Title :
An RF cavity for the NLC damping rings
Author :
Rimmer, R.A. ; Atkinson, D. ; Corlett, J.N. ; Koehler, G. ; Li, D. ; Hartman, N. ; Rasson, J. ; Saleh, T. ; Weidenbach, R.
Author_Institution :
Lawrence Berkeley Nat. Lab., CA, USA
Abstract :
We report on the design and development of a strongly HOM damped copper RF cavity for the NLC damping rings. The cavity is based on the successful PEP-II RF cavity but incorporates many simplifications and improvements. The cavity is designed for a frequency of 714 MHz, gap voltage of 500 kV and beam current of 800 mA. We present the RF design and HOM impedance calculations done in MAFIA, the RF, thermal and stress analyses performed in ANSYS and the simplified mechanical design and assembly process. Designs for the RF window, HOM loads and tuners are described. Options, for increasing the stored energy or further lowering the HOM impedance are discussed. This design could easily be scaled up or down in frequency and could be useful for other projects such as new light sources
Keywords :
X-ray production; accelerator RF systems; accelerator cavities; copper; electron accelerators; electron beams; high energy physics instrumentation computing; particle beam diagnostics; storage rings; 500 kV; 714 MHz; 800 mA; ANSYS; Cu; HOM impedance calculations; MAFIA code; NLC damping rings; RF analysis; beam current; gap voltage; radiofrequency cavity; stress analysis; strongly HOM damped copper RF cavity; thermal analysis; tuners; Assembly; Copper; Damping; Impedance; Performance analysis; Process design; Radio frequency; Thermal stresses; Tuners; Voltage;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.986526
