Chinese Physics C > 2006, Vol. 30 > Issue(10): 1018-1021

Application of the Turn-by-Turn Beam Position Measurements on BEPC Storage Ring

Institute of High Energy Physics, CAS, Beijing 100049, China2 National Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China

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Abstract：
This paper introduces the turn-by-turn beam position measurements on BEPC storage ring, with the bunch-by-bunch system developed by HLS. The oscillation of the beam transverse position in each turn, the motion in phase space and the transverse damping time can be acquired. With the NAFF method, we could precisely analyze the beam frequency, and furthermore, could research on the beam tune shift. In particular, the resonance phenomenon induced by chromaticity sextupoles, which occurs under special work points, is observed and analyzed.

References

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JIAO Yi, ZHANG Lei, WANG Jiu-Qing, YUE Jun-Hui, CAO Jian-She, WANG Jun-Hua and ZHENG Kai. Application of the Turn-by-Turn Beam Position Measurements on BEPC Storage Ring[J]. Chinese Physics C, 2006, 30(10): 1018-1021.

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Received: 2006-01-17
Revised: 2006-03-07

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沈阳化工大学材料科学与工程学院沈阳 110142

Application of the Turn-by-Turn Beam Position Measurements on BEPC Storage Ring

Corresponding author:JIAO Yi,

Institute of High Energy Physics, CAS, Beijing 100049, China2 National Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China

Received Date:2006-01-17
Accepted Date:2006-03-07
Available Online:2006-10-05

Abstract:This paper introduces the turn-by-turn beam position measurements on BEPC storage ring, with the bunch-by-bunch system developed by HLS. The oscillation of the beam transverse position in each turn, the motion in phase space and the transverse damping time can be acquired. With the NAFF method, we could precisely analyze the beam frequency, and furthermore, could research on the beam tune shift. In particular, the resonance phenomenon induced by chromaticity sextupoles, which occurs under special work points, is observed and analyzed.