Power coupler development for ERL main linac in Japan

Sakai, Hiroshi*; Furuya, Takaaki*; Sakanaka, Shogo*; Takahashi, Takeshi*; Umemori, Kensei*; Ishii, Atsushi*; Nakamura, Norio*; Shinoe, Kenji*; Sawamura, Masaru

We started to develop an input power coupler for a 1.3 GHz ERL superconducting cavity for main linac. We fabricated power coupler components such as ceramic windows and bellows and carried out the high-power test of the components by using a CW 30 kW IOT power source. During this test, the ceramic window was broken by the sudden heat load. We found that this heat load occurred by the unexpected dipole mode. We renewed the ceramic window and successfully carried out the high power test up to CW 27 kW input power.

Language	:	English
Journal	:	Proceedings of 1st International Particle Accelerator Conference (IPAC '10) (Internet)
Volume	:
Number	:
Pages	:	p.2953 - 2955
Publication Year/Month	:	2010/05
Meeting title	:	1st International Particle Accelerator Conference (IPAC '10)
Held date	:	2010/05
Location (city)	:	Kyoto
Location (country)	:	Japan
Patent information	:
PDF	:
Paper URL	:	http://accelconf.web.cern.ch/AccelConf/IPAC10/papers/wepec029.pdf
DOI for research data	:
Keywords	:	no keyword
Research Facility	:
Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:	文部科学省

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Registration No. : BB20101059
JAEA Abstracts No. :
Paper Submission No. : 11040

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