NDLI: Vacuum conditioning and beam lifetime of the SPring-8 storage ring

Content Provider	IEEE Xplore Digital Library
Author	Kumagai, N. Noda, T. Ohkuma, H. Oishi, M. Saeki, H. Soutome, K. Suzuki, Y. Takao, M. Tanaka, H. Taniuchi, Y. Watanabe, K.
Copyright Year	1999
Description	Author affiliation: JASRI, Hyogo, Japan (Kumagai, N.)
Abstract	The installation of the vacuum system of the SPring-8 storage ring was completed during 1996. Most of the vacuum chambers are made of aluminum alloy. The main pumping system is a mixed one consisting of NEG strips, DIP, SIP, and LNP. In addition to the standard treatments for ultrahigh vacuum components, a dust-controlled procedure was adopted in the manufacturing and the installation processes. Beam commissioning of the SPring-8 storage ring started in March 1997. Since then an integrated beam dose of 190 Ah has been achieved up to now, and correspondingly, the dynamic pressure rise per stored beam current (P/I) decreased by two orders of magnitude. In the multi-bunch mode a lifetime of 65 hours at 70 mA were achieved after two years' operation.
Starting Page	2352
Ending Page	2354
File Size	245224
Page Count	3
File Format	PDF
ISBN	0780355733
DOI	10.1109/PAC.1999.792688
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-03-27
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Storage rings Vacuum systems Strips Laser excitation Electronics packaging Aluminum alloys Strontium Electrons Valves Thermal conductivity
Content Type	Text
Resource Type	Article

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