Nobuyuki Iwamoto

Profile Information

Affiliation: Japan Atomic Energy Agency

J-GLOBAL ID: 200901036901723500
researchmap Member ID: 5000101349

Research Interests

Research Areas

Committee Memberships

Jun, 2023 - May, 2026

プログラム編成ワーキンググループメンバー, 日本原子力学会
Jul, 2013 - Jun, 2016

企画委員会委員, 日本原子力学会

Awards

Oct, 2023

理事長表彰研究開発功績賞（団体）, 核データライブラリJENDL-5の完成, 日本原子力研究開発機構
Oct, 2020

理事長表彰研究開発功績賞（団体）, 長寿命核分裂生成物核変換断面積ファイルの開発, 日本原子力研究開発機構
Oct, 2018

理事長表彰研究開発功績賞（団体）, 放射化法による熱中性子捕獲断面積データの解析手法の高度化, 日本原子力研究開発機構
Mar, 2018

The Journal of Nuclear Science and Technology Most Cited Article Award 2017, JENDL-4.0: A New Library for Nuclear Science and Engineering, 日本原子力学会
Mar, 2018

第50回日本原子力学会賞論文賞, Correction of the thermal neutron capture cross section of 241Am obtained by the Westcott convection, 日本原子力学会

水山一仁, 岩本信之, 岩本修
May, 2013

JPSJ Papers of Editors'Choice, Generation of Radioisotopes with Accelerator Neutrons by Deuterons, 日本物理学会

Yasuki Nagai, Kazuyuki Hashimoto, Yuichi Hatsukawa, Hideya Saeki, Shoji Motoishi, Nozomi Sato, Masako Kawabata, Hideo Harada, Tadahiro Kin, Kazuaki Tsukada, Tetsuya K. Sato, Futoshi Minato, Osamu Iwamoto, Nobuyuki Iwamoto, Yohji Seki, Kenji Yokoyama, Takehiko Shiina, Akio Ohta, Nobuhiro Takeuchi, Yukimasa Kawauchi, Norihito Sato, Hisamichi Yamabayashi, Yoshitsugu Adachi, Yuji Kikuchi, Toshinori Mitsumoto, and Takashi Igarashi
Nov, 2010

理事長表彰研究開発功績賞（団体）, 汎用評価済核データライブラリJENDL-4の完成, 日本原子力研究開発機構

Papers

143

Measurement of the neutron capture cross section of $^{185}$Re in the keV energy region

Katabuchi Tatsuya*, Sato Yaoki*, Takebe Karin*, Igashira Masayuki*, Umezawa Seigo*, Fujioka Ryo*, Saito Tatsuhiro*, Iwamoto Nobuyuki

Journal of Nuclear Science and Technology, 6, Jan, 2024 Peer-reviewed
Status of the ²²⁶ Ra nuclear data library and its impact on the production amount of ²²⁵ Ac via the ²²⁶ Ra (n,2n) reaction

Yuto Sasaki, Nobuyuki Iwamoto, Naoyuki Takaki, Shigetaka Maeda

Journal of Nuclear Science and Technology, Dec 14, 2023
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 capture cross section and capture $\gamma$-ray spectrum of $^{88}$Sr in the stellar nucleosynthesis energy region

Katabuchi Tatsuya*, Igashira Masayuki*, Kamada So*, Tajika Michihide*, Iwamoto Nobuyuki, Kawano Toshihiko*

Physical Review C, 108(3) 034610\_1-034610\_12, Sep, 2023 Peer-reviewed
Evaluation of the production amount of ²²⁵Ac and its uncertainty through the ²²⁶Ra(n,2n) reaction in the experimental fast reactor Joyo

Yuto Sasaki, Aaru Sano, Shinji Sasaki, Nobuyuki Iwamoto, Kazuki Ouchi, Yoshihiro Kitatsuji, Naoyuki Takaki, Shigetaka Maeda

Journal of Nuclear Science and Technology, 1-12, Aug 21, 2023
JENDL photonuclear data file 2016

Iwamoto Nobuyuki, Kosako Kazuaki*, Fukahori Tokio

Journal of Nuclear Science and Technology, 60(8) 911-922, Aug, 2023 Peer-reviewed
Angular correlation of the two gamma rays produced in the thermal neutron capture on gadolinium-155 and gadolinium-157

Goux P.*, Glessgen F.*, Gazzola E.*, Singh Reen M.*, Focillon W.*, Gonin M.*, Tanaka Tomoyuki*, Hagiwara Kaito*, Ali A.*, Sudo Takashi* …

Progress of Theoretical and Experimental Physics (Internet), 2023(6) 063H01\_1-063H01\_15, Jun, 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
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
$^{241}$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
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
Nuclear data generation by machine learning (I) application to angular distributions for nucleon-nucleus scattering

