Updated on 2022/03/31

写真a

 
KOJIMA Yasuaki
 
Organization
Radioisotope Research Center Investigators directory Associate professor
Graduate School
Graduate School of Engineering
Title
Associate professor
Contact information
メールアドレス

Degree 1

  1. 博士(工学) ( 1998.11   名古屋大学 ) 

Research Interests 4

  1. nuclear data

  2. radiation measurements

  3. decay spectroscopy

  4. unstable nuclei

Research Areas 2

  1. Natural Science / Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics  / nuclear physics

  2. Natural Science / Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics  / radiation measurement

Current Research Project and SDGs 1

  1. decay spectroscopy for unstable nuclei

Research History 4

  1. Nagoya University   Radioisotope Research Center Investigators directory   Associate professor

    2016.4

  2. Nagoya University   Radioisotope Research Center   Lecturer

    2011.4 - 2016.3

  3. Hiroshima University   Assistant Professor

    2007.4 - 2011.3

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    Country:Japan

  4. Hiroshima University   Assistant

    1998.12 - 2007.3

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    Country:Japan

Education 3

  1. Nagoya University   Graduate School, Division of Engineering

    1996.4 - 1998.11

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    Country: Japan

  2. Nagoya University   Graduate School, Division of Engineering

    1994.4 - 1996.3

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    Country: Japan

  3. Nagoya University   Faculty of Engineering

    1990.4 - 1994.3

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    Country: Japan

Professional Memberships 4

  1. 日本物理学会

  2. 日本原子力学会

    1999

  3. 放射線安全管理学会

    2011.6

  4. 日本アイソトープ協会

Committee Memberships 5

  1. 日本放射線安全管理学会第10期選挙管理委員会   委員長  

    2019.12 - 2020.6   

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    Committee type:Academic society

  2. 日本放射線安全管理学会第17回学術大会実行委員会   実行委員  

    2017.12 - 2018.12   

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    Committee type:Academic society

  3. 日本原子力学会中部支部   幹事  

    2017.4 - 2019.3   

  4. 日本アイソトープ協会安全取扱部会年次大会実行委員会   委員  

    2015.3 - 2015.12   

  5. 日本アイソトープ協会安全取扱部会中部支部   中部支部委員  

    2014.4 - 2020.3   

 

Papers 28

  1. Optimum detector arrangement of a Compton polarimeter using a clover detector for beta-delayed gamma rays

    Kojima Y., Imai K., Ohno S., Chaya R., Yamamoto K., Shibata M.

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 990   2021.2

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  2. Correction of coincidence summing effects for add-back mode measurements with a 4 pi clover detector using experimental total efficiency

    Yamashita Takahiro, Kamada Hiroki, Kojima Yasuaki, Shibata Michihiro

    APPLIED RADIATION AND ISOTOPES   Vol. 135   page: 131-134   2018.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.apradiso.2018.01.024

    Web of Science

  3. On the iteration of coincidence summing correction for determination of gamma-ray intensities Reviewed

    Y. Shima, H. Hayashi, Y. Kojima, R. Jyousyou, M. Shibata

    App. Radiat. Isot.   Vol. 109   page: 535-538   2016.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.apradiso.2015.11.035

  4. beta- decay of 150Ce to odd-odd 150Pr Reviewed

    Y. Kojima, K. Kosuga, Y. Shima, A. Taniguchi, H. Hayashi, M. Shibata

    J. Phys. Soc. Jpn.   Vol. 84   page: 054201   2015.5

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  5. Measurements of high-energy excited states and gamma-rays of fission products with a 4pi clover detector Reviewed

    Y. Shima, Y. Kojima, H. Hayashi, A. Taniguchi, M. Shibata

    Nucl. Data Sheets   Vol. 120   page: 30-32   2014.7

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    Language:English   Publishing type:Research paper (scientific journal)  

  6. Half-life measurements of excited levels in fission products around mass number 150 Reviewed

    Y. Kojima, Y. Shima, H. Hayashi, A. Taniguchi, M. Shibata

    Nucl. Data Sheets   Vol. 120   page: 52-55   2014.7

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  7. Determination of full-energy peak efficiency at the center position of a through-hole-type clover detector between 0.05~MeV and 3.2~MeV by source measurements and Monte Carlo simulations Reviewed

