Application of Frequency Map Analysis to HLS GPLS Mode

WANG Xiang-Qi; HAO Hao; FENG Guang-Yao

Chinese Physics C> 2006, Vol. 30> Issue(3) : 238-241

Application of Frequency Map Analysis to HLS GPLS Mode

National Synchrotron Radiation Laboratory,University of Science and Technology of China, Hefei 230029, China

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Abstract：
For the Phase 2 of HLS (Hefei Light Source)Project, many sextupoles and octupoles have been installed in the machine to improve the operation condition. These nonlinear elements will introduce nonlinear effects to the beam dynamics. In this paper, we apply Frequency Map Analysis to the HLS ring. By analyzing the resonance lines on the tune map, we find that the calculated lattice of GPLS mode lies on the weak chaotic zone, and the operating mode is better.

References

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. Laskar J. Icarus, 1990, 88: 266—2912. Wiedemann H. Particle Accelerator Physics: Vol 2(2nd Edition). Springer, 1999. 1—103. Chao A W. SLAC-PUB-9574. 213—2164. LIU J H. HLS Bunch by Bunch Measurement System and Beam Instability Research. University of Science and Technology of China Thesis, 2005. 95—97(in Chinese)(刘建宏.HLS bunch by bunch测量系统研制及束流不稳定性初步研究,中国科学技术大学博士论文,2005. 95-97)

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WANG Xiang-Qi, HAO Hao and FENG Guang-Yao. Application of Frequency Map Analysis to HLS GPLS Mode[J]. Chinese Physics C, 2006, 30(3): 238-241.

WANG Xiang-Qi, HAO Hao and FENG Guang-Yao. Application of Frequency Map Analysis to HLS GPLS Mode[J]. Chinese Physics C, 2006, 30(3): 238-241. shu

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Received: 2005-06-15
Revised: 2005-08-16

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沈阳化工大学材料科学与工程学院沈阳 110142

Application of Frequency Map Analysis to HLS GPLS Mode

Corresponding author: WANG Xiang-Qi,

National Synchrotron Radiation Laboratory,University of Science and Technology of China, Hefei 230029, China

Received Date: 2005-06-15
Accepted Date: 2005-08-16
Available Online: 2006-03-05

Abstract: For the Phase 2 of HLS (Hefei Light Source)Project, many sextupoles and octupoles have been installed in the machine to improve the operation condition. These nonlinear elements will introduce nonlinear effects to the beam dynamics. In this paper, we apply Frequency Map Analysis to the HLS ring. By analyzing the resonance lines on the tune map, we find that the calculated lattice of GPLS mode lies on the weak chaotic zone, and the operating mode is better.