Beam dynamics studies of the photo-injector in low-charge operation mode for the ERL test facility at IHEP

JIAO Yi; XIAO Ou-Zheng

doi:10.1088/1674-1137/38/6/067003

Chinese Physics C> 2014, Vol. 38> Issue(6) : 067003 DOI: 10.1088/1674-1137/38/6/067003

Beam dynamics studies of the photo-injector in low-charge operation mode for the ERL test facility at IHEP

JIAO Yi ,
XIAO Ou-Zheng

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Abstract：
The energy recovery linac test facility (ERL-TF), which is a compact ERL-FEL (free electron laser) two-purpose machine, was proposed at the Institute of High Energy Physics, Beijing. As one important component of the ERL-TF, the photo-injector that started with a photocathode direct-current gun has been designed. In this paper, optimization of the injector beam dynamics in low-charge operation mode is performed with iterative scans using Impact-T. In addition, the dependencies between the optimized beam quality and the initial offset at cathode and element parameters are investigated. The tolerance of alignment and rotation errors is also analyzed.

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JIAO Yi and XIAO Ou-Zheng. Beam dynamics studies of the photo-injector in low-charge operation mode for the ERL test facility at IHEP[J]. Chinese Physics C, 2014, 38(6): 067003. doi: 10.1088/1674-1137/38/6/067003

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Received: 2013-07-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Beam dynamics studies of the photo-injector in low-charge operation mode for the ERL test facility at IHEP

JIAO Yi
XIAO Ou-Zheng

Received Date: 2013-07-01
Accepted Date: 1900-01-01
Available Online: 2014-06-05

Abstract: The energy recovery linac test facility (ERL-TF), which is a compact ERL-FEL (free electron laser) two-purpose machine, was proposed at the Institute of High Energy Physics, Beijing. As one important component of the ERL-TF, the photo-injector that started with a photocathode direct-current gun has been designed. In this paper, optimization of the injector beam dynamics in low-charge operation mode is performed with iterative scans using Impact-T. In addition, the dependencies between the optimized beam quality and the initial offset at cathode and element parameters are investigated. The tolerance of alignment and rotation errors is also analyzed.