Specific features of the excitation spectrum of helium II in a plasma initiated by an electron beam

被引：1
|
作者：
Zhigalov, OV [1 ]
Piotrovskii, YA [1 ]
Tolmachev, YA [1 ]
机构：
[1] St Petersburg State Univ, Fac Phys, Peterhof 198504, Russia
来源：
OPTICS AND SPECTROSCOPY | 2004年 / 97卷 / 02期
关键词：
Charge Exchange; Emission Line; Current Pulse; Helium Atom; Inelastic Collision;
D O I：
10.1134/1.1790631
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The emission of a low-pressure helium plasma (P less than or equal to 2 Torr) initiated by a monochromatic electron beam is investigated. It is found that an increase in the current leads to a drastic increase in the rate of charge C exchange of doubly charged helium ions. The assumption is made that inelastic collisions of He++ ions with C metastable helium atoms provide the main channel of charge exchange of these ions due to the reaction He++ + He-m --> He+* + He-0(+). (C) 2004 MAIK "Nauka/Interperiodica".
引用
收藏
页码：167 / 171
页数：5
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