Title :
Development of a movable plunger tuner for the high-power RF cavity for the PEP-II B factory
Author :
Schwarz, H.D. ; Fant, K. ; Judkins, J.G. ; Neubauer, M. ; Rimmer, R.A.
Author_Institution :
Linear Accel. Center, Stanford Univ., CA, USA
Abstract :
A 10 cm diameter by 5 cm travel plunger tuner was developed for the PEP-II RF copper cavity system. The single cell cavity including the tuner is designed to operate up to 150 kW of dissipated RF power. Spring finger contacts to protect the bellows from RF power are specially placed 8.5 cm away from the inside wall of the cavity to avoid fundamental and higher order mode resonances. The spring fingers are made of dispersion-strengthened copper to accommodate relatively high heating. The design, alignment, testing and performance of the tuner is described
Keywords :
accelerator RF systems; accelerator cavities; electron accelerators; storage rings; tuning; 10 cm; 150 kW; B factory; Cu; PEP-II; RF power; dispersion-strengthened Cu; high-power RF cavity; plunger tuner; single cell cavity; spring finger contacts; Bellows; Copper; Fingers; Heating; Power system protection; Radio frequency; Resonance; Springs; Testing; Tuners;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.753101
