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
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;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440080
