Recycling effect of germanium on ECR ion source

被引:2
|
作者
Lehérissier, P [1 ]
Barué, C [1 ]
Canet, C [1 ]
Dubois, M [1 ]
Dupuis, M [1 ]
Flambard, JL [1 ]
Gaubert, G [1 ]
Jardin, P [1 ]
Lecesne, N [1 ]
Lemagnen, F [1 ]
Leroy, R [1 ]
Pacquet, JY [1 ]
机构
[1] GANIL, Grp Prod Ions, F-14076 Caen 5, France
关键词
D O I
10.1016/S0168-583X(03)01213-8
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
After running for three weeks with a Ge-76 beam provided by the ECR-4 ion source at GANIL we have investigated the recycling effect of an SF6 plasma. The initial beam was produced by the classical method, using germanium dioxide in our micro-oven and helium as support gas. The overall ionization efficiency was measured and found to be around 3%. Without the oven, and using SF6 instead of helium, the ECR-4 ion source has been able to produce a very stable beam during a two-week period. The intensity of Ge-76(13+) (enrichment 88%) was increased to 40 e muA, and the overall ionization efficiency reached 40%. The oven method of production, the recycling effect and perspectives are described in this paper. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:274 / 280
页数:7
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