of BL05/NOP beamline at J-PARC
    T. Ino; Y. Arimoto; T. Yoshioka; K. Mishima; K. Taketani; S. Muto; H. M. Shimizu; H. Kira; Y. Sakaguchi; T. Oku; K. Sakai; T. Shinohara; J. Suzuki; H. Otono; H. Oide; S. Yamashita; S. Imajo; H. Funahashi; M. Yamada; Y. Iwashita; M. Kitaguchi; M. Hino; Z. Suzuki; T. Sanuki; T. Seki; K. Hirota; K. Ikeda; H. Sato; Y. Otake; H. Ohmori; T. Morishima; T. Shima
    PHYSICA B-CONDENSED MATTER, Jun. 2011, [Reviewed]
  • A high S/N ratio spin flip chopper system for a pulsed neutron source
    K. Taketani; T. Ebisawa; M. Hino; K. Hirota; T. Ino; M. Kitaguchi; K. Mishima; S. Muto; H. Oide; T. Oku; H. Otone; K. Sakai; T. Shima; H. M. Shimizu; S. Yamashita; T. Yoshioka
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Apr. 2011, [Reviewed]
  • Characterization of glasses for He-3 neutron spin filter cells
    Y. Sakaguchi; H. Kira; T. Oku; T. Shinohara; J. Suzuki; K. Sakai; M. Nakamura; K. Suzuya; M. Arai; M. Takeda; S. Wakimoto; D. Yamazaki; S. Koizumi; Y. Endoh; K. Kakurai; Y. Arimoto; T. Ino; H. M. Shimizu; T. Kamiyama; K. Ohoyama; H. Hiraka; K. Tsutsumi; K. Yamada; L. J. Chang
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Apr. 2011, [Reviewed]
  • Polarization of very cold neutron using a permanent magnet quadrupole
    Tamaki Yoshioka; Kenji Mishima; Takashi Ino; Kaoru Taketani; Suguru Muto; Takahiro Morishima; Hirohiko M. Shimizu; Takayuki Oku; Junichi Suzuki; Takenao Shinohara; Kenji Sakai; Hiromi Sato; Katsuya Hirota; Yoshie Otake; Masaaki Kitaguchi; Masahiro Hino; Yoshichika Seki; Yoshihisa Iwashita; Masako Yamada; Masahiro Ichikawa; Takanori Sugimoto; Shinsuke Kawasaki; Sachio Komamiya; Hidetoshi Otono; Yoshio Kamiya; Satoru Yamashita; Peter Geltenbort
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Apr. 2011, [Reviewed]
  • Development of thin film neutron focusing lenses
    Takashi Ino; Takenao Shinohara; Tomohiro Adachi; Katsuya Hirota; Masahiro Hino; Takayuki Oku; Kaoru Taketani; Kenji Mishima; Tamaki Yoshioka; Yasushi Arimoto; Suguru Muto; Jun-ichi Suzuki; Hirohiko M. Shimizu
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Apr. 2011, [Reviewed]
  • Thermal fluctuations in perpendicular recording media: New methodology for estimation of activation moment
    H. Mamiya; H. Hagiya; Y. Oba; M. Ohnuma; T. Oku; J. Suzuki; M. Yokoyama; T. Katayama; Y. Nishihara; H. Awano; T. Koda
    Journal of Physics: Conference Series, 2011, [Reviewed]
  • Structure of glasses for He-3 neutron spin filter cells
    Y. Sakaguchi; H. Kira; T. Oku; T. Shinohara; J. Suzuki; K. Sakai; M. Nakamura; K. Suzuya; K. Aizawa; M. Arai; M. Takeda; Y. Endoh; L. J. Chang; Y. Arimoto; T. Ino; H. M. Shimizu; T. Kamiyama; K. Ohoyama; H. Hiraka; K. Tsutsumi; K. Yamada; K. Ohara; K. Kakurai
    JCNS WORKSHOP ON MODERN TRENDS IN PRODUCTION AND APPLICATIONS OF POLARIZED 3HE, 2011, [Reviewed]
  • Applications of He-3 neutron spin filters on the small-angle neutron scattering spectrometer SANS-J-II
    Y. Sakaguchi; H. Kira; T. Oku; T. Shinohara; J. Suzuki; K. Sakai; M. Nakamura; K. Aizawa; M. Arai; Y. Noda; S. Koizumi; M. Takeda; Y. Endoh; L. J. Chang; Y. Arimoto; T. Ino; H. M. Shimizu; T. Kamiyama; K. Ohoyama; H. Hiraka; K. Tsutsumi; K. Yamada; K. Kakurai
    JCNS WORKSHOP ON MODERN TRENDS IN PRODUCTION AND APPLICATIONS OF POLARIZED 3HE, 2011, [Reviewed]
  • Developments of In-Situ SEOP Polarized He-3 Neutron Spin Filter in Japan
    H. Kira; Y. Sakaguchi; T. Oku; J. Suzuki; M. Nakamura; M. Arai; Y. Endoh; L. J. Chang; K. Kakurai; Y. Arimoto; T. Ino; H. M. Shimizu; T. Kamiyama; K. Ohoyama; H. Hiraka; K. Tsutsumi; K. Yamada
    JCNS WORKSHOP ON MODERN TRENDS IN PRODUCTION AND APPLICATIONS OF POLARIZED 3HE, 2011, [Reviewed]
  • Neutron Imaging Detector Based on the mu PIC Micro-Pixel Gaseous Chamber
    Joseph D. Parker; Masahide Harada; Kaori Hattori; Satoru Iwaki; Shigeto Kabuki; Yuji Kishimoto; Hidetoshi Kubo; Shunsuke Kurosawa; Kentaro Miuchi; Hironobu Nishimura; Takayuki Oku; Tatsuya Sawano; Takenao Shinohara; Jun-ichi Suzuki; Toru Tanimori; Kazuki Ueno
    2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC), 2011, [Reviewed]
  • Practical Applications of Permanent Magnet Multipoles
    Y. Iwashita; M. Ichikawa; M. Yamada; T. Sugimoto; H. Tongu; H. Fujisawa; M. Masuzawa; T. Tauchi; T. Oku; K. Hirota; H. M. Shimizu; Caitu Shi; Y. Zhu
