Motoki Ooi - My portal

Profile Information

Affiliation: Japan Atomic Energy Agency

J-GLOBAL ID: 202101008753611830
researchmap Member ID: R000017404

Research Areas

Energy / Quantum beam science /

Papers

Design and actual performance of J-PARC 3 GeV rapid cycling synchrotron for high-intensity operation

Yamamoto Kazami, Kinsho Michikazu, Hayashi Naoki, Saha P. K., Tamura Fumihiko, Yamamoto Masanobu, Tani Norio, Takayanagi Tomohiro, Kamiya Junichiro, Shobuda Yoshihiro …

Journal of Nuclear Science and Technology, 59(9) 32-1205, Feb, 2022 Peer-reviewed
Experimental characterization of high-energy component in extracted pulsed neutrons at the J-PARC spallation neutron source

Harada Masahide, Teshigawara Makoto, Oi Motoki, Oikawa Kenichi, Takada Hiroshi, Ikeda Yujiro

Nuclear Instruments and Methods in Physics Research A, 1000 165252\_1-165252\_8, Jun, 2021 Peer-reviewed
Upgrade history and present status of the general control system for the Materials and Life Science Experimental Facility at J-PARC

Sakai Kenji, Oi Motoki, Haga Katsuhiro, Kai Tetsuya, Nakatani Takeshi, Kobayashi Yasuo*, Watanabe Akihiko*

JPS Conference Proceedings (Internet), 33 011151\_1-011151\_6, Mar, 2021 Peer-reviewed
Conceptual design of an abnormality sign determination system for the general control system of the Materials and Life Science Experimental Facility at J-PARC

Sakai Kenji, Oi Motoki, Teshigawara Makoto, Naoe Takashi, Haga Katsuhiro, Watanabe Akihiko*

Journal of Neutron Research, 22(2-3) 337-343, Oct, 2020 Peer-reviewed
Two-parameter model for optimizing target beam distribution with an octupole magnet

Meigo Shinichiro, Oi Motoki, Fujimori Hiroshi*

Physical Review Accelerators and Beams (Internet), 23(6) 062802\_1-062802\_24, Jun, 2020 Peer-reviewed
The Energy-resolved neutron imaging system, RADEN

Shinohara Takenao, Kai Tetsuya, Oikawa Kenichi, Nakatani Takeshi, Segawa Mariko, Hiroi Kosuke, Su Y., Oi Motoki, Harada Masahide, Iikura Hiroshi …

Review of Scientific Instruments, 91(4) 043302\_1-043302\_20, Apr, 2020 Peer-reviewed
Study on B$_{4}$C decoupler with burn-up reduction aiming at 1-MW pulsed neutron source

Oi Motoki, Teshigawara Makoto, Harada Masahide, Ikeda Yujiro

Journal of Nuclear Science and Technology, 56(7) 573-579, Jul, 2019 Peer-reviewed
Measurement of neutron scattering cross section of nano-diamond with particle diameter of approximately 5 nm in energy range of 0.2 meV to 100 meV

Teshigawara Makoto, Tsuchikawa Yusuke*, Ichikawa Go*, Takata Shinichi, Mishima Kenji*, Harada Masahide, Oi Motoki, Kawamura Yukihiko*, Kai Tetsuya, Kawamura Seiko …

Nuclear Instruments and Methods in Physics Research A, 929 113-120, Jun, 2019 Peer-reviewed
Experimental validation of the brightness distribution on the surfaces of coupled and decoupled moderators composed of 99.8\% parahydrogen at the J-PARC pulsed spallation neutron source

Harada Masahide, Teshigawara Makoto, Oi Motoki, Klinkby E.*, Zanini L.*, Batkov K.*, Oikawa Kenichi, Toh Yosuke, Kimura Atsushi, Ikeda Yujiro

Nuclear Instruments and Methods in Physics Research A, 903 38-45, Sep, 2018 Peer-reviewed
Recent issues encountered by AMATERAS; A Cold-neutron disk-chopper spectrometer

Nakajima Kenji, Kawamura Seiko, Kikuchi Tatsuya*, Kofu Maiko, Kawakita Yukinobu, Inamura Yasuhiro, Kambara Wataru*, Aoyama Kazuhiro*, Wakai Daisuke*, Harada Masahide …

