A Convenient way to find an electrical insulation break of MA cores in J-PARC synchrotrons

Nomura, Masahiro ; Schnase, A.; Shimada, Taihei ; Tamura, Fumihiko ; Yamamoto, Masanobu ; Hara, Keigo*; Hasegawa, Katsushi*; Omori, Chihiro*; Toda, Makoto*; Yoshii, Masahito*

We employ magnetic alloy core loaded RF cavities for the Japan Proton Accelerator Research Complex synchrotrons to achieve a high accelerating voltage. To improve the electrical insulation of MA cores, we conceptualized a convenient way to find an electrical insulation break by measuring the DC resistance in the radial directions of MA cores. We modified the core manufacturing process by evaluating the electrical insulation of MA cores from the radial resistance data, and thus we could improve the electrical insulation of MA cores.

Language	:	English
Journal	:	Nuclear Instruments and Methods in Physics Research A
Volume	:	668
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Pages	:	p.83 - 87
Publication Year/Month	:	2012/03
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Paper URL	:	https://doi.org/10.1016/j.nima.2011.11.092
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Keywords	:	no keyword
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Registration No. : AA20110723
JAEA Abstracts No. : 40000815
Paper Submission No. : 10794

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