Development of high-power ARES cavities

Author

Kageyama, T. ; Akai, K. ; Akasaka, N. ; Ezura, E. ; Mizuno, H. ; Naito, F. ; Nakanishi, H. ; Sakai, H. ; Takeuchi, Y. ; Yamazaki, Y. ; Kobayashi, T.

Author_Institution

KEK High Energy Accel. Res. Org., Tsukuba, Japan

Volume

3

fYear

1997

fDate

12-16 May 1997

Firstpage

2902

Abstract

The ARES (Accelerator Resonantly coupled with Energy Storage) structure is a three-cavity system operated in the π/2 mode, where a HOM-damped accelerating cavity is coupled with an energy storage cavity via a coupling cavity equipped with a coaxial antenna damper to reduce the impedances of the parasitic 0 and π modes. Two high-power prototypes with different HOM-damping schemes have been developed, where one is with a quadrupole counter-mixing (QCM) choke structure and the other with grooved beam pipe one. Both prototypes have been tested with an electron beam of about 500 mA in the TRISTAN accumulation ring. This paper reports their RF structures together with some results of the high-power and high-current beam tests

Keywords

accelerator cavities; electron accelerators; storage rings; Accelerator Resonantly coupled with Energy Storage; HOM-damped accelerating cavity; RF structures; TRISTAN accumulation ring; coaxial antenna damper; energy storage cavity; grooved beam pipe; high-current beam tests; high-power ARES cavities; high-power beam tests; high-power prototypes; quadrupole counter-mixing choke structure; three-cavity system; Acceleration; Coaxial components; Couplings; Electron beams; Energy storage; Impedance; Inductors; Prototypes; Resonance; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1997. Proceedings of the 1997

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-4376-X

Type

conf

DOI

10.1109/PAC.1997.752854

Filename

752854