Study on the UV FEL single-shot damage threshold of an Au thin film

Meiyi Wu; Qinming Li; Mingchang Wang; Qinghao Zhu; Jiandong Cai; Zhongmin Xu; Hao Zhou; Long Huang; Bingbing Zhang; Runze Qi; Zhe Zhang; Wenbin Li; Yinpeng Zhong; Weiqing Zhang

doi:10.1107/S1600577524005332

Journal of Synchrotron Radiation (Sep 2024)

Study on the UV FEL single-shot damage threshold of an Au thin film

Meiyi Wu,
Qinming Li,
Mingchang Wang,
Qinghao Zhu,
Jiandong Cai,
Zhongmin Xu,
Hao Zhou,
Long Huang,
Bingbing Zhang,
Runze Qi,
Zhe Zhang,
Wenbin Li,
Yinpeng Zhong,
Weiqing Zhang

Affiliations

Meiyi Wu: Institute of Advanced Science Facilities, Shenzhen 518107, People's Republic of China
Qinming Li: Institute of Advanced Science Facilities, Shenzhen 518107, People's Republic of China
Mingchang Wang: State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
Qinghao Zhu: Institute of Advanced Science Facilities, Shenzhen 518107, People's Republic of China
Jiandong Cai: Institute of Advanced Science Facilities, Shenzhen 518107, People's Republic of China
Zhongmin Xu: Institute of Advanced Science Facilities, Shenzhen 518107, People's Republic of China
Hao Zhou: Institute of Advanced Science Facilities, Shenzhen 518107, People's Republic of China
Long Huang: Institute of Advanced Science Facilities, Shenzhen 518107, People's Republic of China
Bingbing Zhang: Institute of Advanced Science Facilities, Shenzhen 518107, People's Republic of China
Runze Qi: MOE Key Laboratory of Advanced Micro-Structured Materials, Shanghai 200092, People's Republic of China
Zhe Zhang: MOE Key Laboratory of Advanced Micro-Structured Materials, Shanghai 200092, People's Republic of China
Wenbin Li: MOE Key Laboratory of Advanced Micro-Structured Materials, Shanghai 200092, People's Republic of China
Yinpeng Zhong: Institute of Advanced Science Facilities, Shenzhen 518107, People's Republic of China
Weiqing Zhang: State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China

DOI: https://doi.org/10.1107/S1600577524005332
Journal volume & issue: Vol. 31, no. 5
pp. 1010 – 1018

Abstract

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The damage threshold of an Au-coated flat mirror, one of the reflective optics installed on the FEL-2 beamline of the Dalian Coherent Light Source, China, upon far-UV free-electron laser irradiation is evaluated. The surface of the coating is characterized by profilometer and optical microscope. A theoretical approach of the phenomenon is also presented, by application of conventional single-pulse damage threshold calculations, a one-dimensional thermal diffusion model, as well as finite-element analysis with ANSYS.

Published in Journal of Synchrotron Radiation

ISSN: 0909-0495 (Print); 1600-5775 (Online)
Publisher: International Union of Crystallography
Country of publisher: United Kingdom
LCC subjects: Science: Physics: Nuclear and particle physics. Atomic energy. Radioactivity; Science: Chemistry: Crystallography
Website: https://journals.iucr.org/s/

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