Measurement of beam position monitor using HOM couplers of superconducting cavities

Sawamura, Masaru

The offset beam from the axis induces the HOMs in the cavities. These HOMs in superconducting cavities are usually damped by HOM couplers to suppress the beam instability. The induced HOM power is proportional to the beam offset and can be used to measure the beam position inside the cavity. The steering magnet is installed to the JAEA superconducting ERL-FEL to vary the beam position. The HOM power from the HOM coupler with various beam position is measured. The result of the beam test is presented.

Language	:	English
Journal	:	Proceedings of 2007 Particle Accelerator Conference (PAC '07) (Internet)
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Pages	:	p.4060 - 4062
Publication Year/Month	:	2007/06
Meeting title	:	2007 Particle Accelerator Conference (PAC '07)
Held date	:	2007/06
Location (city)	:	Albuquerque
Location (country)	:	U.S.A.
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Registration No. : BB20070859
JAEA Abstracts No. :
Paper Submission No. : 6088

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