A slit-end extraction Penning ionization gauge ion source with a permanent magnet

被引：0
|
作者：
Song, ZZ [1 ]
Yu, JX [1 ]
Dong, GC [1 ]
Zhang, J [1 ]
Wang, ZG [1 ]
Zhao, WJ [1 ]
机构：
[1] Peking Univ, Inst Heavy Ion Phys, Beijing 100871, Peoples R China
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2002年 / 73卷 / 02期
关键词：
D O I：
10.1063/1.1428781
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A new slit-end extraction Penning ionization gauge ion source with a SmCo permanent magnet has been developed. The cathode is a 5 mm diam X 25 nun long LaB6 cylinder, the anode with a hole of 8X32 mm is made in stainless steel, and the ion emission hole size on the anticathode is in a range of 14-28X2 mm for the different limited extraction current. The preliminary experiment indicated that the discharge was easy and smooth for this source. More than 10 mA of the total beam current for the positive oxygen ion has been measured at discharge current 200 mA and extraction voltage 25 kV and the milliampere magnitude of the negative oxygen ion beam can be extracted from this source. (C) 2002 American Institute of Physics.
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收藏
页码：852 / 853
页数：2
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