| Title |
Off-axis Beam Dynamics Study in RF Photocathode Electron Sources |
| Authors |
- R. Huang, Q.K. Jia
USTC/NSRL, Hefei, Anhui, People's Republic of China
- D. Filippetto, C.E. Mitchell, C. F. Papadopoulos, H.J. Qian, J. Qiang, F. Sannibale, J.W. Staples, M. Venturini
LBNL, Berkeley, California, USA
|
| Abstract |
We report on simulations and analysis of off-axis electron emission in a high-field VHF electron gun and beam dynamics in the photoinjector downstream. The electron gun is the core of the Advanced Photoinjector Experiment at Lawrence Berkeley National Laboratory, aimed toward the development of a novel source for a high repetition rate Free Electron Laser. People may operate the drive laser away from the cathode center in some special cases. However, off-axis emitted beam will result in a growth of the projected transverse emittance due to correlations between the transverse and longitudinal degrees of freedom. In this paper, we describe simulation results which indicate that a realistic implementation of correction procedure would compensate this source of emittance growth.
|
| Funding |
Work supported by the Director of the Office of Science of the US Department of Energy under Contract no. DE-AC02-05CH11231 |
| Paper |
download WEP38.PDF [0.528 MB / 3 pages] |
| Poster |
download WEP38_POSTER.PDF [11.105 MB] |
| Conference |
ICAP2015, Shanghai, China |
| Series |
International Computational Accelerator Physics Conference (12th) |
| Proceedings |
Link to full ICAP2015 Proccedings |
| Session |
Poster Session Wollaston |
| Date |
14-Oct-15 13:30–15:30 |
| Main Classification |
B-1 Beam Dynamics Simulation |
| Keywords |
emittance, gun, cathode, solenoid, electron |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Kwok C. Ko (SLAC, Menlo Park, CA, USA); Volker R.W. Schaa (GSI, Darmstadt, Germany); Chuanxiang Tang (Tsinghua University, Beijing, China); Heping Yan (SINAP, Shanghai, China) |
| ISBN |
978-3-95450-136-6 |
| Published |
February 2016 |
| Copyright |
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