Journal of Physics; Conference Series, 1021(1) 012031\_1-012031\_5, Jun, 2018 Peer-reviewed
Present fabrication status of spare moderators and reflector in J-PARC spallation neutron source

Teshigawara Makoto, Harada Masahide, Oi Motoki, Takada Hiroshi

Journal of Physics; Conference Series, 1021(1) 012061\_1-012061\_4, Jun, 2018 Peer-reviewed
Off-gas processing system operations for mercury target vessel replacement at J-PARC

Kai Tetsuya, Uchida Toshitsugu, Kinoshita Hidetaka, Seki Masakazu, Oi Motoki, Wakui Takashi, Haga Katsuhiro, Kasugai Yoshimi, Takada Hiroshi

Journal of Physics; Conference Series, 1021(1) 012042\_1-012042\_4, Jun, 2018 Peer-reviewed
Measurements of neutronic characteristics of rectangular and cylindrical coupled hydrogen moderators

Kai Tetsuya, Kamiyama Takashi*, Hiraga Fujio*, Oi Motoki, Hirota Katsuya*, Kiyanagi Yoshiaki*

Journal of Nuclear Science and Technology, 55(3) 283-289, Mar, 2018 Peer-reviewed
Implementation of a low-activation Au-In-Cd decoupler into the J-PARC 1 MW short pulsed spallation neutron source

Teshigawara Makoto, Ikeda Yujiro, Oi Motoki, Harada Masahide, Takada Hiroshi, Kakishiro Masanori*, Noguchi Gaku*, Shimada Tsubasa*, Seita Kyoichi*, Murashima Daisuke* …

Nuclear Materials and Energy (Internet), 14 14-21, Jan, 2018 Peer-reviewed
Materials and Life Science Experimental Facility at the Japan Proton Accelerator Research Complex, 1; Pulsed spallation neutron source

Takada Hiroshi, Haga Katsuhiro, Teshigawara Makoto, Aso Tomokazu, Meigo Shinichiro, Kogawa Hiroyuki, Naoe Takashi, Wakui Takashi, Oi Motoki, Harada Masahide …

Quantum Beam Science (Internet), 1(2) 8\_1-8\_26, Sep, 2017 Peer-reviewed
Final design of the energy-resolved neutron imaging system "RADEN" at J-PARC

Shinohara Takenao, Kai Tetsuya, Oikawa Kenichi, Segawa Mariko, Harada Masahide, Nakatani Takeshi, Oi Motoki, Aizawa Kazuya, Sato Hirotaka*, Kamiyama Takashi* …

Journal of Physics; Conference Series, 746 012007\_1-012007\_6, Jan, 2016 Peer-reviewed
Research and development of high intensity beam transport to the target facilities at J-PARC

Meigo Shinichiro, Oi Motoki, Ikezaki Kiyomi*, Kawasaki Tomoyuki, Kinoshita Hidetaka, Akutsu Atsushi*, Nishikawa Masaaki*, Fukuda Shimpei

Proceedings of 12th International Topical Meeting on Nuclear Applications of Accelerators (AccApp '15), 255-260, Jan, 2016 Peer-reviewed
Update status of the J-PARC 3NBT control system

Oi Motoki, Meigo Shinichiro, Akutsu Atsushi*, Kawasaki Tomoyuki, Nishikawa Masaaki*, Fukuda Shimpei

Proceedings of 12th International Topical Meeting on Nuclear Applications of Accelerators (AccApp '15), 89-96, Jan, 2016 Peer-reviewed
Upgrade of monitoring and operation systems for the MLF-GCS base on EPICS and CSS

Oi Motoki, Sakai Kenji, Watanabe Akihiko, Akutsu Atsushi, Meigo Shinichiro, Takada Hiroshi

JPS Conference Proceedings (Internet), 8 036007\_1-036007\_5, Sep, 2015 Peer-reviewed
Custom-made shutter block for imaging instrument "RADEN" at J-PARC

Oikawa Kenichi, Harada Masahide, Shinohara Takenao, Kai Tetsuya, Oi Motoki, Kiyanagi Yoshiaki*

JPS Conference Proceedings (Internet), 8 036002\_1-036002\_5, Sep, 2015 Peer-reviewed

Misc.