Shoto Watanabe, Futoshi Minato, Masaaki Kimura, Nobuyuki Iwamoto

Journal of Nuclear Science and Technology, 59(11) 1-8, May 25, 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 Peer-reviewed
Large scale production of 64Cu and 67Cu via the 64Zn(n, p)64Cu and 68Zn(n, np/d)67Cu reactions using accelerator neutrons

Masako Kawabata, Shoji Motoishi, Akio Ohta, Arata Motomura, Hideya Saeki, Kazuaki Tsukada, Shintaro Hashimoto, Nobuyuki Iwamoto, Yasuki Nagai, Kazuyuki Hashimoto

Journal of Radioanalytical and Nuclear Chemistry, 330(3) 913-922, Dec, 2021 Peer-reviewed
Neutron capture and total cross-section measurements and resonance parameter analysis of niobium-93 below 400 eV

Shunsuke Endo, Atsushi Kimura, Shoji Nakamura, Osamu Iwamoto, Nobuyuki Iwamoto, Gerard Rovira, Kazushi Terada, Shin-ichiro Meigo, Yosuke Toh, Mariko Segawa …

Journal of Nuclear Science and Technology, 1-16, Oct 20, 2021 Peer-reviewed

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
$^{241}$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
The Optical potential for neutron-nucleus scattering derived by Bayesian optimization

Watanabe Shoto*, Minato Futoshi, Kimura Masaaki*, Iwamoto Nobuyuki

JAEA-Conf 2022-001, 103-108, 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
Activation cross section data in JENDL-5

Iwamoto Nobuyuki

Kaku Deta Nyusu (Internet), (133) 55-62, Oct, 2022
$s$-process and stellar evolution

Iwamoto Nobuyuki

Kagaku, 92(9) 835-839, Sep, 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
Evaluation of neutron nuclear data on cobalt-59 for JENDL-5

Iwamoto Nobuyuki

JAEA-Conf 2021-001, 126-131, 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
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
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
Neutron capture reaction data measurement of minor actinides in fast neutron energy region for study on nuclear transmutation system

Katabuchi Tatsuya*, Iwamoto Osamu, Hori Junichi*, Iwamoto Nobuyuki, Kimura Atsushi, Nakamura Shoji, Shibahara Yuji*, Terada Kazushi*

JAEA-Conf 2019-001, 193-197, Nov, 2019
Report of 31st Meeting of the Working Party on International Nuclear Data Evaluation Co-operation (WPEC)

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

Kaku Deta Nyusu (Internet), (124) 23-34, Oct, 2019
International Conference on Nuclear Data for Science and Technology (ND2019), 3; Evaluation and theory

Nakayama Shinsuke, Iwamoto Osamu, Iwamoto Nobuyuki, Hashimoto Shintaro

Kaku Deta Nyusu (Internet), (123) 53-59, Jun, 2019
Frontier of nuclear data researches on fission product nuclides, 1; Progress in nuclear data evaluation

Iwamoto Nobuyuki

Kaku Deta Nyusu (Internet), (123) 12-21, Jun, 2019
Present status and future prospect of high energy nuclear data used for radiation therapy

Iwamoto Osamu, Kunieda Satoshi, Iwamoto Nobuyuki

Isotope News, (763) 4-7, Jun, 2019
3rd RCM on Updating the Photonuclear Data Library and Generating a Reference Database for Photon Strength Functions

Utsunomiya Hiroaki*, Iwamoto Nobuyuki, Kawano Toshihiko*

Kaku Deta Nyusu (Internet), (122) 26-32, Feb, 2019
Summary report on Consultants' Meeting of INDEN on the Evaluated Nuclear Data of the Structural Materials

Iwamoto Nobuyuki

Kaku Deta Nyusu (Internet), (122) 5-8, Feb, 2019
制動放射光を用いた鉛206の共鳴散乱断面積の測定

静間俊行, 岩本信之, 牧永綾乃, 牧永綾乃, MASSARCZYK R., SCHWENGNER R., BEYER R., BEMMERER D., DIETZ M., JUNGHANS A. …

日本原子力学会春の年会予稿集(CD-ROM), 2019, 2019

Presentations

112

Progress on nuclear data studies driven by accelerators

Iwamoto Nobuyuki

第18回未来エネルギーフォーラムシンポジウム
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
Photonuclear data evaluation considering experimental double differential cross-sections

Thi Hong Nguyen T.*, Iwamoto Nobuyuki, Sanami Toshiya*

日本原子力学会2024年春の年会
Evaluation of nuclear data for the next JENDL, 2; Neutron nuclear data on Mg isotopes

Iwamoto Nobuyuki

日本原子力学会2024年春の年会
The Key problems of stellar evolution and nuclear physics for the s-process

