MEASUREMENT OF NEGATIVE-IONS BY PHOTODETACHMENT WITH YAG LASER IN DISCHARGE PLASMAS

被引：23

作者：

AMEMIYA, H

SUZUKI, T

机构：

[1] RIKEN (The Institute of Physical and Chemical Research), Saitama, 351-01, Wako-shi, Hirosawa

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1990年 / 29卷 / 09期

关键词：

Collow cathode discharge; Negative ions; Optogalvanic method; Oxygen; Photodetachment; Y AG laser;

D O I：

10.1143/JJAP.29.L1712

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The photodetachment response of neagative ions has been investigated with YAG lasers using a hollow cathode discharge in oxygen. The current of electrons released by the laser has been measured as a function of the discharge current and the pressure. The diagnostic method is formulated in such a manner that the densities of atomic and molecular negative ions are determined simultaneously from the response of photodetached electrons to the fundamental and second harmonic radiation of YAG laser. The sum of the densities compares well with the total negative ion density obtained by the probe method. © 1990 The Japan Society of Applied Physics.

引用

页码：L1712 / L1715

页数：4

共 7 条

[1]

AMEMIYA H, 1990, J PHYS D, V23

[2] MEASUREMENT OF H- DENSITY IN PLASMA BY PHOTODETACHMENT [J].