Design, construction, and offline calibration of ARPolar prototype for SXFEL facility

Liu, Zipeng; Deng, Bangjie; Zhang, Qingmin; Deng, Haixiao; Liu, Bo

doi:10.1007/s41605-022-00329-1

Cited by 1 publication

(2 citation statements)

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“…In particular, the X-ray structure generated by XFELO is complex, and it is difficult to build a common diagnostic system that is effective for some pulse structures. Therefore, various instruments may be employed during XFELO operations, such as a polarimeter [95][96][97][98][99], online spectrometer [100][101][102][103], K-Monochromator [104,105], pulse length measurement device [106][107][108], and other related equipment. In this case, the diagnostic device could consist of invasive and non-invasive devices, where the noninvasive devices are usually gas-based monitors.…”

Section: X-ray Diagnosticsmentioning

confidence: 99%

“…In recent years, instruments based on monitoring the angular distribution of photoelectrons, the so-called "Cookiebox", were successfully deployed for the diagnosis of X-ray FEL polarization at DESY [135]. Inspired by this research, an angular-resolved instrument has been designed for the Shanghai soft X-ray free-electron laser facility (ARPolar), and the ARPolar instrument aims to measure the charge distribution of photoelectrons from the s-shell for polarization diagnosis using 16 detection channels [99], as shown in Fig. 45.…”

Section: X-ray Diagnosticsmentioning

confidence: 99%

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The MING proposal at SHINE: megahertz cavity enhanced X-ray generation

et al. 2023

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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.

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