写真a

UTSUNOMIYA Hiroaki

Position

Professor

Research Field

Nuclear engineering, Particle/Nuclear/Cosmic ray/Astro physics

Graduating School 【 display / non-display

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    1976.03

    Kyoto University   Faculty of Science   Graduated

Graduate School 【 display / non-display

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    1981.03

    Kyoto University  Graduate School, Division of Natural Science  Doctor's Course  Completed

Campus Career 【 display / non-display

  • 2012.04
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    2013.03

    KONAN UNIVERSITYGraduate School of Natural Science (Masters Degree Program)   Graduate School of Natural Science Deprtment of Physics (Masters Degree Program)  

  • 2011.04
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    2012.03

    KONAN UNIVERSITYFaculty of Science and Engineering   Faculty of Science and Engineering Department of Physics  

  • 2005.04
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    2006.03

    KONAN UNIVERSITYGraduate School of Natural Science (Masters Degree Program)   Graduate School of Natural Science Deprtment of Physics (Masters Degree Program)  

  • 2004.04
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    2005.03

    KONAN UNIVERSITYFaculty of Science and Engineering   Faculty of Science and Engineering Department of Physics  

  • 2002.04
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    2004.03

    KONAN UNIVERSITYUniversity Office   Manager  

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External Career 【 display / non-display

  • 2012.04
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    2013.03

    University Tokyo   Center for Nuclear Science  

  • 1985.07
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    1990.12

    Cyclotron Institute, Texas A&M University  

  • 1982.10
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    1985.06

    Superconducting Cyclotron Laboratory, Michigan State University  

 

Published Papers 【 display / non-display

  • γ-ray strength function for thallium isotopes relevant to the 205Pb-205Tl chronometry

    H. Utsunomiya, T. Renstrøm, G. M. Tveten, S. Goriely, T. Ari-izumi, D. Filipescu, J. Kaur, Y.-W. Lui, W. Luo, S. Miyamoto, et al.

    PHYSICAL REVIEW C   99   024609-1 - 024609-8   2019.02  [Refereed]

    Joint Work

    Photoneutron cross sections were measured for 203Tl and 205Tl at energies between the one- and two-neutron thresholds using quasimonochromatic γ-ray beams produced in laser Compton scattering at the NewSUBARU synchrotron radiation facility. Our measurement results in cross sections significantly different from the previously reported bremsstrahlung experiment, leading to rather different giant dipole resonance (GDR) parameters, in particular to lower GDR peak energies and higher peak cross sections. The photoneutron data are used to constrain the γ-ray strength function on the basis of the Hartree-Fock-Bogolyubov plus quasiparticle random-phase approximation using the Gogny D1M interaction. Supplementing the experimentally constrained γ-ray strength function with the zero-limit E1 andM1 contributions for the de-excitation mode, we estimate the Maxwellian-averaged cross section for the s-process branching-point nucleus 204Tl in the context of the 205Pb-205Tl chronometry.

    DOI

  • Photoneutron cross sections for Ni isotopes: Toward understanding (n,γ) cross sections relevant to weak s-process nucleosynthesi

    H. Utsunomiya, T. Renstrøm, G. M. Tveten, S. Goriely, S. Katayama, T. Ari-izumi, D. Takenaka, D. Symochko, B. V. Kheswa, V. W. Ingeberg et al.

    PHYSICAL REVIEW C   98   054619-1 - 054619-9   2018.11  [Refereed]

    Joint Work

    Photoneutron cross sections were measured for 58Ni, 60Ni, 61Ni, and 64Ni at energies between the one-neutron and two-neutron thresholds using quasimonochromatic γ-ray beams produced in laser Compton scattering at the NewSUBARU synchrotron radiation facility. These photoneutron data are used to extract the γ-ray strength function above the neutron threshold, complementing the information obtained by the Oslo method below the threshold. We discuss radiative neutron-capture cross sections and the Maxwellian-averaged cross sections for Ni isotopes including 63Ni, a branching point nucleus along the weak s-process path. The cross sections are calculated with the experimentally constrained γ-ray strength functions from the Hartree-Fock-Bogolyubov plus quasiparticle–random-phase approximation based on the Gogny D1M interaction for both E1 andM1 components and supplemented with the M1 upbend.

    DOI

  • Response function and linearity for high energy γ-rays in large volume LaBr3:Ce detectors

    G. Gosta, N. Blasi, F. Camera, B. Million, A. Giz\az, O. Wieland, F.M. Rossi, H. Utsunomiya, T. Ari-izumi, D. Takenaka, D. Filipescu, I. Gheorghe

    Nucl. Inst. Meth. A   879   92 - 100   2018  [Refereed]

    Joint Work

  • Direct neutron-multiplicity sorting with a flat-efficiency detector

    Hiroaki Utsunomiya, Ioana Gheorghe, Dan M. Filipescu, Tudor Glodariu, Sergey Belyshev, Konstantin Stopani, Vladimir Varlamov, Boris Ishkhanov, Seitarou Katayama, Daiki Takenaka, Takashi Ari-izumi, Sho Amanoe, Shuji Miyamoto

    Nuclear Instruments and Methods A   871   135 - 141   2017  [Refereed]

    Joint Work

  • Quasicontinuum γ decay of 91,92Zr: Benchmarking indirect (n,γ) cross section measurements for the s process

