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2007 Fiscal Year Final Research Report Summary

Diagnostics systems for the study of physics issues related to alpha-particles

Research Project

Project/Area Number 16340177
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Plasma science
Research InstitutionTohoku University

Principal Investigator

SASAO Mamiko  Tohoku University, Tohoku University, School of Engineering, Professor (00144171)

Co-Investigator(Kenkyū-buntansha) KITAJIMA Sumio  Tohoku University, School of Engineering, Associate Professor (30161475)
IWASAKI Makoto  Tohoku University, Graduate School of Educational Informatics, Professor (10005465)
IWASAKI Tomohiko  Tohoku University, School of Engineering, Associate Professor (70184869)
KUSAMA Yoshinori  Japan Atomic Energy Agency, 炉心プラズマ研究部, Group Leader (70343902)
ISOBE Mitsutaka  National Institute for Fusion Science, 大型ヘリカル研究部, Research Associate (00300731)
Project Period (FY) 2004 – 2007
Keywordsplasma / neutron diagnostics / neutron spectrometer / alpha particle diagnostics / Lost alpha particle diagnostics / nuclear fusion
Research Abstract

Self-heating of a DT plasma by fusion-produced alpha particles is the key to realise self-sustainable ignition of a thermonuclear plasma in a fusion reactor, and physics related to alpha particles will become more important in the next-stage burning plasma experiments. In this project, fusion product measurements were studied from the viewpoint of alpha particle-related physics researches. Major results of this project are:
[1] The transition mechanism to an improved mode, which is necessary to realize a burning plasma was studied experimentally, and the neoclassical theory was validated. [2] Several methods to measure confined alpha particles were examined, and R & D issues were specified. [3] Several methods to measure lost alpha particles were examined, and R & D issues were specified. [4] A new type of scintillator, which can be used to measure lost alpha particles under high temperature, was developed. [5] Various neutron measurement systems were examined, and R & D issues were specified. [6] A new neutron spectrometer for the deuteron/triton density ratio measurement was developed. [7] Combined the studies mentioned above, review papers of fusion products diagnostics were written in journals.

  • Research Products

    (42 results)

All 2008 2007 2006 2005 2004

All Journal Article (20 results) (of which Peer Reviewed: 10 results) Presentation (22 results)

  • [Journal Article] Fusion product diagnostics2008

    • Author(s)
      M. sasao, et. al
    • Journal Title

      Fusion Science and Technology 53

      Pages: 604-639

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Study of ion viscosity by spontaneous L-H transitions under marginal hot cathode biasing in the Tohoku University Heliac2008

    • Author(s)
      S. Kitajima, et. al
    • Journal Title

      Nucl. Fusion 48No3

      Pages: 035002(6)

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Fusion product diagnositic2008

    • Author(s)
      M. sasao, et. al.
    • Journal Title

      Fusion Science and Technology 53

      Pages: 604-639

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Study of ion viscosity by spontaneous L-H transitions under marginal hot cathode biasing in the Tohoku University Heliac2008

    • Author(s)
      S. Kitajima, et. al.
    • Journal Title

      Nucl. Fusion48 No. 3

      Pages: 035002-8

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Confinement degradation and transport of energetic ions due to Alfven eigenmodes in JT-60U weak shear plasmas2007

    • Author(s)
      M.Ishikawa, et. al
    • Journal Title

      Nucl. Fusion 47No8

      Pages: 849-855

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Progress in the ITER Physics Basis: Chapter 7: Diagnostics2007

    • Author(s)
      A. J. H. Donn, et. al
    • Journal Title

      Nucsl. Fusion 47

      Pages: S337-S384

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Development of a time of flight spectrometer for nd/nt fuel ratio measurement in burning plasma2007

    • Author(s)
      K. Okada, et. al
    • Journal Title

      Plasma and Fusion Research 2

      Pages: S1083-S1085

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Confinement degradation and transport of energetic ions due to alfven eigenmodes in JT-60U weak shear plasmas2007

    • Author(s)
      M. Ishikawa, et. al.
    • Journal Title

      Nucl. Fusion47 No. 8

      Pages: 849-855

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Progress in the ITER Physics Basis: Chapter 7: Diagnostics2007

    • Author(s)
      A. J. H. Donn, et. al.
    • Journal Title

      Nucl. Fusion47

      Pages: S337-S384

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Development of a time of flight spectrometer for nd/nt fuel ratio measurement in burning plasma2007

    • Author(s)
      K. Okada, et. al.
    • Journal Title

      Plasma and Fusion Research2

      Pages: S1083-S1085

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Characterization of scintillators for lost alpha diagnostics on burning plasma experiments2006

