Osamu Iwamoto

Profile Information

J-GLOBAL ID: 201801014746564049
researchmap Member ID: B000306113

Research Areas

Energy / Nuclear engineering /

Papers

159

Measurements of neutron total and capture cross sections of $^{139}$La and evaluation of resonance parameters

Endo Shunsuke, Kawamura Shiori*, Okudaira Takuya*, Yoshikawa Hiromoto*, Rovira Leveroni G., Kimura Atsushi, Nakamura Shoji, Iwamoto Osamu, Iwamoto Nobuyuki

European Physical Journal A, 59(12) 288\_1-288\_12, Dec, 2023 Peer-reviewed
Neutron total and capture cross-section measurements of $^{155}$Gd and $^{157}$Gd in the thermal energy region with the Li-glass detectors and NaI(Tl) spectrometer installed in J-PARC$\cdot$MLF$\cdot$ANNRI

Kimura Atsushi, Nakamura Shoji, Endo Shunsuke, Rovira Leveroni G., Iwamoto Osamu, Iwamoto Nobuyuki, Harada Hideo, Katabuchi Tatsuya*, Terada Kazushi*, Hori Junichi* …

Journal of Nuclear Science and Technology, 60(6) 678-696, Jun, 2023 Peer-reviewed
Nuclear many-body effects on particle emission following muon capture on <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Si</mml:mi><mml:mprescripts /><mml:none /><mml:mn>28</mml:mn></mml:mmultiscripts></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ca</mml:mi><mml:mprescripts /><mml:none /><mml:mn>40</mml:mn></mml:mmultiscripts></mml:math>

Futoshi Minato, Tomoya Naito, Osamu Iwamoto

Physical Review C, 107(5), May 31, 2023
Neutron Filtering System for Neutron Capture Cross Section Measurement at the ANNRI beamline of MLF/J-PARC

Gerard Rovira, Atsushi Kimura, Shoji Nakamura, Shunsuke Endo, Osamu Iwamoto, Nobuyuki Iwamoto, Tatsuya Katabuchi, Yu Kodama, Hideto Nakano, Jun-ichi Hori …

EPJ Web of Conferences, 284 06007-06007, May 26, 2023
Deuteron and alpha sub-libraries of JENDL-5

Nakayama Shinsuke, Iwamoto Osamu, Sublet J.-Ch.*

EPJ Web of Conferences, 284 14011\_1-14011\_4, May, 2023 Peer-reviewed
Simultaneous evaluation of uranium and plutonium fast neutron fission cross sections up to 200 MeV for JENDL-5 and its updates

Otsuka Naohiko*, Iwamoto Osamu

EPJ Web of Conferences, 284 08011\_1-08011\_4, May, 2023 Peer-reviewed
$^{241}$Am neutron capture cross section in the keV region using Si and Fe-filtered neutron beams

Rovira Leveroni G., Kimura Atsushi, Nakamura Shoji, Endo Shunsuke, Iwamoto Osamu, Iwamoto Nobuyuki, Katabuchi Tatsuya*, Kodama Yu*, Nakano Hideto*

Journal of Nuclear Science and Technology, 60(5) 489-499, May, 2023 Peer-reviewed
Fast-neutron capture cross section data measurement of minor actinides for development of nuclear transmutation systems

Tatsuya Katabuchi, Osamu Iwamoto, Jun-ich Hori, Atsushi Kimura, Nobuyuki Iwamoto, Shoji Nakamura, Gerard Rovira, Shunsuke Endo, Yuji Shibahara, Kazushi Terada …

EPJ Web of Conferences, 281 00014-00014, Mar 29, 2023 Peer-reviewed
Covariance of resonance parameters ascribed to systematic uncertainties in experiments

Endo Shunsuke, Kimura Atsushi, Nakamura Shoji, Iwamoto Osamu, Iwamoto Nobuyuki, Rovira Leveroni G.