    Y. Shima, H. Hayashi, Y. Kojima, M. Shibata

    Appl. Radiat. and Isot.   Vol. 91   page: 97-103   2014

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    Language:English   Publishing type:Research paper (scientific journal)  

  8. Relative intensities of prompt gamma-rays from the 35Cl(n,gamma)36Cl reaction with thermal neutron as secondary gamma-ray intensity standards Reviewed

    M. Shibata, A. Tojo, I. Miyazaki, M. Furuta, H. Hayashi, Y. Kojima, Y. Shima, A. Taniguchi

    Applied Radiation and Isotopes   Vol. 73   page: 60-67   2013

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    Language:English   Publishing type:Research paper (scientific journal)  

  9. Ground-state configuration of the N=157 nucleus 259No Reviewed

    M. Asai, K. Tsukada, M. Sakama, H. Haba, T. Ichikawa, Y. Ishii, A. Toyoshima, T. Ishii, I. Nishinaka, Y. Nagame, Y. Kasamatsu, M. Shibata, Y. Kojima, H. Hayashi

    Physical Review C   Vol. 87   page: 014332   2013

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    Language:English   Publishing type:Research paper (scientific journal)  

  10. Identification of High-Energy Levels in 147Ce with a Total Absorption Clover Detector Reviewed

    Y. Shima, Y. Kojima, M. Shibata, H. Hayashi, A. Taniguchi

    Proc. of the 2011 Symposium on Nuclear Data     page: 141-146   2012.6

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    Language:English  

  11. Emission probabilities of some intense prompt gamma rays of 24Na, 28Al, 52V, 56Mn, 60Co, 142Pr, 187W and 198Au with thermal neutron capture determined using gamma rays following beta decay Reviewed

    M. Shibata, I. Miyazaki, H. Hayashi, A. Tojo, M. Furuta, Y. Kojima, A. Taniguchi, K. Kawade

    Annals of Nuclear Energy   Vol. 43   page: 106-113   2012

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    Language:English   Publishing type:Research paper (scientific journal)  

  12. A spectrometer for lifetime determination by beta-gamma-gamma delayed coincidence technique at KUR-ISOL Reviewed

    Y. Kojima, H. Hayashi, M. Shibata, S. Endo, K. Shizuma, A. Taniguchi

    Nuclear Instruments and Methods A   Vol. 659   page: 193-197   2011.12

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.nima.2011.08.005

  13. Neutron one-quasiparticle states in 251Fm151 populated via the alpha decay of 255No Reviewed

    M. Asai, K. Tsukada, H. Haba, Y. Ishii, T. Ichikawa, A. Toyoshima, T. Ishii, Y. Nagame, I. Nishinaka, Y. Kojima, and K. Sueki

    Physical Review C   Vol. 83   page: 014315   2011.1

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    Language:English   Publishing type:Research paper (scientific journal)  

  14. Measurement of microdosimetric spectra produced from a 290 MeV/n Spread Out Bragg Peak carbon beam Reviewed

    S. Endo, M. Takada, H. Tanaka, Y. Onizuka, K. Tanaka, N. Miyahara, H. Baba, A. Oishi, M. Ishikawa, M. Hoshi, S. Kimura, M. Minematsu, Y. Morimune, Y. Kojima, K. Shizuma

    Radiation and Environmental Biophysics   Vol. 49   page: 469-475   2010.6

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    Language:English   Publishing type:Research paper (scientific journal)  

  15. Dose rate estimation around a 60Co gamma-ray irradiation source by means of 115mIn photoactivation Reviewed

    A. Murataka, S. Endo, Y. Kojima, K. Shizuma

    J. Radiat. Res.   Vol. 51   page: 197-203   2010.3

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    Language:English   Publishing type:Research paper (scientific journal)  

