Analysis of RFQ vacuum system for HINS tests at MDB

Piekarz, Henryk

Fermi National Accelerator Laboratory

关键词: Vacuum Systems;    Vanes;    Gaskets;    43 Particle Accelerators;    Water Accelerators;   

DOI  :  10.2172/962753
RP-ID  :  FERMILAB-TM-2436-APC
RP-ID  :  AC02-07CH11359
RP-ID  :  962753

美国|英语

来源: UNT Digital Library

【 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.