| Title |
Multi-bunch Operation Mode for Simultaneously Serving SASE and Seeding FEL Beamlines |
| Authors |
- X.F. Wang
Institute of Advanced Science Facilities, Shenzhen, People’s Republic of China
- X.M. Li, J.T. Sun, X.M. Yang, Y. Yu, W.Q. Zhang
DICP, Dalian, Liaoning, People’s Republic of China
- Y.F. Liang, X.M. Yang, H. Yi, L. Zeng, W.Q. Zhang
IASF, Shenzhen, Guangdong, People’s Republic of China
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| Abstract |
Modern free-electron laser (FEL) facilities are de-signed to simultaneously serve multiple undulator lines to provide x-ray pulses with high peak power and tunable wavelengths. To satisfy different scientific demands, it is preferred to make the separate undulator lines work under different FEL schemes, such as the self-amplified spontaneous emission (SASE) scheme and the echo-enabled harmonic generation (EEHG) scheme. However, different FEL schemes have differ-ent requirements on the beam longitudinal distribu-tion. Here, we propose to use multiple bunches to sim-ultaneously serve the undulator lines and put the bunches at different acceleration phase to change the bunch length with two compressor chicanes. The ac-celeration phase for each bunch is varied by adjusting the time delays of the photocathode drive laser pulses with the accelerator settings unchanged. The start-to-end simulation demonstrates that a fs bunch with high peak current can be produced to serve the SASE line while a bunch with hundred-of-fs length and uniform current distribution can be produced to serve the EEHG line. The FEL performances are simulated and discussed.
|
| Paper |
download MOPB029.PDF [0.540 MB / 4 pages] |
| Cite |
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| Conference |
SAP2023 |
| Series |
Symposium on Accelerator Physics (14th) |
| Location |
Xichang, China |
| Date |
10-12 July 2023 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Volker RW Schaa (GSI, Darmstadt, Germany); Wenhui Huang (TUB, Beijing, China); Xueqing Yan (PKU, Beijing, China); Chuanxiang Tang (TUB, Beijing, China); Lu Li (IMP, Lanzhou, China) |
| Online ISBN |
978-3-95450-265-3 |
| Received |
25 June 2023 |
| Revised |
10 July 2023 |
| Accepted |
11 July 2023 |
| Issued |
07 September 2024 |
| DOI |
doi:10.18429/JACoW-SAP2023-MOPB029 |
| Pages |
66-69 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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