  16. 広島県内の地下水に含まれるウラン,ラジウムおよびラドン濃度の測定 Reviewed

    静間清,高取宏至,竹中光大,村高礼典,小島康明,遠藤暁

    Radioisotopes   Vol. 59   page: 163-171   2010.3

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  17. String-guided fast transport system and photoactivation of short-livedisomers 79mBr and 77mSe by 60Co gamma-ray irradiation Reviewed

    A. Murataka, Y. Kojima, S. Endo, K. Shizuma

    Nucl. Instruments and Methods A 610   Vol. 610   page: 654-659   2009.12

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    Language:English   Publishing type:Research paper (scientific journal)  

  18. Practical Qbeta analysis method based on the Fermi-Kurie plot for spectra measured with total absorption BGO detector Reviewed

    H. Hayashi, Y. Kojima, M.Shibata, K. Kawade

    Nucl. Instruments and Methods A   Vol. 610   page: 654-659   2009.12

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    Language:English   Publishing type:Research paper (scientific journal)  

  19. Qbeta-measurements with a total absorption detector composed of through-hole HPGe detector and anti-Compton BGO detector Reviewed

    H. Hayashi, M. Shibata, I. Miyazaki, O. Suematsu, Y. Kojima, K. Kawade, A. Taniguchi

    Nucl. Instruments and Methods A   Vol. 606   page: 484-489   2009.7

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    Language:English   Publishing type:Research paper (scientific journal)  

  20. Microdosimetry on a mini-reactor UTR-KINKI for Educational Uses and Biological Researches Reviewed

    S. Endo, K. Tanaka, K. Fujikawa, T. Horiguchi, T. Itoh, Y. Onizuka, M. Hoshi, A. Murataka, Y. Kojima, K. Shizuma

    J. Radiat. Res.   Vol. 50   page: 83-87   2009.1

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    Language:English   Publishing type:Research paper (scientific journal)  

  21. γ線スペクトロメトリによる西条酒仕込み水のラドン濃度の測定 Reviewed

    竹中光大,高取宏至,小島康明,静間清

    Radioisotopes   Vol. 57   page: 419-427   2008.7

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  22. Qbeta Measurements of 158,159Pm, 159,161 Sm, 160-165Eu, 163Gd and 166Tb using a Total Absorption BGO Detector Reviewed

    H. Hayashi, Y. Akita, O. Suematsu, M. Shibata, M. Asai, T. K. Sato, S. Ichikawa, I. Nishinaka, Y. Nagame, A. Osa, K. Tsukada, T. Ishii, Y. Kojima and A. Taniguchi

    Eur. Phys. J. A   Vol. 34   page: 363-370   2008.4

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    Language:English   Publishing type:Research paper (scientific journal)  

  23. Observation of M3 isomeric transition from 156mPm through the beta--decay of 156Nd Reviewed

    M. Shibata, O. Suematsu, Y. Kojima, K. Kawade, A. Taniguchi, Y. Kawase

    Eur. Phys. J. A   Vol. 31   page: 171-176   2007.2

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    Language:English   Publishing type:Research paper (scientific journal)  

  24. Experimental apparatus at KUR-ISOL to identify isomeric transitions from fission products, and decay spectroscopy of 151Ce Reviewed

    Y. Kojima, M. Shibata, A. Taniguchi, Y. Kawase, R. Doi, A. Nagao, K. Shizuma

    Nucl. Instruments Methods A   Vol. 564   page: 275-282   2006.6

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    Language:English   Publishing type:Research paper (scientific journal)  

  25. alpha decay of 238Cm and the new isotope 237Cm Reviewed

    M. Asai, K. Tsukada, S. Ichikawa, M. Sakama, H. Haba, I. Nishinaka, Y. Nagame, S. Goto, Y. Kojima, Y. Oura, M. Shibata:

    Phys. Rev. C   Vol. 73   page: 067301   2006.6

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    Language:English   Publishing type:Research paper (scientific journal)  

  26. beta-decay half-lives of new neutron-rich rare-earth isotopes 159Pm, 162Sm and 166Gd Reviewed

    S. Ichikawa, M. Asai, K. Tsukada, H. Haba, Y. Nagame, M. Shibata, M. Sakama, Y. Kojima

    Phys. Rev. C   Vol. 71   page: 067302   2005.6

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    Language:English   Publishing type:Research paper (scientific journal)  

