Refractive Guide Switching a Regenerative Amplifier Free-Electron Laser for High Peak and Average Power Hard X Rays

被引：24

作者：

Marcus, Gabriel ^{[1
]}

Halavanau, Alex ^{[1
]}

Huang, Zhirong ^{[1
]}

Krzywinski, Jacek ^{[1
]}

MacArthur, James ^{[1
]}

Margraf, Rachel ^{[1
]}

Raubenheimer, Tor ^{[1
]}

Zhu, Diling ^{[1
]}

机构：

[1] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 125卷 / 25期

关键词：

HIGH-RESOLUTION; GAIN; REFLECTIVITY; OPERATION; OPTICS; MODES;

D O I：

10.1103/PhysRevLett.125.254801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present an x-ray regenerative amplifier free-electron laser design capable of producing fully coherent hard x-ray pulses across a broad tuning range at a high steady state repetition rate. The scheme leverages a strong undulator taper and an apertured diamond output-coupling cavity crystal to produce both high peak and average spectral brightness radiation that is 2 to 3 orders of magnitude greater than conventional single-pass self-amplified spontaneous emission free-electron laser amplifiers. Refractive guiding in the postsaturation regime is found to play a key role in passively controlling the stored cavity power. The scheme is explored both analytically and numerically in the context of the Linac Coherent Light Source II High Energy upgrade.

引用

页数：6