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, Jun. 2010, [Reviewed]
  • Performance of a neutron imaging detector based on the μpIC micro-pixel gaseous chamber
    Joseph D. Parker; Masahide Harada; Kaori Hattori; Satoru Iwaki; Shigeto Kabuki; Yuji Kishimoto; Hidetoshi Kubo; Shunsuke Kurosawa; Kentaro Miuchi; Hironobu Nishimura; Takayuki Oku; Tatsuya Sawano; Takenao Shinohara; Jun-Ichi Suzuki; Toru Tanimori; Kazuki Ueno
    IEEE Nuclear Science Symposium Conference Record, 2010, [Reviewed]
  • Development of a triplet magnetic lens system to focus a pulsed neutron beam
    Takayuki Oku; Hiroshi Kira; Takenao Shinohara; Shin-ichi Takata; Masatoshi Arai; Jun-ichi Suzuki; Hirohiko M. Shimizu
    INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009, 2010, [Reviewed]
  • Performance of a Neutron Imaging Detector Based on the mu PIC Micro-Pixel Gaseous Chamber
    Joseph D. Parker; Masahide Harada; Kaori Hattori; Satoru Iwaki; Shigeto Kabuki; Yuji Kishimoto; Hidetoshi Kubo; Shunsuke Kurosawa; Kentaro Miuchi; Hironobu Nishimura; Takayuki Oku; Tatsuya Sawano; Takenao Shinohara; Jun-ichi Suzuki; Toru Tanimori; Kazuki Ueno
    2010 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD (NSS/MIC), 2010, [Reviewed]
  • Small-angle polarized neutron scattering study of spherical Fe16N2 nano-particles for magnetic recording tape
    Takayuki Oku; Takayuki Kikuchi; Takenao Shinohara; Jun-ichi Suzuki; Yuya Ishii; Masayasu Takeda; Kazuhisa Kakurai; Yuji Sasaki; Mikio Kishimoto; Makoto Yokoyama; Yoshikazu Nishihara
    PHYSICA B-CONDENSED MATTER, Sep. 2009, [Reviewed]
  • Design of a neutron polarizer using polarizing super mirrors for the TOF-SANS instrument at the J-PARC
    Takenao Shinohara; Jun-ichi Suzuki; Takayuki Oku; Shin-ichi Takata; Hiroshi Kira; Kentaro Suzuya; Kazuya Aizawa; Masatoshi Arai; Toshiya Otomo; Masaaki Sugiyama
    PHYSICA B-CONDENSED MATTER, Sep. 2009, [Reviewed]
  • Development of modulating permanent magnet sextupole lens for focusing of pulsed cold neutrons
    Masako Yamada; Yoshihisa Iwashita; Masahiro Ichikawa; Takanori Sugimoto; Hiromu Tongu; Hiroshi Fujisawa; Hirohiko M. Shimizu; Takashi Ino; Kenji Mishima; Kaoru Taketani; Tamaki Yoshioka; Suguru Muto; Takahiro Morishima; Takayuki Oku; Jun ichi Suzuki; Takenao Shinohara; Kenji Sakai; Hiromi Sato; Katsuya Hirota; Yoshie Otake; Yoshichika Seki; Shinsuke Kawasaki; Sachio Komamiya; Yoshio Kamiya; Hidetoshi Otono; Satoru Yamashita; Peter Geltenbort
    Physica B: Condensed Matter, 01 Sep. 2009, [Reviewed]
  • Highly polarized very cold neutrons through a permanent magnet quadrupole
    Kaoru Taketani; Kenji Mishima; Takashi Ino; Tamaki Yoshioka; Suguru Muto; Takahiro Morishima; Hirohiko M. Shimizu; Takayuki Oku; Junichi Suzuki; Takenao Shinohara; Kenji Sakai; Hiromi Sato; Katsuya Hirota; Yoshie Otake; Masaaki Kitaguchi; Masahiro Hino; Yoshichika Seki; Yoshihisa Iwashita; Masako Yamada; Masahiro Ichikawa; Takanori Sugimoto; Shinsuke Kawasaki; Sachio Komamiya; Yoshio Kamiya; Hidetoshi Otono; Satoru Yamashita; Peter Geltenbort
    Physica B: Condensed Matter, 01 Sep. 2009, [Reviewed]
  • Development of a compact on-beam SEOP neutron spin filter
    Takashi Ino; Mitsutaka Nakamura; Takayuki Oku; Takenao Shinohara; Jun-ichi Suzuki; Kenji Ohoyama; Haruhiro Hiraka
    PHYSICA B-CONDENSED MATTER, Sep. 2009, [Reviewed]
  • Magnetic Intraparticle Structure in Ferromagnetic Pd Nanoparticle
    Yojiro Oba; Takenao Shinohara; Takayuki Oku; Jun-ichi Suzuki; Masato Ohnuma; Tetsuya Sato
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, Apr. 2009, [Reviewed]
  • Simulation study of a pulsed neutron focusing using a pulsed electromagnetic lens coupled with a permanent magnet
    H. Iwashita; H. Iwasa; F. Hiraga; T. Kamiyama; Y. Kiyanagi; J. Suzuki; T. Shinohara; T. Oku; H. M. Shimizu
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Feb. 2009, [Reviewed]
  • Design and performance analyses of the new time-of-flight smaller-angle neutron scattering instrument at J-PARC
    Takenao Shinohara; Shin-ichi Takata; Jun-ichi Suzuki; Takayuki Oku; Kentaro Suzuya; Kazuya Aizawa; Masatoshi Arai; Toshiya Otomo; Masaaki Sugiyama
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Feb. 2009, [Reviewed]
  • Pulsed neutron beam control using a magnetic multiplet lens
