The Linac Coherent Light Source: Recent Developments and Future Plans
The Linac Coherent Light Source: Recent Developments and Future Plans
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DOI：
10.3390/app7080850
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发表时间：
2017-08
期刊：
影响因子：
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通讯作者：
R. Schoenlein;S. Boutet;M. Minitti;A. Dunne
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文献类型：
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作者：
R. Schoenlein;S. Boutet;M. Minitti;A. Dunne
X射线自由电子激光器（XFEL）的发展开启了X射线科学的新时代，它提供了峰值亮度比以前的X射线源高出约10亿倍的超快相干X射线脉冲。SLAC国家加速器实验室的直线加速器相干光源（LCLS）设施是世界上第一个硬X射线自由电子激光，已经在广泛的科学领域展示了巨大的科学影响。在这里，LCLS最近的一些代表性亮点在原子，分子和光学科学领域;化学;凝聚态物理学;极端条件下的物质;和生物学。本文还概述了近期升级（LCLS-II）和激励科学的机会，超快X射线在0.25-5千电子伏的范围内，重复率高达1 MHz。未来的计划是在高重复率（LCLS-II-HE）下将X射线能量范围扩展到13 keV（<1 A）以上，这是由原子尺度上引人注目的结构动力学新科学所激发的。
The development of X-ray free-electron lasers (XFELs) has launched a new era in X-ray science by providing ultrafast coherent X-ray pulses with a peak brightness that is approximately one billion times higher than previous X-ray sources. The Linac Coherent Light Source (LCLS) facility at the SLAC National Accelerator Laboratory, the world’s first hard X-ray FEL, has already demonstrated a tremendous scientific impact across broad areas of science. Here, a few of the more recent representative highlights from LCLS are presented in the areas of atomic, molecular, and optical science; chemistry; condensed matter physics; matter in extreme conditions; and biology. This paper also outlines the near term upgrade (LCLS-II) and motivating science opportunities for ultrafast X-rays in the 0.25–5 keV range at repetition rates up to 1 MHz. Future plans to extend the X-ray energy reach to beyond 13 keV (<1 A) at high repetition rate (LCLS-II-HE) are envisioned, motivated by compelling new science of structural dynamics at the atomic scale.