    • Author(s)
      M. Nishiura, et. al
    • Journal Title

      Review of Scientific Instruments 77

      Pages: 10E720

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Development of neutron measurement system for nd/nt fuel ratio measurement in ITER experiments2006

    • Author(s)
      K. Okada, et. al
    • Journal Title

      Review of Scientific Instruments 77

      Pages: 10E726

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Studies of fast-ion transport induced by energetic particle modes using fast-particle diagnostics with high time resolution in CHS2006

    • Author(s)
      M. Isobe, et. al
    • Journal Title

      Nucl. Fusion 46No10

      Pages: S918-S925

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Observation of confinement degradation of energetic ions due to Alfven eigenmodes in JT-60U weak shear plasmas2006

    • Author(s)
      M. Ishikawa, et. al
    • Journal Title

      Nucl. Fusion 46No10

      Pages: S898-S903

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Characterization of scintillators for lost alpha diagnostics on burning plasma experiments2006

    • Author(s)
      M. Nishiura, et. al.
    • Journal Title

      Review of Scientific Instruments77

      Pages: 10E720

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Development of neutron measurement system for nd/nt fuel ratio measurement in ITER experiments2006

    • Author(s)
      K. Okada, et. al.
    • Journal Title

      Review of Scientific Instruments77

      Pages: 10E726

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Studies of fast-ion transport induced by energetic particle modes using fast-particle diagnostics with high time resolution in CHS2006

    • Author(s)
      M. Isobe, et. al.
    • Journal Title

      Nucl. Fusion 46 No. 10

      Pages: S918-S925

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Observation of confinement degradation of energetic ions due to Alfven eigenmodes in JT-60U weak shear plasmas2006

    • Author(s)
      M. Ishikawa, et. al.
    • Journal Title

      Nucl. Fision46 No 10

      Pages: S898-S903

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Overview of neutron and confined/ escaping alpha diagnostics planned for ITER2004

    • Author(s)
      M Sasao, et. al
    • Journal Title

      Plasma Phys. Control. Fusion 46

      Pages: S107-S118

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Overview of neutron and confined/escaping alpha diagnostics planned for ITER2004

    • Author(s)
      M Sasao, et. al.
    • Journal Title

      Plasma Phys. Control. Fusion46

      Pages: S107-S118

    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] 核燃焼プラズマ実験時代におけるLHD重水素実験の位置付け2007

    • Author(s)
      笹尾真実子
    • Organizer
      プラズマ・核融合学会第24回年会・シンポジュウムV
    • Place of Presentation
      イーグレひめじ、姫路市、日本
    • Year and Date
      2007-11-30
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Role of LHD deuterium experiment in the era of burning plasma experiments2007

    • Author(s)
      Mamiko Sasao
    • Organizer
      24th JSPF Annual Meeting
    • Place of Presentation
      EGRET HIMEJI Himeji, Japan
    • Year and Date
      2007-11-30
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Study of Escaping Alpha Particle Orbits for Detector Design on ITER2007

    • Author(s)
      M. Sasao
    • Organizer
      INTERNATIONAL WORKSHOP ON BURNING PLASMA DIAGNOSTICS
    • Place of Presentation
      Villa Monastero, Varenna,イタリア
    • Year and Date
      2007-09-27
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Measurement of DT and DD components in neutron spectrum with a double-crystal time-of-flight spectrometer2007

    • Author(s)
      K. Okada
    • Organizer
      INTERNATIONAL WORKSHOP ON BURNING PLASMA DIAGNOSTICS
    • Place of Presentation
      Villa Monastero, Varenna,イタリア
    • Year and Date
      2007-09-27
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Study of Escaping Alpha Particle Orbits for Detector Design no ITER2007

    • Author(s)
      M. Sasao
    • Organizer
      INTERNATIONAL WORKSHOP ON BURNING PLASMA DIAGNOSTICS
    • Place of Presentation
      Villa Monastero Varenna, Italy
    • Year and Date
      2007-09-27
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Measurement of DT and DD components in neutron spectrum with a double-crystal time-of-flight spectrometer2007

    • Author(s)
      K. Okada
    • Organizer
      INTERNATIONAL WORKSHOP ON BURNING PLASMA DIAGNOSTICS
    • Place of Presentation
      Villa Monastero Varenna, Italy
    • Year and Date
      2007-09-27
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Development of a HeO Source for Confined Alpha Particle Measurement2007

    • Author(s)
      N. Tanaka
    • Organizer
      INTERNATIONAL WORKSHOP ON BURNING PLASMA DIAGNOSTICS
    • Place of Presentation
      Villa Monastero, Varenna,イタリア
    • Year and Date
      2007-09-25
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Development of a He^0 Source for Confined Alpha Particle Measurement2007