    Takayuki Oku; Takenao Shinohara; Jun-ichi Suzuki; Roger Pynn; Hirohiko M. Shimizu
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Feb. 2009, [Reviewed]
  • 2D elemental analysis approach in focused neutron beam induced prompt gamma-ray analysis at JAEA
    M. Segawa; H. Matsue; Y. Sekiya; S. Yamada; T. Shinohara; T. Oku; H. Sasao; J. Suzuki; H. M. Shimizu
    JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, Dec. 2008, [Reviewed]
  • Application of a neutron-polarizing device based on a quadrupole magnet to a focusing SANS instrument with a magnetic neutron lens
    T. Oku; T. Shinohara; T. Kikuchi; Y. Oba; H. Iwase; S. Koizumi; J. Suzuki; H. M. Shimizu
    MEASUREMENT SCIENCE AND TECHNOLOGY, Mar. 2008, [Reviewed]
  • A high-resolution two-dimensional He-3 neutron MSGC with pads for neutron scattering experiments
    K. Fujita; H. Takahashi; P. Siritiprussamee; H. Niko; K. Nishi; Y. Takada; T. Oku; J. Suzuki; T. Ino; H. M. Shimizu; M. Furusaka
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Oct. 2007, [Reviewed]
  • Highly polarized cold neutron beam obtained by using a quadrupole magnet
    Takayuki Oku; Satoru Yamada; Takenao Shinohara; Jun-ichi Suzuki; Kenji Mishima; Katsuya Hirota; Hiromi Sato; Hirohiko M. Shimizu
    PHYSICA B-CONDENSED MATTER, Jul. 2007, [Reviewed]
  • Hierarchic structure of shish-kebab by neutron scattering in a wide Q range
    Toshiji Kanaya; Go Matsuba; Yoshiko Ogino; Koji Nishida; Hirohiko M. Shimizu; Takenao Shinohara; Takayuki Oku; Junichi Suzuki; Toshiya Otomo
    MACROMOLECULES, May 2007, [Reviewed]
  • Wide-q observation from 10(-4) to 2.0 A(-1) using a focusing and polarized neutron small-angle scattering spectrometer, SANS-J-II
    Hiroki Iwase; Satoshi Koizumi; Jun-ichi Suzuki; Takayuki Oku; Hajime Sasao; Hirokazu Tanaka; Hirohiko M. Shimizu; Takeji Hashimoto
    JOURNAL OF APPLIED CRYSTALLOGRAPHY, Apr. 2007, [Reviewed]
  • Focusing and polarized neutron small-angle scattering spectrometer (SANS-J-II). The challenge of observation over length scales from an angstrorm to a micrometre
    Satoshi Koizumi; Hiroki Iwase; Jun-ichi Suzuki; Takayuki Oku; Ryuhei Motokawa; Hajime Sasao; Hirokazu Tanaka; Daisuke Yamaguchi; Hirohiko M. Shimizu; Takeji Hashimoto
    JOURNAL OF APPLIED CRYSTALLOGRAPHY, Apr. 2007, [Reviewed]
  • A focusing-geometry small-angle neutron scattering instrument with a magnetic neutron lens
    Takayuki Oku; Hiroki Iwase; Takenao Shinohara; Satoru Yamada; Katsuya Hirota; Satoshi Koizumi; Jun-ichi Suzuki; Takeji Hashimoto; Hirohiko M. Shimizu
    JOURNAL OF APPLIED CRYSTALLOGRAPHY, Apr. 2007, [Reviewed]
  • Focusing and polarized neutron ultra-small-angle scattering spectrometer (SANS-J-II) at Research Reactor JRR3, Japan
    Satoshi Koizumi; Hiroki Iwase; Jun-ichi Suzuki; Takayuki Oku; Ryuhei Motokawa; Hajime Sasao; Hirokazu Tanaka; Daisuke Yamaguchi; Hirohiko M. Shimizu; Takeji Hashimoto
    PHYSICA B-CONDENSED MATTER, Nov. 2006, [Reviewed]
  • Simulation study of neutron focusing effect on a pulsed sextupole magnetic lens using PHITS code
    I. Mitsutake; Y. Kiyanagi; T. Kamiyama; K. Nitta; J. Suzuki; T. Oku; H. M. Shimizu
    PHYSICA B-CONDENSED MATTER, Nov. 2006, [Reviewed]
  • Development of a multichannel parabolic guide for thermal neutron beam focusing
    Satoru Yamada; Takenao Shinohara; Hajime Sasao; Takayuki Oku; Jun-ichi Suzuki; Hideaki Matsue; Hirohiko M. Shimizu
    PHYSICA B-CONDENSED MATTER, Nov. 2006, [Reviewed]
  • Development of neutron Anger-camera detector based on flatpanel PMT
    Katsuya Hirota; Setsuo Satoh; Kenji Sakai; Takenao Shinohara; Kazuaki Ikeda; Kenji Mishima; Satoru Yamada; Takayuki Oku; Jun-ichi Suzuki; Michihiro Furusaka; Hirohiko M. Shimizu
    PHYSICA B-CONDENSED MATTER, Nov. 2006, [Reviewed]
  • Thermal neutron refraction by material prism
    Takenao Shinohara; Katsuya Hirota; Tomohiro Adachi; Kazuaki Ikeda; Hirohiko M. Shimizu; Jun-ichi Suzuki; Takayuki Oku
    PHYSICA B-CONDENSED MATTER, Nov. 2006, [Reviewed]
  • Development of measurement system of neutron beta decay
    Kenji Mishima; Satoru Yamada; Hiromi Sato; Katsuya Hirota; Takenao Shinohara; Takahiro Morishima; Jun-ichi Suzuki; Takayuki Oku; Hirohiko M. Shimizu
    PHYSICA B-CONDENSED MATTER, Nov. 2006, [Reviewed]
  • A magnetic neutron lens based on an extended Halbach-type permanent sextupole magnet
