Development of system for simultanious measurement of 2.45 and 14 MeV neutrons for research on fast ion transport

2012 Fiscal Year Final Research Report

• Project/Area Number: 22560825
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear fusion studies
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: SHINOHARA Kouji 独立行政法人日本原子力研究開発機構, 核融合研究開発部門, 研究主幹 (50354600)
• Co-Investigator(Kenkyū-buntansha): BABA Mamoru 東北大学, サイクロトロンラジオアイソトープセンタ, 名誉教授 (20005466)
• Co-Investigator(Renkei-kenkyūsha): ISHIKAWA Masao 独立行政法人日本原子力研究開発機構, 核融合研究開発部門, 研究員 (70370351)
• Project Period (FY): 2010 – 2012
• Keywords: 中性子計測 / 高計数率 / ゲイン変動 / 中性子-γ線弁別

Research Abstract

We have carried out the research and development of system for simultanious measurement of 2.45 and 14 MeV neutrons for research on fast ion transport. We preceded the project with the issues observed in the previous experiments in mind by developing new hardwares and softwares, and evaluating the hardwares in experiments. Then, the following knowledgebase to improve the diagnostics system has been obtained: the characteritics of pulse height variation, so called “gain variation”, the characteristics of sintillator detectors, the technologies on the fast pulse-shape processing. We have also proposed the multi-stage detection system based on the knowledgebase, and proved the capability through experiments using a neutron beam at the FNS facility.

Research Products

• [Journal Article] Multi-Channel Neutron Emission and Triton Burn-up Measurement on JT-60U Using Digital Signal Processors (2010)
  • Author(s): K. Ishii, K. Shinohara, M. Ishikawa, T. Okuji, M. Baba, M. Isobe, S. Kitajima, and M. Sasao
  • Journal Title: Plasma and Fusion Research Volume: vol.5 Pages: S1043-1-5
  • Peer Reviewed
• [Journal Article] Fast neutron-gamma discrimination on neutron emission profile measurement on JT-60U (2010)
  • Author(s): K. Ishii, K. Shinohara, M. Ishikawa, M. Baba, M. Isobe, A. Okamoto, S. Kitajima, and M. Sasao
  • Journal Title: Rev. Sci. Instrum. Volume: vol.81 Pages: 10D334-1-3
  • Peer Reviewed
• [Presentation] Fast Neutron-Gamma Discrimination on Neutron emission profile Measurement on JT-60U (2010)
  • Author(s): 石井啓一,篠原孝司,石川正男,馬場護,磯部光孝,岡本敦,北島純男,笹尾眞實子
  • Organizer: The 18^<th> Topical Conference on High Temperature Plasma Diagnostics
  • Place of Presentation: Wildwoods Convention Center(ワイルドウッド ニュージャージー州 米国)
  • Year and Date: 2010-05-20
• [Remarks] 石井 啓一, JT-60U における高速イオン挙動解明を目指した 中性子分布計測の高性能化に関する研究, 修士学位論文, 平成22年1月29日提出,東北大学大学院工学研究科 量子エネルギー工学専攻