Simulation studies on two-frequency RF gun

Da LI; Wen-Cheng FANG; Qiang GU; Zhen WANG; Meng ZHANG; Jian-Hao TAN; Chao-Peng WANG; Zhen-Tang ZHAO

doi:10.13538/j.1001-8042/nst.25.040101

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Simulation studies on two-frequency RF gun

SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS | Updated：2021-01-20

- Simulation studies on two-frequency RF gun
- Nuclear Science and Techniques Vol. 25, Issue 4, Article number: 040101(2014)
- Affiliations：
  
  1.Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai201800, China
  2.University of Chinese Academy of Sciences, Beijing100039, China
- Author bio：
  
  Corresponding author, zhaozhentang@sinap.ac.cn
- Funds：
- DOI：10.13538/j.1001-8042/nst.25.040101
  CLC：
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Da LI, Wen-Cheng FANG, Qiang GU, et al. Simulation studies on two-frequency RF gun. [J]. Nuclear Science and Techniques 25(4):040101(2014)
DOI：

Da LI, Wen-Cheng FANG, Qiang GU, et al. Simulation studies on two-frequency RF gun. [J]. Nuclear Science and Techniques 25(4):040101(2014) DOI： 10.13538/j.1001-8042/nst.25.040101.

摘要

Abstract

Photocathode RF gun is widely used for particle accelerators as an electron source. When driving an RF electron gun at the fundamental frequency and a higher harmonic frequency simultaneously with proper field ratio and relative phase, it generates electron beams of ultralow emittance and a linear longitudinal phase space distribution. Such a gun provides high quality electron beam with low energy spread, small traverse emittance and high brightness. In this paper, the RF design of a 1.5 cell cavity is presented. Simulation results of beam dynamics for the two-frequency gun and a standard single-frequency RF gun are also shown in this paper. In addition, bunch compression with a two-frequency gun is explored.

关键词

Keywords

RF gunTwo-frequencyTraverse emittanceEmittance compensationEnergy spreadBunch compression

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