    Takayuki Oku; Satoru Yamada; Hajime Sasao; Jun-ichi Suzuki; Takenao Shinohara; Katsuya Hirota; Kazuaki Ikeda; Tsuyosi Tsuzaki; Yoshiaki Kiyanagi; Michihiro Furusaka; Hirohiko M. Shimizu
    PHYSICA B-CONDENSED MATTER, Nov. 2006, [Reviewed]
  • Nb3Sn sextupole magnet for neutron beam focusing
    K. Okamoto; K. Nakamura; Y. Seki; M. Ohno; T. Takao; C. Mitsuda; N. Ohuchi; T. Shintomi; K. Tsuchiya; T. Adachi; H. Shimizu; T. Oku; J. Suzuki; S. Kimura; S. Hanai; M. Urata; I. Watanabe
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, Jun. 2006, [Reviewed]
  • Development of MSGC with GLG method
    NIKO H; FUJITA K; TAKAHASHI H; SIRITIPRUSSAMEE P; NAKAZAWA M; FURUSAKA M; KISHIMOTO S; INO T; SUZUKI J; OKU T; TOYOKAWA H, 応用物理学会放射線分科会
    Ionizing radiation., 01 Apr. 2006
  • Transmission bender for polarizing neutrons
    T Krist; J Peters; HM Shimizu; J Suzuki; T Oku
    PHYSICA B-CONDENSED MATTER, Feb. 2005, [Reviewed]
  • Some experimental studies on time-of-flight radiography using a pulsed neutron source
    Y Kiyanagi; N Sakamoto; H Iwasa; T Kamiyama; F Hiraga; S Sato; H Sagehashi; T Ino; M Furusaka; J Suzuki; A Gorin; Manuilov, I; A Ryazantsev; K Kuroda; K Sakai; F Tokanai; H Miyasaka; T Adachi; T Oku; K Ikeda; S Suzuki; K Morimoto; HM Shimizu
    IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Feb. 2005, [Reviewed]
  • Development of polarized neutron optics
    HM Shimizu; T Oku; J Suzuki; M Furusaka; Y Kiyanagi
    PHYSICA B-CONDENSED MATTER, Feb. 2005, [Reviewed]
  • A demonstration study of focusing geometry SANS using a magnetic lens
    T Oku; J Suzuki; H Sasao; S Yamada; M Furusaka; T Adachi; T Shinohara; K Ikeda; HM Shimizu
    PHYSICA B-CONDENSED MATTER, Feb. 2005, [Reviewed]
  • High intensity neutron spin flip chopper
    T. Ebisawa; K. Soyama; D. Yamazaki; S. Tasaki; K. Sakai; T. Oku; R. Maruyama; M. Hino, {CrossRef} Test Account
    Journal of Neutron Research, 2005, [Reviewed]
  • Boron based oxide scintillation glass for neutron detection
    M Ishii; Y Kuwano; T Asai; S Asaba; M Kawamura; N Senguttuvan; T Hayashi; M Kobayashi; M Nikl; S Hosoya; K Sakai; T Adachi; T Oku; HM Shimizu
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Jan. 2005, [Reviewed]
  • Development of a neutron detector based on a position-sensitive photomultiplier
    K Hirota; T Shinohara; K Ikeda; K Mishima; T Adachi; T Morishima; S Satoh; T Oku; S Yamada; H Sasao; J Suzuki; HM Shimizu
    PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2005, [Reviewed]
  • Preliminary results on development of a thin GSO scintillator for neutron science
    JH Kaneko; N Susa; S Tsuchida; M Watanabe; S Miura; T Mizuno; Y Yamauchi; M Hashiba; T Oku; A Homma; F Fujita; T Ino; M Furusaka; T Sawamura; HM Shimizu; Y Kiyanagi
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Aug. 2004, [Reviewed]
  • Fabrication process and system for neutron refractive optics
    H Ohmori; W Lin; J Guo; Y Uehara; S Morita; N Mitsuishi; K Yoshikawa; M Ohmori; K Ikeda; T Oku; T Adachi; HM Shimizu
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Aug. 2004, [Reviewed]
  • Development of a compound focusing lens: improvement of signal-noise ratio
    T Adachi; K Ikeda; T Shinohara; K Hirota; T Oku; J Suzuki; H Sato; K Hoshino; J Guo; W Lin; H Ohmori; HM Shimizu; K Sakai; KC Littrell; CK Loong
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Aug. 2004, [Reviewed]
  • Nb3Sn coil R&D of a superconducting sextupole magnet for neutron refractive optics device
    Watanabe, I; S Hanai; M Kyoto; T Shintomi; K Tsuchiya; J Suzuki; T Oku; T Adachi; HM Shimizu
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Aug. 2004, [Reviewed]
  • Monte-Carlo simulation codes development and their applications to neutron optical devices and neutron scattering instruments
    M Furusaka; K Niita; S Suzuki; K Fujita; J Suzuki; T Oku; HM Shimizu; T Otomo; M Misawa
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Aug. 2004, [Reviewed]
  • A test of track imaging by cold neutron using optical capillary gas proportional counter
    F Tokanai; S Motegi; H Sakurai; S Gunji; JI Suzuki; T Oku
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Aug. 2004, [Reviewed]
  • Luminescence of doped lithium tetraborate single crystals and glass
