| Paper |
Title |
Page |
| THP016 |
Study of Microbunching Instability in SHINE Linac |
629 |
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- D. Huang
SINAP, Shanghai, People’s Republic of China
- D. Gu
SARI-CAS, Pudong, Shanghai, People’s Republic of China
- M. Zhang
Shanghai Advanced Research Institute, Pudong, Shanghai, People’s Republic of China
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The SHINE project in China aims at the next generation high repetation rate and high power hard X-ray free electron laser facility. The high quality electron beam is thus requested in the linac to generate such a high quality FEL lasing. As the prerequisite, the microbuncing instability introduced by the nonlinear effects such as the LSC, CSR and wakefields in the bunch compressing process must be taken care of, otherwise the electron beam will not meet the requirements of lasing. In this article, the microbunching effects including the gain of the instability in the linac of SHINE are estimated, and several ways for the control of the instability are proposed.
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Poster THP016 [0.536 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-FEL2019-THP016
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| About • |
paper received ※ 24 August 2019 paper accepted ※ 29 August 2019 issue date ※ 05 November 2019 |
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MOA05 |
First Lasing at SXFEL |
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- Z.T. Zhao, M. Gu, Q. Gu, Y.B. Leng
SSRF, Shanghai, People’s Republic of China
- H.X. Deng, B. Liu, D. Wang
SARI-CAS, Pudong, Shanghai, People’s Republic of China
- G.P. Fang, L. Yin, M. Zhang
SINAP, Shanghai, People’s Republic of China
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Shanghai soft X-ray free-electron laser (SXFEL) started its construction in December of 2014. After years of effort, first lasing at 8.8 nm with designed cascading mode is finally achieved in 2019. The commissioning progress and recent results will be reported.
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Slides MOA05 [9.952 MB]
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| WEP058 |
Drive Laser Temporal Shaping Techniques for Shanghai Soft X-Ray Free Electron Laser |
466 |
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- X.T. Wang, T. Lan, M. Zhang, W.Y. Zhang
SINAP, Shanghai, People’s Republic of China
- L. Feng, B. Liu
SARI-CAS, Pudong, Shanghai, People’s Republic of China
- C.L. Li
Shanghai Advanced Research Institute, Pudong, Shanghai, People’s Republic of China
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The design of Shanghai soft X-ray free electron laser (SXFEL) is based on laser driven photocathode, which can provide emittance <2.0 mm¿mrad with 500 pC charge. The temporal shape of drive laser has significant influence on the electron beam emittance and brightness. This paper presents the transport line of drive laser system and the temporal shaping techniques for SXFEL. This drive laser produces 8 picosecond 266nm ultraviolet pulses with repetition rate 10Hz. A transverse deflecting cavity was used for indirectly characterizing the laser pulse temporal structure. Here we present the drive laser system with its temporal shaping method, and measurement results.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-FEL2019-WEP058
|
|
| About • |
paper received ※ 20 August 2019 paper accepted ※ 28 August 2019 issue date ※ 05 November 2019 |
|
| Export • |
reference for this paper using
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