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

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...

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Bibliographic Details
Published in:Chinese physics C 2014-06, Vol.38 (6), p.86-92
Main Author: 焦毅 肖欧正
Format: Article
Language:English
Subjects:
Dynamic tests
Dynamics
ERL
Free electron lasers
Injectors
Optimization
Photocathodes
Test facilities
Tolerances
喷油器
收费
束流动力学
测试设备
自由电子激光器
运营
高能物理研究所
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Summary: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.
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/38/6/067003