Spectroscopy of the regenerative soot

被引：15
作者：
Ahmad, S [1 ]
机构：
[1] PINSTECH, Accelerator Lab, Islamabad, Pakistan
来源：
EUROPEAN PHYSICAL JOURNAL D | 2002年 / 18卷 / 03期
关键词：
D O I：
10.1140/epjd/e20020035
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The mechanisms and processes of the formation of the regenerative soot in a graphite hollow cathode discharge that produces and emits carbon clusters are presented. Mass spectrometry with a specially designed E x B velocity filter analyzes the entire range of the charged clusters from C-1 to similar toC(4300). The state of the carbon vapour within the source is evaluated by using the characteristic line emissions from the carbonaceous discharge whose formative mechanisms depend upon the kinetic and potential sputtering of the sooted cathode. The carbonaceous discharge generates atomic and ionic C and its clusters C-m (m greater than or equal to 2), noble gas metastable atoms and ions, energetic electrons and photons in the cavity of the graphite hollow cathode. The parameters of soot formation and its recycling depend critically on the discharge parameters, the geometry of the hollow cathode and 3D profile of the cusp magnetic field contours.
引用
收藏
页码：309 / 318
页数：10
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