yang guisen, leng yongbin, yuan renxian, et al. Beam instabilities based on spectrum of turn-by-turn position[J]. High Power Laser and Particle Beams, 2011, 23.
Citation:
yang guisen, leng yongbin, yuan renxian, et al. Beam instabilities based on spectrum of turn-by-turn position[J]. High Power Laser and Particle Beams, 2011, 23.
yang guisen, leng yongbin, yuan renxian, et al. Beam instabilities based on spectrum of turn-by-turn position[J]. High Power Laser and Particle Beams, 2011, 23.
Citation:
yang guisen, leng yongbin, yuan renxian, et al. Beam instabilities based on spectrum of turn-by-turn position[J]. High Power Laser and Particle Beams, 2011, 23.
Spectrum of excited electron beam position was analyzed to determine tune value and quality factor in Shanghai Synchrotron Radiation Facility(SSRF). Vertical impedance and transverse damping rate of SSRF storage ring were educed. In light of these results, sources of beam instability are discussed and characteristics of the motion of excited single bunch are presented. Frequency response function of RLC circuit was used to fit peaks in the spectrum of beam position signal. Based on the fitting results, quality factor, which represents damping state of the motion, dispersion of frequency, and degree of instability, was acquired. Experiment results show that, the correlation of fitted data and original data can be up to 98%, and the profile of fitted figure is quite similar to original one,
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