Title :
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
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;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.752854
