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Features and futures of X-ray free-electron lasers

Nan-Shun Huang, H. Deng, Bo Liu, Dong Wang, Zhen-Tang Zhao

The Innovation, 2021

178 citations

Abstract

Linear accelerator-based free-electron lasers (FELs) are the leading source of fully coherent X-rays with ultra-high peak powers and ultra-short pulse lengths. Current X-ray FEL facilities have proved their worth as useful tools for diverse scientific applications. In this paper, we present an overview of the features and future prospects of X-ray FELs, including the working principles and properties of X-ray FELs, the operational status of different FEL facilities worldwide, the applications supported by such facilities, and the current developments and outlook for X-ray FEL-based research.

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