  27. Proton-neutron configurations in 236g, mAm and its EC-decay daughter 236Pu Reviewed

    M. Asai, M. Sakama, K. Tsukada, S. Ichikawa, H. Haba, I. Nishinaka, Y. Nagame, S. Goto, Y. Kojima, Y. Oura, H. Nakahara, M. Shibata and K. Kawade

    Eur. Phys. J. A   Vol. 23   page: 395-400   2005.3

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    Language:English   Publishing type:Research paper (scientific journal)  

  28. EC and alpha decays of 235Am Reviewed

    M. Asai, M. Sakama, K. Tsukada, S. Ichikawa, H. Haba, I. Nishinaka, Y. Nagame, S. Goto, Y. Kojima, Y. Oura, H. Nakahara, M. Shibata, K. Kawade

    Eur. Phys. J. A   Vol. 22   page: 411-416   2004.12

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    Language:English   Publishing type:Research paper (scientific journal)  

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Books 2

  1. よくわかる放射線・アイソトープの安全取扱い

    加藤真介,小島康明,佐波俊哉,角山雄一,花房直志( Role: Joint author)

    日本アイソトープ協会  2018.3  ( ISBN:9784890732654

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    Total pages:114   Language:Japanese Book type:Textbook, survey, introduction

  2. 放射線と安全につきあう

    西澤邦秀,柴田理尋,小島康明,他( Role: Joint author)

    名古屋大学出版会  2017.5 

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    Language:Japanese Book type:Scholarly book

Presentations 3

  1. Half-life Measurements of Excited Levels in Fission Products Around a Mass Number of 150 International conference

    Y. Kojima, Y. Shima, H. Hayashi, A. Taniguchi, M. Shibata

    Int. Conf. Nuclear Data for Science and Technology 2013 

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    Event date: 2013.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  2. Measurements of High Energy Excited States and gamma-rays of Fission Products with 4-pi Clover Detector International conference

    Y. Shima, Y. Kojima, H. Hayashi, A. Tanighichi, M. Shibata

    Int. Conf. Nuclear Data for Science and Technology 2013 

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    Event date: 2013.3

    Language:English   Presentation type:Poster presentation  

    Country:United States  

  3. 質量数150近傍中性子過剰希土類核の励起準位の寿命測定

    小島康明,嶋洋佑,林裕晃,谷口秋洋,柴田理尋

    「不安定原子核の理工学と物性応用研究」専門研究会 

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    Event date: 2012.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都大学原子炉実験所   Country:Japan  

KAKENHI (Grants-in-Aid for Scientific Research) 7

  1. ラドン壊変物の影響を除した低バックグラウンド放射線監視システムの実現に向けた研究

    Grant number:21K04561  2021.4 - 2024.3

    科学研究費助成事業  基盤研究(C)

    小島 康明

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    Authorship:Principal investigator 

    Grant amount:\4160000 ( Direct Cost: \3200000 、 Indirect Cost:\960000 )

    放射線施設の安全管理を適切に行うために,自然放射性核種の影響を排除し,測定下限値を改善した低バックグラウンドな放射線モニタリングの実現を目指す.
    時間情報付きリストデータ収集装置を用いることで,放射線を検出するたびにエネルギーおよび検出時刻を箇条書き的に記録する(リストデータ).自然環境中に存在するラドン壊変核種のうち,214Poが短い半減期164マイクロ秒で壊変することに着目し,リストデータからラドン壊変核種による事象を選び出す.それを測定データ全体から除去することで,低バックグラウンドを実現する.

