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使用金刚石微晶的单脉冲光谱仪用于X射线自由电子激光脉冲。

Single-shot spectrometer using diamond microcrystals for X-ray free-electron laser pulses.

作者信息

Inoue Ichiro, Iwai Eito, Hara Toru, Inubushi Yuichi, Tono Kensuke, Yabashi Makina

机构信息

RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan.

出版信息

J Synchrotron Radiat. 2022 May 1;29(Pt 3):862-865. doi: 10.1107/S1600577522001205. Epub 2022 Mar 21.

DOI:10.1107/S1600577522001205
PMID:35511018
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9070727/
Abstract

A simple spectrometer using diffraction from diamond microcrystals has been developed to diagnose single-shot spectra of X-ray free-electron laser (XFEL) pulses. The large grain size and uniform lattice constant of the adopted crystals enable characterizing the XFEL spectrum at a resolution of a few eV from the peak shape of the powder diffraction profile. This single-shot spectrometer has been installed at beamline 3 of SACLA and is used for daily machine tuning.

摘要

一种利用金刚石微晶衍射的简单光谱仪已被开发出来，用于诊断X射线自由电子激光（XFEL）脉冲的单次光谱。所采用晶体的大晶粒尺寸和均匀晶格常数使得能够根据粉末衍射图谱的峰形以几电子伏特的分辨率表征XFEL光谱。这种单次光谱仪已安装在SACLA的3号光束线上，并用于日常的机器调谐。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4103/9070727/5d6e57276324/s-29-00862-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4103/9070727/2e8c6b9834fe/s-29-00862-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4103/9070727/5d6e57276324/s-29-00862-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4103/9070727/2e8c6b9834fe/s-29-00862-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4103/9070727/5d6e57276324/s-29-00862-fig2.jpg

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本文引用的文献

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X-ray photon diagnostics at the European XFEL.欧洲 X 射线自由电子激光的 X 射线光子诊断。
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3
Nanofocusing of X-ray free-electron laser using wavefront-corrected multilayer focusing mirrors.
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Sci Rep. 2018 Nov 28;8(1):17440. doi: 10.1038/s41598-018-35611-0.
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A beam branching method for timing and spectral characterization of hard X-ray free-electron lasers.一种用于硬 X 射线自由电子激光的时间和光谱特性分析的分束方法。
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The LCLS variable-energy hard X-ray single-shot spectrometer.直线加速器相干光源可变能量硬X射线单次光谱仪。
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