A double electron capture by alpha particles in collisions with hydrogen molecules in low temperature plasma

被引：0

作者：

Oda, T ^{[1
]}

Sato, K

Namba, S

Kusakabe, S

Takahara, K

Tawara, H

Katsuta, T

Takiyama, K

Furukane, U

机构：

[1] Natl Inst Fus Sci, Nagoya, Aichi 46401, JAPAN

[2] Hiroshima Univ, Dept Appl Phys & Chem, Fac Engn, Higashihiroshima, JAPAN

[3] Hiroshima Denki Inst Technol, Fac Engn, Hiroshima 73903, JAPAN

来源：

JOURNAL OF NUCLEAR MATERIALS | 1997年 / 241卷

关键词：

TPD-II; divertor plasma; atomic physics;

D O I：

10.1016/S0022-3115(96)00706-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spectroscopic study has been made of double electron capture process by alpha particles. He2+, when helium plasmas contact with cold hydrogen molecule. Fast enhancements of He I n=2,4 and 5 as well as of He I n=3 level populations due to the selective double electron capture have been found at the early period of hydrogen gas injection into the helium plasmas. Large population inversion resulting from these enhancements has been also observed between n=2 and 3 levels. Numerical calculation based on a collisional-radiative model has revealed the enhancement mechanism.

引用

页码：1238 / 1242

页数：5

共 11 条

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