Title :
Design of a movable synchrotron radiation mask with SIC absorber for the Photon Factory Advanced Ring (PF-AR)
Author :
Takahashi, T. ; Izawa, M. ; Sakanaka, S. ; Umemori, K. ; Suzuki, H. ; Watanabe, J.
Author_Institution :
High Energy Accel. Res. Organ. (KEK), Tsukuba
Abstract :
We have six rf cavities in the photon factory advanced ring (PF-AR) at KEK. One of them was seriously damaged by the synchrotron radiation (SR) from the upstream of the cavity in 2003. In order to protect the cavities from the SR, we developed movable SR masks that have SiC absorber to protect an RF contactor from HOM of the cavity. The mask head is made of Alumina dispersion-strengthened copper to block high power from the SR. It will be installed nearby the cavities in this summer. We report the design of the movable SR masks and the results of high power test.
Keywords :
accelerator RF systems; accelerator cavities; electron accelerators; particle beam bunching; silicon compounds; storage rings; synchrotron radiation; HOM; KEK; PF-AR; RF contactor; SiC; SiC absorber; alumina dispersion; beam bunching; cavity section; copper; movable synchrotron radiation mask; photon factory advanced ring; Copper; Cutoff frequency; Electromagnetic heating; Production facilities; Protection; Radio frequency; Silicon carbide; Strontium; Surface fitting; Synchrotron radiation;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440174
