IBIC2020 - List of Authors (Sun, B.G.)

Paper	Title	Page
WEPP26	Effect of phase modulation on the transverse beam size and emittance of the HLS-II ring	158
	Y.K. Zhao, S.S. Jin, B.G. Sun, J.G. Wang, F.F. Wu USTC/NSRL, Hefei, Anhui, People’s Republic of China
	In this paper, the radio-frequency (RF) phase modulation method is exploited to investigate the variations in the transverse beam size and emittance at Hefei Light Source (HLS-II). Meanwhile, a certain quantitative analysis was performed on the stability and practicability of the beam transverse profile measurement systems. The experiments show that the RF phase modulation method can effectively explore the robustness and stability of beam transverse profile measurement systems over the range of 20.0-22.5 kHz, which is close to the first-harmonic of the synchrotron frequency. It is concluded that when the modulation amplitude of the external phase perturbation is less than 0.04 rad, this optical system can be capable of maintaining reliable and stable working status. This is also useful for analyzing the influence of RF phase noise on the subsequent beam measurement and diagnostics, which including the deterioration of beam quality, emittance blowup, beam jitter, and beam loss.
	Poster WEPP26 [2.080 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2020-WEPP26
About •	paper received ※ 18 August 2020 paper accepted ※ 14 September 2020 issue date ※ 30 October 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Effect of phase modulation on the transverse beam size and emittance of the HLS-II ring

158

Y.K. Zhao, S.S. Jin, B.G. Sun, J.G. Wang, F.F. Wu
USTC/NSRL, Hefei, Anhui, People’s Republic of China

In this paper, the radio-frequency (RF) phase modulation method is exploited to investigate the variations in the transverse beam size and emittance at Hefei Light Source (HLS-II). Meanwhile, a certain quantitative analysis was performed on the stability and practicability of the beam transverse profile measurement systems. The experiments show that the RF phase modulation method can effectively explore the robustness and stability of beam transverse profile measurement systems over the range of 20.0-22.5 kHz, which is close to the first-harmonic of the synchrotron frequency. It is concluded that when the modulation amplitude of the external phase perturbation is less than 0.04 rad, this optical system can be capable of maintaining reliable and stable working status. This is also useful for analyzing the influence of RF phase noise on the subsequent beam measurement and diagnostics, which including the deterioration of beam quality, emittance blowup, beam jitter, and beam loss.

Poster WEPP26 [2.080 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2020-WEPP26

About •

paper received ※ 18 August 2020 paper accepted ※ 14 September 2020 issue date ※ 30 October 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)