Research and development of low activation neutron absorber Au-In-Cd alloy at J-PARC Material and Life Science Experimental Facility

Oi Motoki

Shiki, 43-3, Jun, 2019
Progress of general control system for Materials and Life Science Experimental Facility at J-PARC

Sakai Kenji, Oi Motoki, Takada Hiroshi, Kai Tetsuya, Nakatani Takeshi, Kobayashi Yasuo*, Watanabe Akihiko*

JAEA-Technology 2018-011, 57, Jan, 2019
Measurement of high-energy neutron fluxes and spectra around the J-PARC mercury spallation neutron target using multi-foil activation method

Kasugai Yoshimi, Harada Masahide, Kai Tetsuya, Oi Motoki, Meigo Shinichiro, Maekawa Fujio

JAEA-Data/Code 2015-033, 28, Mar, 2016
Progress of the general control system for the Materials and Life Science Experimental Facility in J-PARC

Sakai Kenji, Oi Motoki, Watanabe Akihiko, Kai Tetsuya, Kato Yuko, Meigo Shinichiro, Takada Hiroshi

JAEA-Conf 2015-002, 593-598, Feb, 2016
Increment of the machine protection system in J-PARC rapid cycling synchrotron

Yamamoto Kazami, Kawase Masato, Iwama Yuhei, Fukuta Shimpei, Kato Yuko, Ouchi Nobuo, Meigo Shinichiro, Oi Motoki, Kamikubota Norihiko*

Proceedings of 11th Annual Meeting of Particle Accelerator Society of Japan (Internet), 771-774, Oct, 2014
Upgrade of general control system employed for Materials and Life Science Experimental Facility of J-PARC

Watanabe Akihiko, Sakai Kenji, Oi Motoki, Meigo Shinichiro, Takada Hiroshi

JAEA-Technology 2013-028, (2013-028) 21, Nov, 2013
Development of MLF-inhibit system for J-PARC

Ishiyama Tatsuya, Ito Yuichi, Kikuzawa Nobuhiro, Suzuki Takahiro, Oi Motoki, Meigo Shinichiro, Sakai Kenji, Kato Yuko

Proceedings of 9th Annual Meeting of Particle Accelerator Society of Japan (Internet), 714-716, Aug, 2013
Influence of Great East Japan Earthquake on neutron target station in J-PARC

Sakai Kenji, Futakawa Masatoshi, Takada Hiroshi, Sakamoto Shinichi, Maekawa Fujio, Kinoshita Hidetaka, Seki Masakazu, Haga Katsuhiro, Kogawa Hiroyuki, Wakui Takashi …

Proceedings of 20th Meeting of the International Collaboration on Advanced Neutron Sources (ICANS-20) (USB Flash Drive), 6, Mar, 2012
Influence of Great East Japan Earthquake on neutron source station in J-PARC

Sakai Kenji, Sakamoto Shinichi, Kinoshita Hidetaka, Seki Masakazu, Haga Katsuhiro, Kogawa Hiroyuki, Wakui Takashi, Naoe Takashi, Kasugai Yoshimi, Tatsumoto Hideki …

JAEA-Technology 2011-039, (2011-039) 121, Mar, 2012
Feasibility study on visualization of transient phenomena using high resolution on-line neutron imaging system at J-PARC

Segawa Mariko, Kai Tetsuya, Oi Motoki, Takamine Jun, Kureta Masatoshi

Proceedings of 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference (2011 NSS/MIC) (DVD-ROM), 385-392, Jan, 2011
Imaging experiments on NOBORU at MLF

Harada Masahide, Oikawa Kenichi, Oi Motoki, Kai Tetsuya, Sakai Kenji, Maekawa Fujio, Watanabe Noboru*, Shinohara Takenao, Takata Shinichi

Proceedings of 19th Meeting of the International Collaboration on Advanced Neutron Sources (ICANS-19) (CD-ROM), 10, Jul, 2010
Distinctive features in neutronic performance of JSNS