Iwamoto Nobuyuki

ASRC International Workshop on Nuclear Astrophysics with Stable Beams (NAPS2024)
Prediction of optimum potential for nucleon-nucleus scattering using machine learning, 2

Watanabe Shoto*, Minato Futoshi*, Kimura Masaaki*, Iwamoto Nobuyuki, Yoshida Sota*

日本原子力学会2023年秋の大会
Evaluation of nuclear data for the next JENDL, 1; Neutron nuclear data on Mo isotopes

Iwamoto Nobuyuki

日本原子力学会2023年秋の大会
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
Ac-225 production using the experimental fast reactor Joyo

Sano Aaru, Sasaki Yuto*, Sasaki Shinji, Iwamoto Nobuyuki, Ouchi Kazuki, Kitatsuji Yoshihiro, Maeda Shigetaka, Takaki Naoyuki*

International Symposium on Trends in Radiopharmaceuticals (ISTR-2023)
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
Neutron capture cross section and nuclear data

Iwamoto Nobuyuki

研究会「中性子捕獲反応で迫る宇宙の元素合成」
Measurement of fast neutron capture reaction of Am-243

Kodama Yu*, Katabuchi Tatsuya*, Rovira Leveroni G., Kimura Atsushi, Nakamura Shoji, Endo Shunsuke, Iwamoto Nobuyuki, Iwamoto Osamu, Hori Junichi*, Shibahara Yuji*, Terada Kazushi*, Nakano Hideto*, Sato Yaoki*

2022年度核データ研究会
Present status and applications of activation cross section data for nuclear reactor decommissioning, 1; Summary of JENDL-5 activation cross section data

Iwamoto Nobuyuki

日本原子力学会2022年秋の大会
Neutron capture cross section measurement of $^{241}$Am

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

日本原子力学会2022年秋の大会
Generating nucleon-nucleus scattering data by Gaussian process regression

Watanabe Shoto*, Minato Futoshi, Kimura Masaaki*, Iwamoto Nobuyuki

15th International Conference on Nuclear Data for Science and Technology (ND2022)
Nuclear data evaluation for JENDL-5, 2; Evaluation of neutron nuclear data for structure material

Iwamoto Nobuyuki

日本原子力学会2022年春の年会
Neutron filtering system for fast neutron cross-section measurement at the ANNRI beamline of MLF/J-PARC

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

2021年度核データ研究会
The Optimization of the optical potential for nucleon-nucleus scattering by using coupled-channel optical model, 2

Watanabe Shoto*, Minato Futoshi, Kimura Masaaki*, Iwamoto Nobuyuki

日本原子力学会2021年秋の大会
Study on accuracy improvement of fast-neutron capture reaction data of long-lived MA for development of nuclear transmutation systems, 1; Project overview

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

日本原子力学会2021年春の年会

Research Projects

核変換システム開発のための長寿命MA核種の高速中性子捕獲反応データの精度向上に関する研究

原子力システム研究開発事業, 文部科学省, Oct, 2017 - Mar, 2021

片渕竜也
ガンマ線共鳴反応による同位体識別のための核反応断面積の評価研究

科学研究費助成事業（学術研究助成基金助成金）, 日本学術振興会, Apr, 2014 - Mar, 2017

岩本信之
マイナーアクチニドの中性子核データ精度向上に係る研究開発

原子力システム研究開発事業, 文部科学省, Oct, 2013 - Mar, 2017

原田秀郎
長寿命核廃棄物の核変換処理技術開発のための中性子捕獲反応断面積の系統的研究

科学研究費補助金, Apr, 2010 - Mar, 2015

井頭政之
高速中性子により製造可能な核医学用放射性核種の先駆的研究

科学研究費助成事業（学術研究助成基金助成金）, 日本学術振興会, Apr, 2011 - Mar, 2014

岩本信之
Study of Explosive Astrophysical Phenomena and Nucleosynthesis based on Quark Dynamics and Nuclear Structure

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area), Japan Society for the Promotion of Science, 2008 - 2012

SUZUKI Hideyuki, KAJINO Toshitaka, SUMIYOSHI Kohsuke, UMEDA Hideyuki, SHIBATA Masaru, YAMADA Shoichi, OHNISHI Akira, URYU Kohji, CHIBA Satoshi, IWAMOTO Nobuyuki, YOSHIDA Takashi, OYAMATSU Kazuhiro, TAKANO Masatoshi
遅い中性子捕獲反応による重元素合成過程の研究

科学研究費補助金, Apr, 2005 - Mar, 2008

岩本信之
金属欠乏星におけるs過程元素合成と銀河初期の化学進化への影響

科学研究費補助金, Apr, 2003 - Mar, 2004

岩本信之

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