    M Ishii; Y Kuwano; S Asaba; T Asai; M Kawamura; N Senguttuvan; T Hayashi; M Koboyashi; M Nikl; S Hosoya; K Sakai; T Adachi; T Oku; HM Shimizu
    RADIATION MEASUREMENTS, Aug. 2004, [Reviewed]
  • Development of Ni/Ti supermirrors with large-m and a curved surface
    K Ikeda; T Adachi; T Shinohara; T Morishima; K Hirota; Y Takizawa; H Sato; HM Shimizu; M Hino; S Tasaki; T Oku; K Soyama
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Aug. 2004, [Reviewed]
  • Neutron optics and a superconducting magnetic lens for small-angle neutron scattering with focusing geometry
    HM Shimizu; T Adachi; M Furusaka; Y Kiyanagi; T Oku; H Sasao; T Shinohara; J Suzuki
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Aug. 2004, [Reviewed]
  • Feasibility study on application of a magnetic neutron lens to SANS experiments
    T Oku; J Suzuki; H Sasao; T Adachi; T Shinohara; K Ikeda; T Morishima; K Sakai; Y Kiyanagi; M Furusaka; HM Shimizu
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Aug. 2004, [Reviewed]
  • Development of a magnetic focusing device for pulsed neutrons
    J Suzuki; T Oku; T Adachi; HM Shimizu; Y Kiyanagi; T Kamiyama; F Hiraga; H Iwasa; K Sato; M Furusaka
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Aug. 2004, [Reviewed]
  • Development of an optical device for thermal neutrons by amorphous perfluoropolymer
    T Shinohara; T Adachi; K Ikeda; T Morishima; K Hirota; HM Shimizu; T Oku; J Suzuki
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Aug. 2004, [Reviewed]
  • Development of position-sensitive neutron detector based on scintillator
    K Sakai; K Hirota; T Adachi; K Ikeda; T Morishima; HM Shimizu; M Furusaka; S Sato; Y Kiyanagi; N Sakamoto; T Sakuma; T Oku; J Suzuki; K Littrell; CK Loong; JB Czirr; TK McKnight
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Aug. 2004, [Reviewed]
  • Formation of very short pulse by neutron spin flip chopper for J-PARC
    T Ebisawa; K Soyama; D Yamazaki; S Tasaki; K Sakai; T Oku; R Maruyama; M Hino
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Aug. 2004, [Reviewed]
  • Possible application of compound Fresnel lens for neutron beam focusing
    T. Adachi; K. Ikeda; T. Oku; J. Guo; W. Lin; H. Ohmori; T. Morishima; H. M. Shimizu; K. Sakai; J. Suzuki; K. C. Littrell; C. -K. Loong
    PHYSICA B-CONDENSED MATTER, Jul. 2004, [Reviewed]
  • Recent development of position-sensitive neutron detectors employing wavelength-shifting cross-fiber
    K. Sakai; T. Adachi; T. Oku; K. Ikeda; T. Morishima; H. M. Shimizu; M. Fusrusaka; T. Ino; S. Sato; Y. Kiyanagi; N. Sakamoto; T. Sakuma; J. Suzuki; K. Listtrell; C. -K. Loong; R. Goyette
    PHYSICA B-CONDENSED MATTER, Jul. 2004, [Reviewed]
  • Very low energy neutron radiography with neutron energy selection system for variable image contrast
    Y Kawabata; T Nakano; M Hino; T Oku; J Susuki; U Matsushima
    ADVANCES IN NONDESTRUCTIVE EVALUATION, PT 1-3, 2004, [Reviewed]
  • Growth of Cu-doped Li2B4O7 single crystals by vertical Bridgman method and their characterization
    M Ishii; Y Kuwano; T Asai; N Senguttuvan; T Hayashi; M Kobayashi; T Oku; K Sakai; T Adachi; HM Shimizu; J Suzuki
    JOURNAL OF CRYSTAL GROWTH, Sep. 2003, [Reviewed]
  • Neutron spin flip chopper with very high S/N ratio for pulsed source
    S Tasaki; T Ebisawa; S Kawakami; R Maruyama; K Sakai; T Oku; D Yamazaki; K Soyama; M Hino; T Kawai
    PHYSICA B-CONDENSED MATTER, Jul. 2003, [Reviewed]
  • Development of a spin flipper for an application of a neutron magnetic device
    T Oku; K Sakai; T Adachi; K Ikeda; HM Shimizu; R Maruyama; M Hino; S Tasaki; Y Kiyanagi; T Kamiyama; H Iwasa; K Sasaki; T Ino; M Furusaka; D Yamazaki; J Suzuki; T Ebisawa
    PHYSICA B-CONDENSED MATTER, Jul. 2003, [Reviewed]
  • Development of a high-resolution scintillator-based area detector for neutrons
    N Sakamoto; Y Kiyanagi; S Sato; H Sagehashi; M Furusaka; J Suzuki; KC Littrell; CK Loong; A Gorin; Manuilov, I; A Ryazantsev; K Kuroda; K Sakai; F Tokanai; T Adachi; T Oku; K Ikeda; H Miyasaka; S Suzuki; K Morimoto; HM Shimizu
    JOURNAL OF APPLIED CRYSTALLOGRAPHY, Jun. 2003, [Reviewed]
  • Cold neutron beam focusing by a superconducting sextupole magnet
    J Suzuki; T Oku; T Adachi; HM Shimizu; T Hirumachi; T Tsuchihashi; Watanabe, I
    JOURNAL OF APPLIED CRYSTALLOGRAPHY, Jun. 2003, [Reviewed]