EPJ Web of Conferences, 281 00012\_1-00012\_5, Mar, 2023 Peer-reviewed
Evaluation of covariance data in JENDL

Iwamoto Osamu

EPJ Web of Conferences, 281 00009\_1-00009\_4, Mar, 2023 Peer-reviewed
Japanese Evaluated Nuclear Data Library version 5: JENDL-5

Osamu Iwamoto, Nobuyuki Iwamoto, Satoshi Kunieda, Futoshi Minato, Shinsuke Nakayama, Yutaka Abe, Kohsuke Tsubakihara, Shin Okumura, Chikako Ishizuka, Tadashi Yoshida …

Journal of Nuclear Science and Technology, 60(1) 1-60, Feb 3, 2023 Peer-reviewed
Measurements of the neutron total and capture cross sections and derivation of the resonance parameters of $^{181}$Ta

Endo Shunsuke, Kimura Atsushi, Nakamura Shoji, Iwamoto Osamu, Iwamoto Nobuyuki, Rovira Leveroni G., Toh Yosuke, Segawa Mariko, Maeda Makoto

Nuclear Science and Engineering, 18, Jan, 2023 Peer-reviewed
$^{241}$Am neutron capture cross section measurement using the NaI(Tl) spectrometer of the ANNRI beamline of J-PARC

Rovira Leveroni G., Kimura Atsushi, Nakamura Shoji, Endo Shunsuke, Iwamoto Osamu, Iwamoto Nobuyuki, Katabuchi Tatsuya*, Kodama Yu*, Nakano Hideto*, Sato Yaoki*

Journal of Nuclear Science and Technology, 19, Jan, 2023 Peer-reviewed
General-purpose nuclear data library JENDL-5 and to the next

Osamu Iwamoto, Nobuyuki Iwamoto, Satoshi Kunieda, Futoshi Minato, Shinsuke Nakayama, Akira Ichihara, Atsushi Kimura, Shoji Nakamura, Shunsuke Endo, Yasunobu Nagaya …

European Physical Journal Web of Conferences, 284(14001) 1-7, 2023 Peer-reviewed
Estimation of double-differential cross-sections of $^9$Be(p,xn) reaction for new nuclear data library JENDL-5

Kunieda Satoshi, Yamamoto Kazuyoshi, Konno Chikara, Iwamoto Yosuke, Iwamoto Osamu, Wakabayashi Yasuo*, Ikeda Yujiro*

Journal of Neutron Research, 24(3-4) 329-335, Jan, 2023 Peer-reviewed
Collaboration with Dr. Efrem Sh. Soukhovitsukii; Our fortuitous experiences on optical model analysis, his contribution to nuclear data activities of Japan and a posthumous study on light-nuclei

Kunieda Satoshi, Iwamoto Osamu, Fukahori Tokio, Chiba Satoshi*

European Physical Journal A, 59(1) 2\_1-2\_8, Jan, 2023 Peer-reviewed
Calculation of recoil nucleus spectrum in the presence of multi-particle emission in nuclear reaction with Monte Carlo method as an extension of CCONE code

Iwamoto Osamu

Journal of Nuclear Science and Technology, 59(10) 1232-1241, Oct, 2022 Peer-reviewed
EXFOR-based simultaneous evaluation of neutron-induced uranium and plutonium fission cross sections for JENDL-5

Otsuka Naohiko*, Iwamoto Osamu

Journal of Nuclear Science and Technology, 59(8) 1004-1036, Aug, 2022 Peer-reviewed
KeV-neutron capture cross-section measurement of ¹⁹⁷Au with a Cr-filtered neutron beam at the ANNRI beamline of MLF/J-PARC

Gerard Rovira, Atsushi Kimura, Shoji Nakamura, Shunsuke Endo, Osamu Iwamoto, Nobuyuki Iwamoto, Tatsuya Katabuchi, Yu Kodama, Hideto Nakano, Yaoki Sato …

Journal of Nuclear Science and Technology, 59(5) 647-655, May 4, 2022
G-HyND: a hybrid nuclear data estimator with Gaussian processes

Hiroki Iwamoto, Osamu Iwamoto, Satoshi Kunieda

Journal of Nuclear Science and Technology, 59(3) 334-344, Mar 4, 2022

Misc.

