Measurement of Charged Fusion Products Last from a Reacting Plasma

测量反应等离子体最后的带电聚变产物

• 批准号: 59460200
• 负责人: SASAO Mamiko
• 金额: $ 3.2万
• 依托单位: Institute of Plasma Physics, Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1984
• 资助国家: 日本
• 起止时间: 1984 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-59460200/
• 关键词: Plasma; Nuclear Fusion; Alpha Particle; CsI(Tl) Scintillation Detector; CsI(Tl)シンチレーター; 核燃焼プラズマ

The measurement of charged fusion products lost from a reacting plasma has been considered to be useful to get the velocity distributions of ions, and the information of the single-particle confinement of high energy particles. Especially the measurement of escaping alpha particles from a burning plasma will be one of the key issues for the research on the alpha heating and the wall load.In the present work, we have investigated the response and detection efficiencies of various particle detectors for 14 MeV neutrons. The absolute response functions of Silicon solid State Detectors, a CsI (Tl) scintillation detector, and CR-39 track detectors are measured and compared with results of calculation from nuclear reaction cross sections, emitting particle spectra and their ranges.We have also measured 3 MeV proton and 1 MeV triton energy spectra, produced from DD reaction in a deuterium plasma of JIPP T-IIU. For that purpose, a probe with Si-SSD was specially designed and was attached to the vacuum vessel of JIPP T-IIU. A data taking system for time evolution of energy spectra was developed.Ion temperatures and deuteron velocity distributions are expected to be obtained from those spectra, after the improvement of the collimator and x-ray shield.

测量反应等离子体中的带电聚变产物损失，可以得到离子的速度分布，以及高能粒子的单粒子约束信息。特别是从燃烧等离子体中逃逸的α粒子的测量将是α加热和壁负荷研究的关键问题之一。测量了硅固体探测器、CsI（Tl）闪烁探测器和CR-39径迹探测器的绝对响应函数，并与核反应截面、发射粒子谱及其射程的计算结果进行了比较，还测量了JIPP T-IIU氘等离子体DD反应产生的3 MeV质子和1 MeV triton能谱。为此，专门设计了一种带有Si-SSD的探针，并将其连接到JIPP T-IIU的真空容器上。研制了能谱时间演化数据采集系统，改进了准直器和X射线屏蔽装置后，可望从能谱中得到离子温度和氘核速度分布。

项目成果

T. Watari et al.: "Experiments on ICRF Heating and Fasr Wave Current Drive in JIPP T-IIU" Proceedings of 11th International Conference on Plasma and Controlled Nuclear Fusion Research.

T. Watari 等人：“JIPP T-IIU 中的 ICRF 加热和 Fasr 波电流驱动实验”第 11 届等离子体与受控核聚变研究国际会议论文集。

M. Sasao, R. Taniguchi and T. Iida: "Response of Silicon Surface Barrier Detectors to 14 MeV Neutrons" IPPJ. 779. 29-30 (1986)

M. Sasao、R. Taniguchi 和 T. Iida：“硅表面势垒探测器对 14 MeV 中子的响应”IPPJ。

M.Sasao;R.Taniguchi;T.Iida: IPPJ. 779. 29-30 (1986)

M.Sasao；R.Taniguchi；T.Iida：IPPJ。

M. Sasao, T. Mori, K. Ando, Y. Ogawa, T. Watari: "Measurement of Fusion Products during ICRF Heating on JIPP T-IIU" Proceedings of 1986 Topical Meeting of Physical Society of Japan. 4. 171 (1986)

M. Sasao、T. Mori、K. Ando、Y. Okawa、T. Watari：“JIPP T-IIU 上 ICRF 加热过程中聚变产物的测量”1986 年日本物理学会专题会议论文集。

T.Watari et al.: Proceedings of 11th International Conference on Plasma and Controlled Nuclear Fusion Research.

T.Watari 等人：第 11 届国际等离子体和受控核聚变研究会议论文集。