Commissioning the photocathode radio frequency gun: a candidate electron source for Hefei Advanced Light Facility

Wen-Xing Wang; Cheng Li; Zhi-Gang He; Shan-Cai Zhang; Rui-Xuan Huang; Wei-Wei Li; Ping Lu; Chuan Li; Lei-Lei Tang; Feng-Lei Shang; Fang-Fang Wu; Da-Chun Jia; Hai-Yan Zhang; Wei Wang

doi:10.1007/s41365-022-01000-6

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Commissioning the photocathode radio frequency gun: a candidate electron source for Hefei Advanced Light Facility

SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS | Updated：2022-05-17

- Commissioning the photocathode radio frequency gun: a candidate electron source for Hefei Advanced Light Facility
- Nuclear Science and Techniques Vol. 33, Issue 3, Article number: 23(2022)
- Affiliations：
  
  1.National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
- Author bio：
  
  hezhg@ustc.edu.cn
  shancai@ustc.edu.cn
- Funds：
- DOI：10.1007/s41365-022-01000-6
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Wen-Xing Wang, Cheng Li, Zhi-Gang He, et al. Commissioning the photocathode radio frequency gun: a candidate electron source for Hefei Advanced Light Facility. [J]. Nuclear Science and Techniques 33(3):23(2022)
DOI：

Wen-Xing Wang, Cheng Li, Zhi-Gang He, et al. Commissioning the photocathode radio frequency gun: a candidate electron source for Hefei Advanced Light Facility. [J]. Nuclear Science and Techniques 33(3):23(2022) DOI： 10.1007/s41365-022-01000-6.

摘要

Abstract

The Hefei Advanced Light Facility (HALF) proposed by the National Synchrotron Radiation Laboratory (NSRL) is a Diffraction Limited Storage Ring (DLSR), which plans to use a full energy linac as the injector. To ensure injection efficiency, the injection beam needs to have low emittance. Therefore, a photocathode radio frequency (RF) gun was developed in the HALF R,&,D project. The gun is designed to deliver high-quality electron bunches with a typically 0.5 nC charge and ,∼, 4.5 MeV energy with low emittance. The initial system commission with an electron beam was completed at the end of 2020, and a stable 1.2 –1.4 mm ,⋅, mrad emittance with a bunch charge of 500 pC was demonstrated. In this paper, we report the experimental results and experience obtained during the commission, including the RF gun, drive laser system, and beam diagnostics.

关键词

Keywords

High brightness electron beamPhotoinjector laser shapingTransverse emittance

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