Report on the 35th Meeting of Working Party on International Nuclear Data Evaluation Co-operation (WPEC)

Iwamoto Osamu, Iwamoto Nobuyuki, Kimura Atsushi, Tada Kenichi, Yokoyama Kenji

Kaku Deta Nyusu (Internet), (136) 6, Oct, 2023
60th Anniversary of the Sigma Committee; Thoughts on the 60th Anniversary of the Sigma Committee

Iwamoto Osamu

Kaku Deta Nyusu (Internet), (134) 32-33, Feb, 2023
Outline of JENDL-5

Iwamoto Osamu

JAEA-Conf 2022-001, 21-26, Nov, 2022
$^{241}$Am neutron capture cross section measurement and resonance analysis

Rovira Leveroni G., Kimura Atsushi, Nakamura Shoji, Endo Shunsuke, Iwamoto Osamu, Iwamoto Nobuyuki, Katabuchi Tatsuya*, Kodama Yu*, Nakano Hideto*, Sato Yaoki*

JAEA-Conf 2022-001, 91-96, Nov, 2022
Reduction and resource recycling of high-level liquid radioactive waste through nuclear transmutation, 4; ImPACT/LLFP-2018: A New nuclear data library for a challenge on transmutation of long-lived fission products

Kunieda Satoshi, Furutachi Naoya*, Minato Futoshi, Iwamoto Nobuyuki, Iwamoto Osamu

NEA/NSC/R(2020)4 (Internet), 329-331, Oct, 2022
Report on the 34th Meeting of Working Party on International Nuclear Data Evaluation Co-operation (WPEC)

Iwamoto Osamu, Iwamoto Nobuyuki, Kimura Atsushi, Tada Kenichi, Sugawara Takanori, Yokoyama Kenji

Kaku Deta Nyusu (Internet), (133) 1-6, Oct, 2022
Release of the latest general-purpose nuclear data library JENDL-5

Iwamoto Osamu

Isotope News, (783) 2-5, Oct, 2022
Calculation of deuteron-induced reaction cross-sections for nuclear transmutation of long-lived fission products

Nakayama Shinsuke, Furutachi Naoya, Iwamoto Osamu, Watanabe Yukinobu*

NEA/NSC/R(2020)4 (Internet), 345-349, Oct, 2022
EXFOR-based simultaneous evaluation of neutron-induced uranium and plutonium fission cross sections for JENDL-5; Inputs and outputs

Otsuka Naohiko*, Iwamoto Osamu

JAEA-Data/Code 2022-005, 102, Oct, 2022
Completion of JENDL-5 and prospects for its application to numerical analysis, 1; Overview of JENDL-5

Iwamoto Osamu

Kaku Deta Nyusu (Internet), (132) 1-8, Jun, 2022
Neutron filtering system for fast neutron cross-section measurement at ANNRI

Rovira Leveroni G., Iwamoto Osamu, Kimura Atsushi, Nakamura Shoji, Iwamoto Nobuyuki, Endo Shunsuke, Katabuchi Tatsuya*, Terada Kazushi*, Kodama Yu*, Nakano Hideto* …

JAEA-Conf 2021-001, 156-161, Mar, 2022
Report of 33rd Meeting of the Working Party on International Nuclear Data Evaluation Co-operation (WPEC)

Iwamoto Osamu, Iwamoto Nobuyuki, Kimura Atsushi, Tada Kenichi

Kaku Deta Nyusu (Internet), (130) 9-15, Oct, 2021
Measurement result of an angular dependence of γ-rays emitted by the ¹¹⁷Sn(n, γ) reactions

古賀淳, 安部亮太, 石崎貢平, 井出郁央, 伊東佑起, 猪野隆, 岩本修, 遠藤駿典, 遠藤駿典, 緒方一介 …

日本物理学会講演概要集(CD-ROM), 76(1), 2021
Study of ¹³¹Xe(n,γ) reaction for T-violation search