  • Recent progress in the development of concave Fresnel lenses for neutrons
    T Adachi; K Ikeda; T Oku; K Sakai; S Suzuki; J Suzuki; HM Shimizu; KC Littrell; CK Loong; W Lin; J Guo; N Mitsuishi; S Morita; H Ohmori
    JOURNAL OF APPLIED CRYSTALLOGRAPHY, Jun. 2003, [Reviewed]
  • Development of neutron optical devices by a curved supermirror               
    K. Ikeda; T. Adachi; H. M. Shimizu; H. Sato; Y. Takizawa; T. Morishima; T. Shinohara; T. Oku; K. Sakai; Y. Kawabata; M. Hino; S. Tasaki
    KURRI Progress Report, Apr. 2003
  • Evaluation of the integrity of divertor models of tungsten or SiC/SiC composites joined with copper
    A. Kurumada; Y. Imamura; Y. Tomota; T. Oku; Y. Kubota; N. Noda
    Journal of Nuclear Materials, Mar. 2003, [Reviewed]
  • Development of neutron compound refractive optics: a progress report
    T Adachi; T Oku; S Morita; H Ohmori; Y Takizawa; HM Shimizu; J Suzuki; CK Loong; KC Littrell; R Goyette
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, Dec. 2002, [Reviewed]
  • Development of a two-dimensional imaging detector based on a neutron scintillator with wavelength-shifting fibers
    K Sakai; T Adachi; T Oku; A Gorin; T Ino; K Kuroda; Manuilov, I; K Morimoto; A Ryazantsev; HM Shimizu; J Suzuki; F Tokanai
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, Dec. 2002, [Reviewed]
  • Neutron-beam control using a magnetic doublet
    T Oku; T Adachi; K Sakai; HM Shimizu; K Sasaki; H Iwasa; T Kamiyama; Y Kiyanagi; T Ino; M Furusaka; J Suzuki; M Hino; S Tasaki; T Ebisawa
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, Dec. 2002, [Reviewed]
  • Development of superconducting tunnel junctions as an energy-dispersive detector for UV and visible photons
    C Otani; Y Takizawa; H Sato; K Ikeda; T Ikeda; K Kawai; H Miyasaka; T Morishima; T Oku; S Shiki; HM Shimizu; H Watanabe
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, Aug. 2002, [Reviewed]
  • X-ray spectroscopy in atomic collision experiment using superconducting tunnel junctions
    T Ikeda; Y Nakai; C Otani; H Sato; H Oyama; Y Kanai; Y Takizawa; Y Iwai; Y Morishita; T Oku; N Oshima; H Watanabe; H Miyasaka; K Kawai; H Kato; HM Shimizu; Y Yamazaki
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, Aug. 2002, [Reviewed]
  • Crystal growth and luminescence properties of Li2B4O7 single crystals doped with Ce, In, Ni, Cu and Ti ions
    N Senguttuvan; M Ishii; M Shimoyama; M Kobayashi; N Tsutsui; M Nikl; M Dusek; HM Shimizu; T Oku; T Adachi; K Sakai; J Suzuki
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Jun. 2002, [Reviewed]
  • High-sensitivity high-resolution dual-function signal and time digitizer
    S Sarwana; D Gupta; AF Kirichenko; T Oku; C Otani; H Sato; HM Shimizu
    APPLIED PHYSICS LETTERS, Mar. 2002, [Reviewed]
  • Development of scintillation imaging device for cold neutrons
    A Gorin; K Kuroda; Manuilov, I; K Morimoto; T Oku; A Ryazantsev; HM Shimizu; J Suzuki; F Tokanai
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Mar. 2002, [Reviewed]
  • Development of superconducting tunnel junctions for EUV detectors
    Y Takizawa; T Ikeda; T Oku; C Otani; K Kawai; H Sato; HM Shimizu; H Mikami; H Miyasaka; H Watanabe
    SURFACE REVIEW AND LETTERS, Feb. 2002, [Reviewed]
  • スピンエコー法を用いた極小角散乱測定:その原理と可能性
    奥 隆之; 安達 智宏; 清水 裕彦, The Japanese Society for Neutron Science
    波紋, 2002
  • Neutron beam control devices
    Oku Takayuki; Adachi Tomohiro; Ikeda Kazuaki, The Japanese Society for Neutron Science
    hamon, 2002
  • Development of superconducting tunnel junctions as energy-dispersive detectors for EUV radiation
    H Sato; T Ikeda; T Oku; C Otani; K Kawai; HM Shimizu; Y Takizawa; H Miyasaka; H Watanabe
    LOW TEMPERATURE DETECTORS, 2002, [Reviewed]
  • Development of neutron optical devices
    HM Shimizu; T Oku; T Adachi
    PHYSICA B-CONDENSED MATTER, Jan. 2002, [Reviewed]
  • Development of a Fresnel lens for cold neutrons based on neutron refractive optics
    T Oku; S Morita; S Moriyasu; Y Yamagata; H Ohmori; Y Takizawa; HM Shimizu; T Hirota; Y Kiyanagi; T Ino; M Furusaka; J Suzuki
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Apr. 2001, [Reviewed]
  • Development of superconducting tunnel junctions for ultra soft X-ray detectors
    Y Takizawa; T Ikeda; T Oku; C Otani; K Kawai; H Sato; HM Shimizu; H Miyasaka; H Watanabe; W Ootani; H Akou; H Nakagawa; M Aoyagi; T Taino
