Stable top-up operation at SPring-8
نویسندگان
چکیده
منابع مشابه
Stable top-up operation at SPring-8.
Top-up operation allows SPring-8 to provide highly stable X-ray beams with arbitrary filling patterns. The implementation of top-up operation is described, with a focus on the simultaneous achievement of stability of stored current, beam orbit, purity of an isolated single bunch, and beam injection efficiency. Stored-current fluctuations have been routinely reduced to a level of 10(-3). Stored-...
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We have succeeded in providing stable and three-times more brilliant x-ray beams to users by combining top-up operation with low-emittance optics. The optics with the low emittance of 3nmrad was firstly applied to the user operation in November 2002. Although the low emittance provided the brilliant x-ray, the extremely short beam lifetime much disturbed the precise experiments. Moreover, the a...
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The Advanced Photon Source (APS) is a 7-GeV, thirdgeneration synchrotron radiation source. To provide more stable beam for users, in September 1998 we began commissioning a new operating mode called “top-up.” In this mode, the beam current does not decay but is maintained at a high level using frequent injection, while photon shutters are open and photon beams are delivered to users. The hardwa...
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The routine top-up operation of Taiwan Light Source (TLS) began in October 2005. The beam stability and integrated flux were drastically improved. Various diagnostics are needed to support the top-up operation. These tools include diagnostics for measuring beam charge and current and injection efficiency, as well as a filling pattern monitor, a tune monitor, and an instability and loss pattern ...
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After three years of upgrading work, PLS-II (S. Shin, Commissioning of the PLS-II, JINST, January 2013) is now successfully operating. The top-up operation of the 3 GeV linear accelerator had to be delayed because of some challenges encountered, and PLS-II was run in decay mode at the beginning in March 2012. The main difficulties encountered in the top-up operation of PLS-II are different leve...
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ژورنال
عنوان ژورنال: Journal of Synchrotron Radiation
سال: 2006
ISSN: 0909-0495
DOI: 10.1107/s0909049506022862