谷結以花, 安部亮太, 石崎貢平, 井出郁央, 伊東佑起, 猪野隆, 岩本修, 遠藤駿典, 遠藤駿典, 緒方一介 …

日本物理学会講演概要集(CD-ROM), 76(1), 2021
Development of A Hybrid Nuclear Data Estimator with Gaussian Processes

岩元大樹, 岩本修, 国枝賢

日本原子力学会秋の大会予稿集(CD-ROM), 2021, 2021
Neutron capture cross section measurement of minor actinides in fast neutron energy region for study on nuclear transmutation system

Katabuchi Tatsuya*, Hori Junichi*, Iwamoto Nobuyuki, Iwamoto Osamu, Kimura Atsushi, Nakamura Shoji, Shibahara Yuji*, Terada Kazushi*, Tosaka Kenichi*, Endo Shunsuke …

JAEA-Conf 2020-001, 5-9, Dec, 2020
Recent progress and future plan on the JENDL project

Iwamoto Osamu

JAEA-Conf 2020-001, 11-16, Dec, 2020
Proceedings of the 2019 Symposium on Nuclear Data; November 28-30, 2019, Kyushu University, Chikushi Campus, Fukuoka, Japan

Watanabe Yukinobu*, Shigyo Nobuhiro*, Kin Tadahiro*, Iwamoto Osamu

JAEA-Conf 2020-001, 236, Dec, 2020
Report of 32nd Meeting of the Working Party on International Nuclear Data Evaluation Co-operation (WPEC)

Iwamoto Osamu, Iwamoto Nobuyuki, Kimura Atsushi, Tada Kenichi

Kaku Deta Nyusu (Internet), (127) 1-10, Oct, 2020
JENDL project and related activities

Tada Kenichi, Iwamoto Osamu

Proceedings of 2019 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2019), Vol.2, 1622-1624, Aug, 2020

Presentations

133

Determination of neutron-induced cross sections using surrogate reaction, 1; Plan and measurement

Nishio Katsuhisa, Iwamoto Osamu, Makii Hiroyuki, Hirose Kentaro, Orlandi R., Suzaki Fumi, Tsukada Kazuaki, Asai Masato, Smallcombe J.

日本原子力学会2024年春の年会
A Study of statistical properties of compound nucleus using partial gamma width of $^{182}$Ta

Kawamura Shiori*, Endo Shunsuke, Iwamoto Osamu, Iwamoto Nobuyuki, Kimura Atsushi, Kitaguchi Masaaki*, Nakamura Shoji, Okudaira Takuya*, Rovira Leveroni G., Shimizu Hirohiko*, Yoshikawa Hiromoto*

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
Development of nuclear data evaluation framework for innovative reactor(II), 1; Overview

Hori Junichi*, Iwamoto Osamu, Katabuchi Tatsuya*, Sano Tadafumi*, Kimura Atsushi, Nakayama Shinsuke, Terada Kazushi*

日本原子力学会2024年春の年会
Development and validation of evaluated nuclear data library JENDL

Iwamoto Osamu

日本原子力学会2024年春の年会
Determination of neutron-induced cross sections using surrogate reaction, 2; Calculation of decay probabilities on neutron-induced and nucleon-transfer reactions

Iwamoto Osamu, Orlandi R., Nishio Katsuhisa

日本原子力学会2024年春の年会
Development of nuclear data evaluation framework for innovative reactor (II), 5; Development of evaluated nuclear data files

Nakayama Shinsuke, Iwamoto Osamu

日本原子力学会2024年春の年会
Efforts of JENDL development so far

Iwamoto Osamu

日本原子力学会シグマ調査専門委員"将来の核データ"ワークショップ「原子炉と規制」
Development of JENDL-5 and future perspective

Iwamoto Osamu

The 2023 Fall Meeting of the Division of Nuclear Physics of the American Physical Society and Physical Society of Japan (Hawaii 2023); 6th Joint Meeting
Effects of two-particle two-hole configurations on particle emissions following muon capture

