Proceedings of the 1st Annual Meeting of Particle Accelerator Society of Japanand the 29th Linear Accelerator Meeting in Japan (August 4 - 6, 2004, Funabashi Japan)

Present Status of the Vacuum System for S-LSR
H.Tongu A), M.Ikegami A), Y.Iwashita A), S.Shibuya C) , T.Shirai A), A.TakuboC) T.Takeuchi B),
M.Tanabe A), A.Noda A), K.Noda B), H.Fadil A), S.FujimotoA),A)
Institute for Chemical Research, Kyoto University, Gokanosyo, Uji-City, 611-0011, Kyoto, JapanB)
National Institute of Radiological Science, 4-9-1, Inage-Ku, Chiba-City 263-8555, Chiba, JapanC)
Accelerator Engineering Corporation, 4-9-1, Inage-Ku, Chiba-City 263-8555, Chiba, Japan
Abstract
S-LSR is a compact ion storage and cooler ring for R&D of the accelerator for the medical treatment. The
development and study of the vacuum system for S-LSR is presented. The beam ducts in the arc sections are applied thetreatment of pre-baking with 950 °C. As the result, the rate of outgassing of ~ 3x10-10 Pa⋅m3⋅s-1⋅m-2in the beam duct isexpected to be obtained and the average vacuum pressure can be estimated to be 5x10-9 Pa. In this condition, the beam
lifetime of Mg beam (35keV) will become to be over 10 sec.

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Proceedings of the 1st Annual Meeting of Particle Accelerator Society of Japanand the 29th Linear Accelerator Meeting in Japan (August 4 - 6, 2004, Funabashi Japan)

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Proceedings of the 1st Annual Meeting of Particle Accelerator Society of Japanand the 29th Linear Accelerator Meeting in Japan (August 4 - 6, 2004, Funabashi Japan)

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CERN Accelerator School vacuum technology,(1999) 155-163.
[4] D. Habs et al., “First Experiment with the Heidelberg
Test Storage Ring TSR”, NIM. B43, (1989) 390-410

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