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

Volume

2

fYear

2001

fDate

2001

Firstpage

924

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

Conference_Location

Chicago, IL

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.986526

Filename

986526