Maekawa Fujio, Oikawa Kenichi, Harada Masahide, Teshigawara Makoto, Kai Tetsuya, Kasugai Yoshimi, Meigo Shinichiro, Oi Motoki, Futakawa Masatoshi, Watanabe Noboru* …

Proceedings of 19th Meeting of the International Collaboration on Advanced Neutron Sources (ICANS-19) (CD-ROM), 8, Jul, 2010
Commissioning of operation and control for Materials and Life Science Experimental Facility (MLF) in J-PARC

Sakai Kenji, Oi Motoki, Kai Tetsuya, Watanabe Akihiko

JAEA-Technology 2010-001, 35, Feb, 2010
Design, construction and operation of general control system of Materials and Life Science Experimental Facility (MLF-GCS) in J-PARC

Sakai Kenji, Oi Motoki, Kai Tetsuya, Watanabe Akihiko, Nakatani Takeshi, Higemoto Wataru, Shimomura Koichiro*, Kinoshita Hidetaka, Kaminaga Masanori

JAEA-Technology 2009-042, 44, Aug, 2009
Experimental program at a neutron beam line {\it NOBORU} in JSNS

Maekawa Fujio, Oikawa Kenichi, Harada Masahide, Kai Tetsuya, Meigo Shinichiro, Kasugai Yoshimi, Oi Motoki, Sakai Kenji, Teshigawara Makoto, Hasegawa Shoichi …

Proceedings of 18th Meeting of the International Collaboration on Advanced Neutron Sources (ICANS-18) (CD-ROM), 118-126, Jan, 2007
Development of EPICS system for 3NBT proton beam monitor system

Oi Motoki, Meigo Shinichiro

JAERI-Tech 2005-025, 52, Mar, 2005

Presentations

106

Measurement of cross sections for hydrogenous materials

Harada Masahide, Abe Yutaka*, Oikawa Kenichi, Tsuchikawa Yusuke, Kawamura Seiko, Inamura Yasuhiro, Teshigawara Makoto, Oi Motoki, Yamaguchi Yuji, Ikeda Yujiro*

2023年度量子ビームサイエンスフェスタ; 第15回MLFシンポジウム, 第41回PFシンポジウム
Life cycle of the proton beam window in J-PARC MLF

Oi Motoki, Yamaguchi Yuji, Kinoshita Hidetaka, Meigo Shinichiro, Haga Katsuhiro

8th High Power Targetry Workshop (HPTW2023)
Development of boron-containing Al-based thermal neutron absorber for MW class neutron source

Okutomi Toshifumi*, Teshigawara Makoto, Harada Masahide, Oi Motoki, Yamaguchi Yuji, Kuramoto Shigeru*

日本中性子科学会第23回年会(JSNS2023)
Irradiation test for material of proton beam window at MLF

Yamaguchi Yuji, Meigo Shinichiro, Okubo Nariaki, Oi Motoki

2022年度量子ビームサイエンスフェスタ; 第14回MLFシンポジウム/第40回PFシンポジウム
Development of thermal neutron absorber material based on boron using distributed pre-decoupler effect for spallation neutron source of J-PARC

Okutomi Toshifumi*, Teshigawara Makoto, Harada Masahide, Oi Motoki, Kuramoto Shigeru*

2022年度量子ビームサイエンスフェスタ; 第14回MLFシンポジウム/第40回PFシンポジウム
Measurement of cross sections for hydrogenous materials

Harada Masahide, Abe Yutaka*, Oikawa Kenichi, Kawamura Seiko, Inamura Yasuhiro, Teshigawara Makoto, Oi Motoki, Ikeda Yujiro*

2022年度量子ビームサイエンスフェスタ; 第14回MLFシンポジウム/第40回PFシンポジウム
Remote handling test of Moderators and Reflector in J-PARC MLF

Oi Motoki, Yamaguchi Yuji, Teshigawara Makoto, Naoe Takashi, Kikuchi Yoshinori*, Yasuhara Toshiyuki*, Saruta Koichi, Kinoshita Hidetaka, Harada Masahide

