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Recycling effect of germanium on ECR ion source

Abstract : After running for three weeks with a 76Ge 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 76Ge13+ (enrichment 88%) was increased to 40 eμA, and the overall ionization efficiency reached 40%. The oven method of production, the recycling effect and perspectives are described in this paper.
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http://hal.in2p3.fr/in2p3-00013739
Contributor : Michel Lion Connect in order to contact the contributor
Submitted on : Tuesday, September 23, 2003 - 10:05:07 AM
Last modification on : Thursday, February 1, 2018 - 1:35:16 AM
Long-term archiving on: : Tuesday, March 30, 2010 - 5:55:40 PM

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P. Lehérissier, C. Barué, C. Canet, M. Dubois, M. Dupuis, et al.. Recycling effect of germanium on ECR ion source. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2003, 211, pp.274-280. ⟨10.1016/S0168-583X(03)01213-8⟩. ⟨in2p3-00013739⟩

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