Beam-performance improvement of the SPring-8 storage ring

Author

Ohkuma, H. ; Date, S. ; Masaki, M. ; Nakamura, T. ; Ohshima, T. ; Soutome, K. ; Takano, S. ; Tamura, K. ; Takao, M. ; Tanaka, H. ; Kumagai, N.

Author_Institution

SPring-8, Hyogo, Japan

Volume

2

fYear

2003

fDate

12-16 May 2003

Firstpage

881

Abstract

The SPring-8 storage ring has improved its reliability and beam performance. At the beginning of year 2001, a project of beam orbit stabilization started aiming for the stability of sub-micron. By two years´ activities, we have taken a remarkable progress on improvement of the orbit stability of the SPring-8 storage ring. Recently, optics of the ring was changed from the Double Bend Achromat type to new one with finite dispersion at the straight section for insertion devices. The horizontal emittance of 3 nm.rad was obtained which is close to the theoretical value. To increase time-averaged brilliance in several bunch operation, we have prepared a top-up operation in user time from September 2003. In this paper, the operational status and recent beam performance of the SPring-8 storage ring are presented.

Keywords

electron accelerators; electron optics; particle beam bunching; particle beam stability; storage rings; SPring-8 storage ring; beam orbit stabilization; beam-performance improvement; bunch operation; finite dispersion type optics; insertion devices; operational status; Cooling; Filling; Fluctuations; Intrusion detection; Optical devices; Stability; Statistics; Stimulated emission; Storage rings; Undulators;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1289514

Filename

1289514