Kinetic Analysis of γ-Ray-Generating Reactions for Fuel Ion and Energetic Particle Diagnostics of D–T Fusion Plasma
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- Nakamura Makoto
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University
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- Nakao Yasuyuki
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University
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- Voronchev Victor T.
- Institute of Nuclear Physics, Moscow State University
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- Hegi Kotaro
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University
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- Matsuura Hideaki
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University
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- Mitarai Osamu
- Institute of Industrial Science and Technical Research, Kyushu Tokai University
書誌事項
- タイトル別名
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- Kinetic Analysis of ガンマ Ray Generating Reactions for Fuel Ion and Energetic Particle Diagnostics of D T Fusion Plasma
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抄録
In D–T fusion plasma seeded with a small amount of 6Li, monochromatic 0.429-, 0.478- and 0.981-MeV γ rays are produced in the 6Li+D and 6Li+T nuclear reactions. In the present paper we investigate these processes in the appropriate plasma kinetic model. The non-Maxwellian tails of deuteron and triton distribution functions created due to nuclear elastic scattering of D–T α-particles by fuel ions are found to enhance crucially production of the diagnostic γ rays. This result can be considered as the first explicit demonstration that in a fusion plasma the role of suprathermal reaction channels induced by energetic knock-on ions can become comparable with (or even dominate) that of thermal ones. Possibilities of fuel ion and α-particle diagnostics using the reaction-produced γ rays are also discussed. It is pointed out for the first time that the behavior of α-particles during slowing-down could be diagnosed by detecting 0.981-MeV α-rays emitted in a nuclear reaction between knock-on tritons and 6Li admixture ions.
収録刊行物
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 75 (2), 024801-, 2006
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390282679167842688
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- NII論文ID
- 210000106019
- 110004086890
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- NII書誌ID
- AA00704814
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 7813380
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可