SOME OBSERVATIONS OF THE EFFECT OF MAGNETIC-FIELD AND ARC CURRENT ON THE VACUUM ARE ION CHARGE-STATE DISTRIBUTION

被引:31
作者
PAOLONI, FJ [1 ]
BROWN, IG [1 ]
机构
[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720
关键词
D O I
10.1063/1.1145448
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The charge state distribution of ions produced in a vacuum are plasma has been investigated for cathode materials Ti, Sn, and Pt as a function of are current and magnetic field strength in which the are is located. A vacuum are ion source was used in combination with a time-of-flight charge state diagnostic. It was found that the are impedance and the ion charge states increase substantially with magnetic field strength. While there was effectively no variation of charge state distribution with are current for the case of zero applied field, there was a significant increase in the charge states with are current when the applied magnetic field was 1 kG. (C) 1995 American Institute of Physics.
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页码:3855 / 3858
页数:4
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