Effect of Optics Contamination on X-ray Free-Electron Laser Beam Quality

被引：6

作者：

Tong Yajun ^{[1
]}

Liu Fang ^{[1
]}

Fan Jiadong ^{[1
]}

Jin Limin ^{[2
]}

Dong Xiaohao ^{[2
]}

Yu Xiaojiang ^{[3
]}

Jiang Huaidong ^{[1
]}

Liu Zhi ^{[1
]}

机构：

[1] ShanghaiTech Univ, Ctr Transformat Sci, Shanghai 201210, Peoples R China

[2] Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China

[3] Natl Univ Singapore, Singapore Synchrotron Light Source, Singapore 117603, Singapore

来源：

ACTA OPTICA SINICA | 2022年 / 42卷 / 11期

关键词：

X-ray optics; X-ray free-electron laser; beamline; coherent beam; carbon contamination; particle contamination; FUSED-SILICA; OXYGEN; GRATINGS; DAMAGE;

D O I：

10.3788/AOS202242.1134006

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optics contamination has a great impact on X-ray transportation, especially in high-brightness, high coherence X-ray free-electron lasers. However, there are very few related studies on the optics contamination of Xray free-electron lasers. First, the characteristics of the X-ray free-electron laser are given. Then, the effects, control, and cleaning schemes of carbon contamination in synchrotron radiation are summarized. Moreover, the special effects of carbon contamination on the beam quality in X-ray free-electron laser beamlines are analyzed. Finally, the damage, melting, and blocking that particle contamination may occur on X-ray free-electron laser mirrors are analyzed, and the effects of the three conditions on the beam quality are given.

引用

页数：13

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