    M. Guttormsen, S. Goriely, A. C. Larsen, A. Görgen, T. W. Hagen, T. Renstrøm, S. Siem, N. U. H. Syed, G. Tagliente, H. K. Toft, H. Utsunomiya, A. V. Voinov, and K. Wikan

    Physical Review C   96   024313-1 - 024313-9   2017  [Refereed]

    Joint Work

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Books etc 【 display / non-display

  • TOURS SYMPOSIUM ON NUCLEAR PHYSICS V

    H. Utsunomiya, T. Wada, T. Yamagata (Part: Joint Work )

    AMERICAN INSTITUTE OF PHYSICS  2004.11

    国際会議プロシーデイングス編集
    単行本TOURS SYMPOSIUM ON NUCLEAR PHYSICS V
    編集者M. Arnould, M. Lewitowicz, G. Muenzenberg, H. Akimune, M. Ohta,
    H. Utsunomiya, T. Wada, T. Yamagata
    出版社 AMERICAN INSTITUTE OF PHYSICS
    (AIP Conference Proceedings 704, New York, 2004)

  • TOURS SYMPOSIUM ON NUCLEAR PHYSICS IV (共著)

    H. Utsunomiya, T. Wada, T. Yamagata (Part: Joint Work )

    AMERICAN INSTITUTE OF PHYSICS  2001.11

    国際会議プロシーデイングス
    単行本TOURS SYMPOSIUM ON NUCLEAR PHYSICS IV
    編集者M. Arnould, M. Lewitowicz, Yu.Ts. Oganessian, H. Akimune, M. Ohta,
    H. Utsunomiya, T. Wada, T. Yamagata
    出版社 AMERICAN INSTITUTE OF PHYSICS
    (AIP Conference Proceedings 561, New York, 2001)

Review Papers (Misc) 【 display / non-display

  • 3rd RCM on Updating the Photonuclear Data Library and Generating a Reference Database for Photon Strength Functions

    宇都宮弘章、岩本信之、河野俊彦

    核データニュース ( 日本原子力研究開発機構 )  122   2019.02

    Introduction and explanation (others)   Joint Work

    国際原子力機関の光核反応データプロジェクトの第3回プロジェクトミーティングに関する報告

  • The γ-Ray Beam-Line at NewSUBARU

    Hiroaki Utsunomiya, Satoshi Hashimoto, Shuji Miyamoto

    Nuclear Physics News ( European Science Foundation )  25 ( 3 ) 25 - 29   2015.07

    Introduction and explanation (others)   Joint Work

    ニュースバル放射光施設のガンマ線ビームラインに関する記事

  • 実験室で探る天体光核反応とその周辺

    宇都宮弘章

    日本物理学会誌 最近の研究から Vol. 62, No. 1 ( 日本物理学会誌 )  62 ( 1 ) 34 - 39   2007.11

    Introduction and explanation (bulletin of university, research institution)   Single Work

  • 光核反応に新たな息吹を吹き込む

    宇都宮 弘章

    研究室だより 核データニュース No.80 ( a )  ( 30 ) 83   2005.11

    Introduction and explanation (others)   Single Work

Conference Activities & Talks 【 display / non-display

  • 79Seにおけるsプロセス分岐

    牧永あや乃、宇都宮弘章、後神進史、海堀岳史、芳原新也、原田秀郎、北谷文人、原かおる、豊川弘之、原野英樹、松本哲郎、S. Goriely

    日本物理学会 2007年春季大会  (首都大学東京南大沢キャンパス)  2007.03  -  2007.03  日本物理学会 

  • 大型NaI(Tl)検出器によるレーザー逆コンプトンγ線の応答

    楠原純平、宇都宮弘章、後神進史

    日本物理学会 2007年春季大会  (首都大学東京南大沢キャンパス)  2007.03  -  2007.03  日本物理学会

  • 91Zr(γ, n)90Zr反応断面積の測定

    芳原新也、後神進史、牧永あや乃、海堀岳史、原かおる、北谷文人、豊川弘之、松本哲郎、原野英樹、原田秀郎、宇都宮弘章

    日本原子力学会2006年春の年会  (日本原子力研究開発機構 大洗研究開発センター)  2006.03  -  2006.03  日本原子力学会

  • 準単色LCSγ線による181Ta光中性子断面積の励起関数の決定

    海堀岳史,宇都宮弘章,秋宗秀俊,後神進史,牧永あや乃,芳原新也,豊川弘之,Y.-W.Lui

    日本物理学会 第61回年次大会  (愛媛大学・松山大学)  2006.03  -  2006.03  日本物理学会 

  • 核異性体180Tamの生成部分断面積

    後神進史,宇都宮弘章,S.Goriely,牧永あや乃,海堀岳史,秋宗秀俊,山県民穂,芳原新也,Y.-W. Lui,豊川弘之

    日本物理学会 第61回年次大会  (愛媛大学・松山大学)  2006.03  -  2006.03  日本物理学会 

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Grant-in-Aid for Scientific Research 【 display / non-display

  • Grant-in-Aid for Scientific Research(B)

    Project Year: 2004.11  -  2006.11 

  • Grant-in-Aid for Exploratory Research

    Project Year: 2004.11  -  2005.11 

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2001.04  -  2003.03 

Joint and Contract research activities (Public) 【 display / non-display

  • Nuclear shapes and resonances, Japan-Norway collaboration on research and education

    International Joint Research  

    Project Year: 2019.01  -   

 

Qualification acquired 【 display / non-display

  • Chief Person of Radiation Handling (first and second kind)