Design and Cold Model Test of 500 MHz Damped Cavity for ASP Storage Ring RF System

J Watanabe,G.S Leblanc,K Nakayama,N Nakamura,H Sakai,K Sato,T Koseki,H Suzuki,H Takaki,K Zingre,A Jackson,M Izawa

doi:10.1109/pac.2005.1591369

Design and Cold Model Test of 500 MHz Damped Cavity for ASP Storage Ring RF System

J Watanabe, G.S Leblanc + Show 10 more

https://doi.org/10.1109/pac.2005.1591369

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Publication Date: May 16, 2005

Citations: 9

Affiliation: Toshiba (Japan), Tokyo University of Information Sciences, The University of Tokyo, Australian Synchrotron, High Energy Accelerator Research Organization

#Higher Order Mode #Storage Ring RF System + Show 8 more

Abstract
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Abstract

TOSHIBA is manufacturing the storage ring RF system for the Australian Synchrotron Project(ASP). Two pairs of the 500MHz Higher Order Mode(HOM) damped cavities will be applied for this system. The cavity is a modified KEK-PF type with silicon-carbide(SiC) microwave absorber and has three rod-shaped HOM couplers for damping the longitudinal HOM impedance less than 20kΩ/GHz to comply with ASP Performance Specification. The shunt impedance has been improved more than 5% in comparison with the original design by reducing the beam bore diameter without degrading HOM damping capability. The design of the cavity and the test results of an aluminum (Al) cold model are described.

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