Demonstration experiment of an energy recovery linac at the infrared-terahertz free electron laser facility

Xu Hanxun; Ma Shuai; Li Wenhao; Wang Weijun; Zhang Xiang; Zhao Yonglong; Xiang Haoran; Xiao Dexing; Liu Yu; Shen Xuming; Luo Xing; Chen Lijun; He TianHui; Yan Longgang; Sang Ziru; Li Peng; Wang Jianxing; Zhang Peng; Ren Bo; Ren Zhongguo; Yang Yufei; Wu Yingyu; Liu Shengzhe; Zhou Kui; Wu Dai; Yang Xingfan; Li Ming

doi:10.11884/HPLPB202638.260170

Xu Hanxun, Ma Shuai, Li Wenhao, et al. Demonstration experiment of an energy recovery linac at the infrared-terahertz free electron laser facilityJ. High Power Laser and Partical Beams. DOI: 10.11884/HPLPB202638.260170

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Demonstration experiment of an energy recovery linac at the infrared-terahertz free electron laser facility

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Abstract

Background Energy recovery linac (ERL) is one of the most promising routs for the development of high-average-power free electron laser (FEL). The infrared-terahertz free electron laser facility is the first ERL facility built in China.
Purpose This facility aims to investigate ERL-related beam physics and realize electron beam recirculation without FEL lasing.
Methods Initial beam commissioning was performed under the following operating conditions: macropulse current 1 mA, macropulse duration 500 μs, macropulse repetition frequency 1 Hz and micropulse repetition frequency 27.08 MHz.
Results The electron beam was successfully recirculated from 20 MeV to 7 MeV with an energy recovery efficiency of 99%.
Conclusions This achievement demonstrated the first realization of electron energy recovery in China.

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Demonstration experiment of an energy recovery linac at the infrared-terahertz free electron laser facility

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