Beta-function measurement and analysis at HLS

cao yong; sun bao-gen; lu ping; he duo-hui; wang jun-hua; li ji-hao; zheng pu; zhang chun-hui

Volume 17 Issue 05

May 2005

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cao yong, sun bao-gen, lu ping, et al. Beta-function measurement and analysis at HLS[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

cao yong, sun bao-gen, lu ping, et al. Beta-function measurement and analysis at HLS[J]. High Power Laser and Particle Beams, 2005, 17.

cao yong, sun bao-gen, lu ping, et al. Beta-function measurement and analysis at HLS[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

cao yong, sun bao-gen, lu ping, et al. Beta-function measurement and analysis at HLS[J]. High Power Laser and Particle Beams, 2005, 17.

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Beta-function measurement and analysis at HLS

1.
National Synchrotron Radiation Laboratory,University of Science and Technology of China,P.O.Box 6022,Hefei 230029,China

Publish Date: 2005-05-15

Abstract

Abstract

A simple measurement of beta-function is to detect the shift in the betatron tune as the strength of an individual quadrupole magnet is varied. The beta-function value obtained is a mean value respect to the length of the quadrupole. The beta-function values at 30 quadrupoles in the HLS storage ring were measured by this means. The measurement results using different calculation formulas are compared with the ideal values. Error analysis is also given. Methods to improve the precision of the measurement are put forward for the advanced measurement.
- beta-function,
- quadrupole strength,
- transport matrix,
- thin-lens

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