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| Content Provider | Springer Nature Link |
|---|---|
| Author | Feng, Chao Huang, Dazhang Deng, Haixiao Chen, Jianhui Xiang, Dao Liu, Bo Wang, Dong Zhao, Zhentang |
| Copyright Year | 2016 |
| Abstract | The echo-enabled harmonic generation (EEHG) scheme holds promising prospects for efficiently generating intense coherent radiation at very high harmonics of the initial seed laser. In this paper, we study the feasibility of operating the Shanghai X-ray free-electron laser test facility with a single stage EEHG setup. With a combination of existing numerical codes, start-to-end simulations considering various three-dimensional effects have been carried out to show the possible performance of the EEHG FEL. Simulation results demonstrate that a single stage EEHG can generate high power soft X-ray radiation pulses with narrow bandwidth directly from UV seed lasers. With the help of the harmonic lasing technique or upgraded linac, we also show the possibility of generating coherent soft X-ray radiation in the “water window” with a single stage EEHG.回声谐波产生型(EEHG)自由电子激光(FEL)非常适合用于产生高亮度、相干性好的超高次谐波辐射。本文系统地研究了在上海软X射线自由电子激光试验装置(SXFEL)上采用单级EEHG产生窄带宽软X射线辐射的可能性。为全面考虑各种三维效应对FEL输出效果的影响,我们采用SXFEL实际装置参数对单级EEHG进行了从头至尾的模拟研究。模拟结果表明,借助于一个深紫外的种子激光,采用单级EEHG可产生峰值功率为百兆瓦量级的窄带宽FEL辐射。若采用波荡器谐波辐射技术,则有可能在SXFEL上直接产生相干性非常好的“水窗”波段的FEL辐射。 |
| Starting Page | 1202 |
| Ending Page | 1212 |
| Page Count | 11 |
| File Format | |
| ISSN | 20959273 |
| Journal | Chinese Science Bulletin |
| Volume Number | 61 |
| Issue Number | 15 |
| e-ISSN | 20959281 |
| Language | Chinese |
| Publisher | Science China Press |
| Publisher Date | 2016-07-06 |
| Publisher Place | Beijing |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | X-ray free-electron lasers EEHG Coherent soft X-ray Harmonic lasing Water window Science Life Sciences Physics Chemistry/Food Science Earth Sciences Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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