2022年度量子ビームサイエンスフェスタ; 第14回MLFシンポジウム/第40回PFシンポジウム
Measurement of delayed neutrons from J-PARC spallation neutron source

Harada Masahide, Teshigawara Makoto, Oi Motoki, Yamaguchi Yuji, Oikawa Kenichi, Tsuchikawa Yusuke, Haga Katsuhiro

日本原子力学会2023年春の年会
Neutron-induced cross-section measurement of hydrogen containing materials at 20 $\sim$ 300 K; o-xylene, m-xylene and p-xylene

Harada Masahide, Abe Yutaka*, Teshigawara Makoto, Oi Motoki, Ikeda Yujiro*, Oikawa Kenichi, Kawamura Seiko, Inamura Yasuhiro

日本原子力学会2022年秋の大会
Measurement of cross sections for hydrogenous materials

Harada Masahide, Abe Yutaka*, Oikawa Kenichi, Kawamura Seiko, Inamura Yasuhiro, Teshigawara Makoto, Oi Motoki, Ikeda Yujiro*

2021年度量子ビームサイエンスフェスタ; 第13回MLFシンポジウム/第39回PFシンポジウム
Cross section measurement of hydrogen containing materials at 20 $\sim$ 300 K; Methanol, benzene and toluene

Harada Masahide, Abe Yutaka*, Teshigawara Makoto, Oi Motoki, Ikeda Yujiro*, Oikawa Kenichi, Kawamura Seiko, Inamura Yasuhiro

日本原子力学会2022年春の年会
Resent status of decoupler development for MLF neutron source

Oi Motoki, Inoue Hiromi*, Teshigawara Makoto, Harada Masahide, Ikeda Yujiro*

2021年度量子ビームサイエンスフェスタ; 第13回MLFシンポジウム/第39回PFシンポジウム
Current status of NOBORU at MLF BL10

Oikawa Kenichi, Harada Masahide, Oku Takayuki, Sakai Kenji, Oi Motoki, Kai Tetsuya, Shinohara Takenao

2021年度量子ビームサイエンスフェスタ; 第13回MLFシンポジウム/第39回PFシンポジウム
Beam loss monitor using nuclear reaction with high threshold-energy in the vicinity of J-PARC muon target

Yamaguchi Yuji, Meigo Shinichiro, Oi Motoki, Harada Masahide, Haga Katsuhiro

第18回日本加速器学会年会
Performance of the high intense spallation neutron source

Harada Masahide, Teshigawara Makoto, Oi Motoki, Oikawa Kenichi

日本物理学会第76回年次大会
Measurement of cross sections for hydrogenous materials

Harada Masahide, Abe Yutaka*, Oikawa Kenichi, Kawasaki Takuro, Kawamura Seiko, Nakajima Kenji, Inamura Yasuhiro, Takahashi Ryuta*, Teshigawara Makoto, Oi Motoki, Ikeda Yujiro

2020年度量子ビームサイエンスフェスタ; 第12回MLFシンポジウム/第38回PFシンポジウム
Proton beam control technology for high-intensity pulsed neutron production

Meigo Shinichiro, Oi Motoki, Fujimori Hiroshi*, Sakamoto Shinichi*

日本中性子科学会第20回年会(JSNS 2020)
Decoupler development at J-PARC neutron source facility

Oi Motoki, Harada Masahide, Teshigawara Makoto

3rd Asia-Oceania Conference on Neutron Scattering (AOCNS 2019)
Cross section measurement of hydrogen containing materials, 1; Light water and ethanol

Harada Masahide, Abe Yutaka*, Teshigawara Makoto, Oi Motoki, Ikeda Yujiro, Oikawa Kenichi, Nakajima Kenji, Kawamura Seiko

日本原子力学会2019年秋の大会
Measurement of high energy neutron intensity and distribution at a neutron- instrument of the J-PARC spallation-neutron-source

Harada Masahide, Teshigawara Makoto, Oi Motoki, Oikawa Kenichi, Ikeda Yujiro

日本原子力学会2019年春の年会

Research Projects

中性子共鳴反応による偏極希ガスの中性子偏極能力検証と応用

基盤研究（Ｃ）

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