PAC09 - List of Authors (Aoki, M.)

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Aoki, M.

Paper	Title	Page
TH5RFP050	Measurements of Proton Beam Extinction of J-PARC MR Synchrotron	3564
	K. Yoshimura, Y. Hashimoto, Y. Igarashi KEK, Tsukuba M. Aoki Osaka University, Osaka
	Proton beam extinction, defined as a ratio of the residual and the pulse beam intensity, should be less than 10^-9, which is one of the key requirements to realize the future muon electron conversion experiment (COMET) proposed at J-PARC. Measurement of the pulse timing structure with enough sensitivity is the first step to achieve the required extinction level. We have developed two methods for the measurements; one by using fast-extracted beam and the other by using slow-resonant-extracted beam. This paper describes the schemes and the results of the measurements. These measurements would provide important information on the beam pulse structure to understand not only for MR beam but also the whole accelelator complex, including LINAC and booster RCS. Submitted on behalf of the muon working group

Paper

Title

Page

TH5RFP050

Measurements of Proton Beam Extinction of J-PARC MR Synchrotron

3564

K. Yoshimura, Y. Hashimoto, Y. Igarashi
KEK, Tsukuba
M. Aoki
Osaka University, Osaka

Proton beam extinction, defined as a ratio of the residual and the pulse beam intensity, should be less than 10^-9, which is one of the key requirements to realize the future muon electron conversion experiment (COMET) proposed at J-PARC. Measurement of the pulse timing structure with enough sensitivity is the first step to achieve the required extinction level. We have developed two methods for the measurements; one by using fast-extracted beam and the other by using slow-resonant-extracted beam. This paper describes the schemes and the results of the measurements*. These measurements would provide important information on the beam pulse structure to understand not only for MR beam but also the whole accelelator complex, including LINAC and booster RCS.

*Submitted on behalf of the muon working group