The MING proposal at SHINE: megahertz cavity enhanced X-ray generation
Nanshun Huang, Zi-Peng Liu, Bangjie Deng, Zihan Zhu, Shaohua Li, Tao Liu, Zheng Qi, Jiawei Yan, Wei Zhang, Sheng-Wang Xiang, Yangyang Lei, Ya Zhu, Yongzhou He, Qibing Yuan, Fei Gao, Rong-Bing Deng, Sen Sun, Zhi-Di Lei, Zhiqiang Jiang, Meng‐Qi Duan, Yuan Zhuan, Xue-Fang Huang, Pengcheng Dong, Zhongliang Li, Shangyu Si, Lian Xue, Si Chen, Yongfang Liu, Yajun Tong, Haixiao Deng, Zhentang Zhao
Abstract
Abstract The cavity-based X-ray free-electron laser (XFEL) has promise in producing fully coherent pulses with a bandwidth of a few meV and very stable intensity, whereas the currently existing self-amplified spontaneous emission (SASE) XFEL is capable of generating ultra-short pulses with chaotic spectra. In general, a cavity-based XFEL can provide a spectral brightness three orders of magnitude higher than that of the SASE mode, thereby opening a new door for cutting-edge scientific research. With the development of superconducting MHz repetition-rate XFEL facilities such as FLASH, European-XFEL, LCLS-II, and SHINE, practical cavity-based XFEL operations are becoming increasingly achievable. In this study, megahertz cavity enhanced X-ray generation (MING) is proposed based on China’s first hard XFEL facility - SHINE, which we refer to as MING@SHINE.