Analysis of RFQ vacuum system for HINS tests at MDB

[摘要] The arrangement of RFQ vacuum system is briefly described. The projections of the vacuum level using standard out-gassing rates for the RFQ major components are compared with measurements. The permeation of water through the Viton O-rings of the LCW manifold inside the RFQ vacuum vessel is analyzed and compared with RGA data. A model where the out-gassing water from the vanes inner surfaces affects seriously RFQ operation is devised and compared with RFQ performance. The rate of a hydrogen gas spill from the LEBT into the RFQ vacuum space is also projected. Suggestions to correct and improve RFQ operation are presented.

[发布日期] 2009-07-01

[学科分类] 核物理和高能物理

[关键词] GAS SPILLS;GASKETS;HYDROGEN;PERFORMANCE;VACUUM SYSTEMS;VANES;VITON;WATER Accelerators