Ion Charge State Distribution in Vacuum Arc Plasmas for Composite Sn-Pb Cathodes

被引：0
|
作者：
Frolova, V. P. [1 ]
Nikolaev, A. G. [1 ]
Oks, E. M. [1 ,2 ]
Yushkov, G. Yu. [1 ]
机构：
[1] Inst High Current Elect SB RAS, 2-3 Akad Sky Ave, Tomsk 634055, Russia
[2] Tomsk State Univ Control Syst & Radioelect, 40 Lenin Ave, Tomsk 634050, Russia
来源：
PROCEEDINGS OF THE 27TH INTERNATIONAL SYMPOSIUM ON DISCHARGES AND ELECTRICAL INSULATION IN VACUUM (ISDEIV), VOL 1 | 2016年
基金：
俄罗斯科学基金会;
关键词：
ENHANCEMENT; GAS;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The report presents experimental results on the parameters of vacuum arc plasmas produced with composite Sn-Pb cathodes differing in atomic composition. The plasma was generated on a Mevva-V. Ru ion source. The mass-charge state of the plasma was studied using a time-of-flight spectrometer. The plasma parameters were compared with those for pure Sn and Pb cathodes. It is shown that the ion fraction of each cathode component in the plasma corresponds to its atomic fraction in the cathode material. The charge state of ions of both components is determined by the average electron temperature in the cathode spot plasma. The mean ion charge state for pure cathodes is higher than that for composite Sn-Pb cathodes. The physics of the observed effects is discussed.
引用
收藏
页码：306 / 308
页数：3
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