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, Mar. 2001, [Reviewed]
  • A microstrip-coil integration on superconducting tunnel junctions for X-ray detection
    T Taino; H Nakagawa; M Aoyagi; H Sato; H Akoh; K Maehata; K Ishibashi; H Sato; T Ikeda; C Otani; W Ootani; T Oku; H Kato; K Kawai; HM Shimizu; Y Takizawa; H Miyasaka; H Watanabe
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, Mar. 2001, [Reviewed]
  • Spectral features of substrate phonon events obtained by illuminating superconducting tunnel junctions with X-rays
    C Otani; T Ikeda; H Kato; K Kawai; H Miyasaka; T Oku; W Ootani; H Sato; HM Shimizu; Y Takizawa; H Watanabe; H Nakagawa; H Akoh; M Aoyagi; T Taino
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, Mar. 2001, [Reviewed]
  • Detection of heavy ions using Nb-based superconducting tunnel junction
    H Sato; T Ikeda; K Kawai; H Miyasaka; T Oku; W Ootani; C Otani; HM Shimizu; Y Takizawa; H Watanabe; K Morimoto; F Tokanai; H Akoh; H Nakagawa; M Aoyagi; T Taino
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, Mar. 2001
  • Detection of heavy ions by a superconducting tunnel junction
    H Sato; T Ikeda; K Kawai; H Miyasaka; T Oku; W Ootani; C Otani; HM Shimizu; Y Takizawa; H Watanabe; K Morimoto; F Tokanai
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Feb. 2001, [Reviewed]
  • A High-resolution X-ray Detection System using STJ and SQUID Amplifier
    Tokihiro Ikeda; H. Kato; H. Sato; K. Kawai; H. Miyasaka; T. Oku; W. Ootani; C. Otani; H. M. Shimizu; Y. Takizawa; H. Watanabe; H. Nakagawa; H. Akoh; M. Aoyagi; T. Taino
    IEEE Transactions on Applied Superconductivity, 2001, [Reviewed]
  • Development of neuron compound lens and prism based on neutron refractive optics
    T Adachi; T Oku; S Morita; S Moriyasu; Y Yamagata; H Ohmori; Y Takizawa; H Shimizu; T Hirota; Y Kiyanagi; T Ino; M Furusaka; J Suzuki
    NEUTRON OPTICS, 2001, [Reviewed]
  • Development of a magnetic lens and prism for cold neutron and their application to neutron scattering experiments
    T Oku; T Adachi; H Sato; C Otani; Y Takizawa; K Sakai; HM Shimizu; K Sasaki; H Iwasa; T Kamiyama; Y Kiyanagi; T Ino; M Furusaka; J Suzuki; M Hino; S Tasaki; T Ebisawa
    NEUTRON OPTICS, 2001, [Reviewed]
  • Improved fabrication method for Nb/Al/AIO(x)/Al/Nb superconducting tunnel junctions as X-ray detectors
    H Sato; Y Takizawa; W Oontani; T Ikeda; T Oku; C Otani; H Watanabe; K Kawai; H Miyasaka; H Kato; HM Shimizu; H Nakagawa; H Akoh; M Aoyagi; T Taino
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, Sep. 2000, [Reviewed]
  • Cold neutron imaging detection with a GSO scintillator
    F Tokanai; K Morimoto; T Oku; T Ino; J Suzuki; T Ikeda; W Ootani; C Otani; H Sato; HM Shimizu; Y Kiyanagi; T Hirota
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Sep. 2000, [Reviewed]
  • Neutron lens and prism
    T Oku; HM Shimizu
    PHYSICA B, Jun. 2000, [Reviewed]
  • High-resolution X-ray detectors based on superconducting tunnel junction with SQUID readout
    T Oku; T Ikeda; H Kato; K Kawai; H Miyasaka; W Ootani; C Otani; H Sato; HM Shimizu; Y Takizawa; H Watanabe; H Nakagawa; H Akoh; M Aoyagi; T Taino
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Apr. 2000, [Reviewed]
  • Development of X-ray detectors based on Nb/Al/AlOx/Al/Nb superconducting tunnel junctions
    W Ootani; T Ikeda; H Kato; K Kawai; H Miyasaka; T Oku; C Otani; H Sato; HM Shimizu; Y Takizawa; H Watanabe; H Nakagawa; H Akoh; M Aoyagi; T Taino
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Apr. 2000, [Reviewed]
  • Properties of substrate phonon events in superconducting tunnel junctions induced by X-ray absorption
    C Otani; T Ikeda; H Kato; K Kawai; H Miyasaka; T Oku; W Ootani; H Sato; HM Shimizu; Y Takizawa; H Watanabe; H Nakagawa; H Akoh; M Aoyagi; T Taino
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, Apr. 2000, [Reviewed]
  • A magnetic neutron lens
    HM Shimizu; T Oku; H Sato; C Otani; H Kato; Y Suda; H Nakagawa; T Kamiyama; Y Kiyanagi; T Wakabayashi
    PHYSICA B, Mar. 2000, [Reviewed]
  • A neutron prism
    T Oku; HM Shimizu
    PHYSICA B, Mar. 2000, [Reviewed]
  • 超伝導接合素子およびSQUIDアンプを用いたX線検出器               
    池田時浩; 清水裕彦; 加藤博; 川井和彦; 三上秀枝; 宮坂宏正; 奥隆之; 大谷航; 大谷知行; 佐藤広海; 滝澤慶之; 渡辺博
    低温工学会「超電導応用研究会」平成11年度講演論文集, 2000, [Reviewed]
