Model of an Electrical Discharge in the Flance Contacts with Omega Seals at High Currents in PEP-II.

Novokhatski, A. ; Seeman, J. ; Sullivan, M.

Technical Information Center Oak Ridge Tennessee

关键词: Electric discharges;    PEP storage rings;    Flanges;    Vacuum systems;    Accelerators;   

RP-ID  :  DE2008935307

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

During PEP-II operation with high currents in the High Energy Ring (HER), elevated temperatures were found at many locations in the vacuum chamber where they have an RF seal for the flex flange. Most of these omega RF seals were badly damaged and had evidence of metal vaporization from sparks and electrical discharge. They suggest a physical model, which may explain this effect.