    • Author(s)
      N. Tanaka
    • Organizer
      INIERNATIONAL WORKSHOP ON BURNING PLASMA DIAGNOSTICS
    • Place of Presentation
      Villa Monsastero, Varenna, Italy
    • Year and Date
      2007-09-25
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] ITERプラズマ計測に関わる重要課題2007

    • Author(s)
      笹尾真実子
    • Organizer
      日本物理学会春季大会
    • Place of Presentation
      鹿児島大学、鹿児島市、日本
    • Year and Date
      2007-03-20
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Critical issues of ITER Plasma diagnositics2007

    • Author(s)
      Mamiko Sasao
    • Organizer
      The Physical Society of Japan 2007 spring meeting
    • Place of Presentation
      Kagoshima University Kagoshima, Japan
    • Year and Date
      2007-03-20
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] 磁場核融合における燃焼プラズマ計測ーレーザー核融合に期待するもの2007

    • Author(s)
      笹尾真実子
    • Organizer
      日本物理学会春季大会
    • Place of Presentation
      鹿児島大学、鹿児島市、日本
    • Year and Date
      2007-03-19
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Expected outcomes from Laser fusion research for burning plasma diagnostics2007

    • Author(s)
      Mamiko Sasao
    • Organizer
      The Physical Society of Japan 2007 spring meeting
    • Place of Presentation
      Kagoshima University Kagoshima, Japan
    • Year and Date
      2007-03-19
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Integration of Lost Alpha-Particle Diagnostic Systems on ITER2005

    • Author(s)
      M. Sasao,
    • Organizer
      The 9th IAEA Technical Meeting on Energetic Particles in Magnetic Confinement Systems
    • Place of Presentation
      飛騨・世界生活文化センター、高山市、日本
    • Year and Date
      2005-11-11
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Integration of Lost Alpha-Particle Diagnostic Systems on ITER2005

    • Author(s)
      M. Sasao
    • Organizer
      The 9th IAEA Technical Meeting on Energetic Particles in Magnetic Confinement Systems
    • Place of Presentation
      HIDAERTH WISDOM CENTER, Takayama, Japan
    • Year and Date
      2005-11-11
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Development of Ceramic Scintillators for Lost Alpha Measurement on ITER2005

    • Author(s)
      M. Sasao^1
    • Organizer
      Proceedings of the 32nd EPS Conference on Plasma Physics
    • Place of Presentation
      Tarragona大学, Tarragona, Spain
    • Year and Date
      2005-06-30
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Study of pitch-angle-scattering spectrum of high-energy ions in the Large Helical Device2005

    • Author(s)
      M. Sasao
    • Organizer
      Proceedings of the 32nd EPS Conference on Plasma Physics
    • Place of Presentation
      Tarragona大学, Tarragona, Spain
    • Year and Date
      2005-06-30
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] A TOF neutron spectrometer for measurement of the fuel ratio on ITER2005

    • Author(s)
      K.Okada
    • Organizer
      Proceedings of the 32nd EPS Conference on Plasma Physics
    • Place of Presentation
      Tarragona大学, Tarragona, Spain
    • Year and Date
      2005-06-30
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Development of Ceramic Scintillators for Lost Alpha Measurement on ITER2005

    • Author(s)
      M. Sasao
    • Organizer
      The 32nd EPS Conference on Plasma Physics
    • Place of Presentation
      University of Tarragona, Tarragona, Spain
    • Year and Date
      2005-06-30
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Study of pitch-angle-scattering spectrum of high-energy ions in the Large Helical Device2005

    • Author(s)
      M. Sasao
    • Organizer
      The 32nd EPS Conference on Plasma Physics
    • Place of Presentation
      University of Tarragona, Tarragona, Spain
    • Year and Date
      2005-06-30
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] A TOF neutron spectrometer for measurement of the fuel ration on ITER2005

    • Author(s)
      K. Okada
    • Organizer
      The 32nd EPS Conference on Plasma Physics
    • Place of Presentation
      University of Tarragona, Tarragona, Spain
    • Year and Date
      2005-06-30
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] LH Transition by a Biased Hot Cathode in the Tohoku University Heliac2004

    • Author(s)
      S.KITAJIMA
    • Organizer
      Proceedings of 20th IAEA Fusion Energy Conference
    • Place of Presentation
      The vilamoara Marinotel Vilamoura, Portugal
    • Year and Date
      2004-11-04
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] LH Transition by a Biased Hot Cathode in the Tohoku University Heliac2004

    • Author(s)
      S. KITAJIMA
    • Organizer
      The 20^<th> IAEA Fusion Energy Conference
    • Place of Presentation
      The Vilamoura Marinotel, Vilamoura, Portugal
    • Year and Date
      2004-11-04
    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2010-02-04  

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