Minato Futoshi*, Naito Tomoya*, Iwamoto Osamu

The 2023 Fall Meeting of the Division of Nuclear Physics of the American Physical Society and Physical Society of Japan (Hawaii 2023); 6th Joint Meeting
Development of JENDL-5 and future perspective

Iwamoto Osamu

The 2023 Fall Meeting of the Division of Nuclear Physics of the American Physical Society and Physical Society of Japan
Effects of two-particle two-hole configurations on particle emissions following muon capture

Minato Futoshi*, Naito Tomoya*, Iwamoto Osamu

The 2023 Fall Meeting of the Division of Nuclear Physics of the American Physical Society and Physical Society of Japan
Development of measurement method for an absolute value of resonance energy

Endo Shunsuke, Kawamura Shiori*, Tsuchikawa Yusuke, Mishima Kenji*, Kimura Atsushi, Nakamura Shoji, Iwamoto Osamu, Iwamoto Nobuyuki, Rovira Leveroni G.

日本原子力学会2023年秋の大会
Neutron capture cross section measurement of $^{129}$I and $^{127}$I using ANNRI at MLF/J-PARC

Rovira Leveroni G., Kimura Atsushi, Nakamura Shoji, Endo Shunsuke, Iwamoto Osamu, Iwamoto Nobuyuki, Toh Yosuke, Segawa Mariko, Maeda Makoto, Katabuchi Tatsuya*

日本原子力学会2023年秋の大会
Expectations for theoretical nuclear physics from the field of nuclear data

Iwamoto Osamu

九州大学理論核物理研究会「現代核物理の広がりと展望」
Overview of JENDL-5

Iwamoto Osamu

Technical Meeting on the International Network of Nuclear Reaction Data Centres
Status of JENDL

Iwamoto Osamu, Tada Kenichi

35th Meeting of the Working Party on International Nuclear Data Evaluation Co-operation (WPEC)
Professor Chiba, JENDL and I; To the memorial of the retirement of Professor Satoshi Chiba

Iwamoto Osamu

千葉敏教授退職記念研究会
Development of nuclear data evaluation framework for innovative reactor, 1; Project overview

Hori Junichi*, Iwamoto Osamu, Katabuchi Tatsuya*, Sano Tadafumi*

日本原子力学会2023年春の年会
Measurement of the gamma-ray distribution and estimation of the total angular momentum of resonances in $^{181}$Ta(n,$\gamma$)$^{182}$Ta

Kawamura Shiori*, Endo Shunsuke, Iwamoto Osamu, Iwamoto Nobuyuki, Kimura Atsushi, Kitaguchi Masaaki*, Nakamura Shoji, Okudaira Takuya*, Rovira Leveroni G., Shimizu Hirohiko*, Yoshikawa Hiromoto*

日本物理学会2023年春季大会
Development of nuclear data evaluation framework for innovative reactor, 6; Study of evaluation methods for thermal neutron scattering law and charged-particle emission reaction cross section

Nakayama Shinsuke, Iwamoto Osamu

日本原子力学会2023年春の年会

Research Projects

核分裂事象の物理解明による高度原子力利用のためのデータ基盤開発

科学研究費助成事業, 基盤研究(B), 日本学術振興会, Apr, 2021 - Mar, 2024

石塚知香子, 湊太志, 千葉敏, 岩本修
Pioneering Research on Manufacturability of Radionuclides for Nuclear Medicine by Fast Neutrons

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, 2011 - 2013

IWAMOTO NOBUYUKI, IWAMOTO Osamu
Development of a calculation code system for neutron and deuteron induced reactions including breakup processes

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, 2010 - 2012

WATANABE Yukinobu, OGATA Kazuyuki, IWAMOTO Osamu, GAO Hairui, NAKAYAMA Shinsuke
アクチニド原子核に対する核反応モデル計算の予測精度の研究

科学研究費助成事業, 若手研究(B), 日本学術振興会, 2004 - 2006

岩本修

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