DocumentCode :
882487
Title :
Reduction of Multipacting in an Accelerator Cavity
Author :
Boni, R. ; Chimenti, V. ; Fernandes, P. ; Parodi, R. ; Spataro, B. ; Tazzioli, F.
Author_Institution :
Laboratori Nazionali di Frascati dell´´INFN, C.P.13, 00044 Frascati, Italy
Volume :
32
Issue :
5
fYear :
1985
Firstpage :
2815
Lastpage :
2817
Abstract :
The choice of a suitable geometry in designing a radio-frequency cavity for e+ e- storage ring allows the reduction of multipacting (MP) discharges. We have studied the behaviour of resonant electron discharges in the RF cavity of the Adone storage ring in Frascati, that shows a broad MP barrier in the 35 to 70 kV range of the accelerating voltage. It can be explained by one point MP on the end-plates of the resonator. Our computer simulations of the trajectories of electrons in the RF fields of the cavity clearly show multipacting trajectories in that region of the cavity at about that field level. On the base of our experimental measurements and simulations, the design of a new RF cavity, multipactor free in the end-plates region, is presented.
Keywords :
Aluminum; Computational modeling; Electrons; Geometry; Radio frequency; Resonance; Shape; Storage rings; Surface treatment; Voltage;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.1985.4334191
Filename :
4334191
Link To Document :
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