  • Measurement of cold neutron-beam focusing effect of a permanent sextupole magnet
    HM Shimizu; Y Suda; T Oku; H Nakagawa; H Kato; T Kamiyama; C Otani; H Sato; T Wakabayashi; Y Kiyanagi
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Jul. 1999, [Reviewed]
  • Development of superconducting tunnel junctions with an aluminum-oxide insulation layer for X-ray detection
    H Sato; T Ikeda; H Kato; K Kawai; H Miyasaka; T Oku; W Ootani; C Otani; HM Shimizu; H Watanabe; H Nakagawa; H Akoh; M Aoyagi
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, Jun. 1999, [Reviewed]
  • Development of a compact system for high-resolution X-ray detection using a SQUID amplifier
    T Ikeda; H Kato; K Kawai; H Miyasaka; T Oku; W Ootani; C Otani; H Sato; HM Shimizu; H Watanabe; H Nakagawa; H Akoh; M Aoyagi; T Taino
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, Jun. 1999, [Reviewed]
  • 中性子散乱装置の小型化高機能化
    奥 隆之; 清水 裕彦, The Japanese Society for Neutron Science
    波紋, 1999
  • Development of Compact High-resolution X-ray Detector System using STJ and a SQUID Amplifier               
    T. Ikeda; H. Sato; H. Kato; K. Kawai; H. Miyasaka; T. Oku; W. Ootani; C. Ohtani; H.M. Shimizu; Y. Takizawa; H. Watanabe; H. Nakagawa; H. Akoh; M. Aoyagi; T. Taino
    Inst. Phys. Conf. Ser., 1999, [Reviewed]
  • DC and AC magnetization and small-angle neutron scattering studies of strongly interacting particle systems
    T Oku; E Ohta; T Sato; M Furusaka; M Imai; Y Matsushita
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, Oct. 1998, [Reviewed]
  • Cold neutron beam control using magnetic field gradient
    HM Shimizu; H Kato; T Oku; Y Suda; Y Ogawa; H Iwasa; T Kamiyama; Y Kiyanagi; T Wakabayashi
    PHYSICA B, Dec. 1997, [Reviewed]
  • Magnetic property and evaluation of MnZn-ferrite fine particles in Langmuir Blodgett film
    T Oku; M Ohwada; T Sato; E Ohta
    JOURNAL DE PHYSIQUE IV, Mar. 1997, [Reviewed]
  • Effect of neutron irradiation on the microstructures and tensile properties of different carbon fibers
    T Oku; Y Imamura; A Kurumada; K Kawamata; T Deto; S Suzuki; M Ichikawa
    SCIENCE REPORTS OF THE RESEARCH INSTITUTES TOHOKU UNIVERSITY SERIES A-PHYSICS CHEMISTRY AND METALLURGY, Mar. 1997, [Reviewed]
  • Quantum tunneling of magnetization in single domain CoFe2O4 particles
    T. Oku; H. Takano; M. Ohwada; T. Sato; E. Ohta, EDP Sciences
    Journal De Physique. IV : JP, 1997
  • Intraparticle structure in ultra-fine ZnFe2O4 particles               
    Yokoyama M; Oku T; Taniyama T; Sato T; Ohta E; Sato T; Haneda K; Itoh S; Takeda M; Yokoyama M; Oku T; Taniyama T; Sato T; Ohta E; Sato T; Haneda K; Itoh S; Takeda M
    KEK Progress Report, 1997, [Reviewed]
  • Magnetization process in helical-spin glass reentrant Cr0.81Mn0.19Ge studies by neutron depolarization analysis               
    T. Sato; T. Taniyama; T. Oku; S. Ito; M. Takeda
    Cryst. Res.& Technol., 1996, [Reviewed]
  • INTRAPARTICLE STRUCTURE IN ULTRA-FINE ZNFE2O4 PARTICLES
    M YOKOYAMA; T OKU; T TANIYAMA; T SATA; E OHTA; T SATO; K HANEDA; S ITOH; K KURAHASHI; M TAKEDA
    PHYSICA B, Aug. 1995, [Reviewed]
  • MAGNETIC-PROPERTIES OF FERROMAGNETIC FINE PARTICLES DISPERSED IN POLYMER
    T OKU; T SATO; E OHTA
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, Jul. 1995, [Reviewed]
  • HELICAL-SPIN-GLASS REENTRANT TRANSITION IN ITINERANT-ELECTRON TYPE MAGNET CR-1-XMN(X)GE
    T SATO; T ANDO; T OKU; M FURUSAKA
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, Feb. 1995, [Reviewed]
  • MOSSBAUER STUDY OF THE REENTRANT SPIN-GLASS PHASE OF NI76FE1MN23
    T SATO; T ANDO; T OKU; S MORIMOTO; A ITO
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, Feb. 1995, [Reviewed]
  • ITINERANT-ELECTRON-TYPE HELICAL-SPIN-GLASS REENTRANT TRANSITION IN CR0.81MN0.19GE
    T SATO; T ANDO; T OKU; M FURUSAKA
    PHYSICAL REVIEW B, May 1994, [Reviewed]
  • EVALUATION OF TOUGHNESS DEGRADATION BY SMALL PUNCH (SP) TESTS FOR NEUTRON-IRRADIATED 21/4CR-1MO STEEL
    M SUZUKI; M ETO; K FUKAYA; Y NISHIYAMA; T KODAIRA; T OKU; M ADACHI; A UMINO; TAKAHASHI, I; T MISAWA; Y HAMAGUCHI
    JOURNAL OF NUCLEAR MATERIALS, Mar. 1991, [Reviewed]

MISC

Lectures, oral presentations, etc.

Research Themes

Industrial Property Rights

  • 2007-128681, 2005-318621, 中性子偏極装置
    奥 隆之, 鈴木 淳市, not registered