DocumentCode
2880226
Title
Modeling of the sparks in Q2-bellows of the PEP-II SLAC B-factory
Author
Novokhatski, A. ; Seeman, J. ; Sullivan, M.
Author_Institution
SLAC, Menlo Park
fYear
2007
fDate
25-29 June 2007
Firstpage
4213
Lastpage
4215
Abstract
The PEP-II B-factory at SLAC has recently experienced unexpected aborts due to anomalously high radiation levels at the BaBar detector. Before the problem was finally traced, we performed a wake field analysis of the Q-2 bellows, which is located at a distance of 2.2 m from the interaction point. Analysis showed that the electric field in a small gap between a ceramic tile and metal flange can be high enough to produce sparks or even breakdowns. Later traces of sparks were found in this bellows.
Keywords
beam handling equipment; beam handling techniques; storage rings; PEP-II SLAC B-factory; Q2-bellows; spark production; wake field analysis; Bellows; Ceramics; Electric breakdown; Electromagnetic fields; Flanges; Radiation detectors; Seals; Sparks; Tiles; Vacuum breakdown;
fLanguage
English
Publisher
ieee
Conference_Titel
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location
Albuquerque, NM
Print_ISBN
978-1-4244-0916-7
Type
conf
DOI
10.1109/PAC.2007.4440080
Filename
4440080
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