A compact and versatile tender X-ray single-shot spectrometer for online XFEL diagnostics

Author:

Rehanek JensORCID,Milne Christopher J.,Szlachetko Jakub,Czapla-Masztafiak Joanna,Schneider Jörg,Huthwelker Thomas,Borca Camelia N.,Wetter Reto,Patthey Luc,Juranić Pavle

Abstract

One of the remaining challenges for accurate photon diagnostics at X-ray free-electron lasers (FELs) is the shot-to-shot, non-destructive, high-resolution characterization of the FEL pulse spectrum at photon energies between 2 keV and 4 keV, the so-called tender X-ray range. Here, a spectrometer setup is reported, based on the von Hamos geometry and using elastic scattering as a fingerprint of the FEL-generated spectrum. It is capable of pulse-to-pulse measurement of the spectrum with an energy resolution (ΔE/E) of 10−4, within a bandwidth of 2%. The Tender X-ray Single-Shot Spectrometer (TXS) will grant to experimental scientists the freedom to measure the spectrum in a single-shot measurement, keeping the transmitted beam undisturbed. It will enable single-shot reconstructions for easier and faster data analysis.

Funder

National Science Centre, Poland (NCN)

Publisher

International Union of Crystallography (IUCr)

Subject

Instrumentation,Nuclear and High Energy Physics,Radiation

Cited by 8 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. PINK: a tender X-ray beamline for X-ray emission spectroscopy;Journal of Synchrotron Radiation;2024-04-25

2. The CompactLight Design Study;The European Physical Journal Special Topics;2024-03-22

3. A versatile wide energy range spectrometer for soft X-ray FELs;Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment;2024-01

4. High-spectral-resolution absorption measurements with free-electron lasers using ghost spectroscopy;Physical Review A;2023-05-05

5. Development of an experimental apparatus to observe ultrafast phenomena by tender X-ray absorption spectroscopy at PAL-XFEL;Journal of Synchrotron Radiation;2022-01-01

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