  2. 高感度なγ線直線偏光度測定系の開発:核データとしてのスピン・パリティ決定のために

    2016.4 - 2019.3

    科学研究費補助金  基盤研究(C)

    小島 康明

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    Authorship:Principal investigator 

  3. Development of gamma-ray linear polarization measurement system in order to determine spins and parities of nuclear excited levels

    Grant number:16K06957  2016.4 - 2019.3

    Kojima Yasuaki

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    Authorship:Principal investigator 

    Grant amount:\4940000 ( Direct Cost: \3800000 、 Indirect Cost:\1140000 )

    The aim of this research is determination of spins and parities of excited levels in short-lived beta-decaying nuclei by means of gamma-ray linear polarization measurements. In the first stage, we searched the optimum geometrical condition using standard radioactive sources of Co-60, Cs-134 and Eu-152. The best sensitivity was obtained when detectors were placed at 10cm from the source position. Next, we performed an on-line experiment for La-146 (half-life of 6 s) at KUR-ISOL (Kyoto University Reactor, Isotope Separator On-Line). In this experiment, we observed asymmetry of Compton scattering events. This means that gamma-ray linear polarization was found for short-lived nuclei.

  4. スピンおよび核行列の同時決定に基づく中性子過剰希土類核の核構造の実験的解明

    2011.4 - 2014.3

    科学研究費補助金  基盤研究(C)

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    Authorship:Principal investigator 

  5. 変形した中性子過剰希土類核に予想される核構造変化のサブナノ秒寿命測定による解明

    2009.4 - 2011.3

    科学研究費補助金  若手研究(B)

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    Authorship:Principal investigator 

  6. デジタル波形処理による入射イベントごとの放射線の種類・エネルギー同時分析法の開発

    2006.4 - 2008.3

    科学研究費補助金  若手研究(B)

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    Authorship:Principal investigator 

  7. β-γ反同時計数測定法による核分裂生成物中の核異性体の同定

    2000.4 - 2002.3

    科学研究費補助金  奨励研究(A)

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    Authorship:Principal investigator 

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Teaching Experience (On-campus) 39

  1. 数学3及び演習

    2021

  2. 原子核物理概論

    2020

  3. 数学3及び演習

    2020

  4. エネルギー理工学基礎特論

    2020

  5. エネルギー理工学セミナー

    2019

  6. 原子核工学概論

    2019

  7. 原子核物理概論

    2019

  8. 数学3及び演習

    2019

  9. エネルギー理工学セミナー

    2018

  10. 中性子・原子核科学輪講

    2018

  11. 応用核物理学

    2018

  12. 原子核物理学

    2018

  13. 原子核物理概論

    2018

  14. 中性子・原子核科学輪講

    2017

  15. 中性子・原子核科学セミナー

    2017

  16. 基礎セミナー

    2017

  17. 原子核物理学

    2017

  18. 中性子・原子核科学セミナー

    2016

  19. 中性子・原子核科学輪講

    2016

  20. 基礎セミナー

    2016

  21. 原子核物理学

    2016

  22. 中性子・原子核科学輪講

    2015

  23. 中性子・原子核科学セミナー

    2015

  24. 基礎セミナー

    2015

  25. 原子核物理学

    2015

  26. 基礎セミナー

    2014

  27. 中性子・原子核科学特論(分担担当)

    2014

  28. 中性子・原子核科学輪講

    2014

  29. 中性子・原子核科学セミナー

    2014

  30. エネルギー・物質工学(分担担当)

    2014

  31. 原子核物理学

    2014

  32. 基礎セミナー

    2013

  33. 原子核物理学

    2013

  34. 中性子・原子核科学セミナー

    2013

  35. 中性子・原子核科学輪講

    2013

  36. 中性子・原子核セミナー

    2012

     詳細を見る

    放射線計測に関する英語文献を輪読形式で読み,理解を深める.また,関連する分野の最近の学術論文の紹介を行い,内容に関する議論をすることで,自身の研究推進に生かす.

  37. 中性子・原子核科学輪講

    2012

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    原子核科学の実験手法である放射線計測に関する英語文献を輪読形式で読み,知識を得る.

  38. 原子核物理学

    2012

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    核エネルギー・放射線の源である原子核の基本的性質について理解する。実験とそれによって明らかにされた性質を関連づけて学び、最新の実験データと併せて原子核の描像を学ぶ。さらに核分裂などの核反応の機構を理解し、加速器のしくみの概要を学ぶ。

  39. エネルギー・物質工学(分担担当)

    2012

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