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

Rehanek, Jens; Milne, Christopher J.; Szlachetko, Jakub; Czapla–Masztafiak, Joanna; Schneider, J.R.; Huthwelker, Thomas; Borca, Camelia N.; Wetter, Reto; Patthey, L.; Juranić, Pavle

doi:10.1107/s1600577517012796

Cited by 8 publications

(5 citation statements)

References 26 publications

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“…Since the initial original publications by Johann [110], Johansson [111] and von Hamos [112], there have been many publications [5,2,82,94,[100][101][102][113][114][115][116][117][118][119][120][121][122][123][124] discussing and illustrating variations and improvements, though some articles describe setups at large scale facilities such as a free electron laser or synchrotron. This list, however, is just meant to be a starting point for the interested reader with no claim to be complete or exhaustive.…”

Section: Tablementioning

confidence: 99%

Modern X-ray spectroscopy: XAS and XES in the laboratory

Zimmermann

Peredkov

Abdala

et al. 2020

Coordination Chemistry Reviews

161

140

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X-ray spectroscopy is an important tool for scientific analysis. While the earliest demonstration experiments were realised in the laboratory, with the advent of synchrotron light sources most of the experiments shifted to large scale synchrotron facilities. In the recent past there is an increased interest to perform X-ray experiments also with in-house laboratory sources, to simplify access to X-ray absorption and X-ray emission spectroscopy, in particular for routine measurements. Here we summarise the recent developments and comment on the most representative example experiments in the field of in-house laboratory X-ray spectroscopy. We first give an introduction and some historic background on X-ray spectroscopy. This is followed by an overview of the detection techniques used for X-ray absorption and X-ray emission measurements. A short paragraph also puts related high energy resolution and resonant techniques into context, though they are not yet feasible in the laboratory. At the end of this section the opportunities using wavelength dispersive X-ray spectroscopy in the laboratory are discussed. Then we summarise the relevant details of the recent experimental laboratory setups split into two separate sections, one for the recent von Hamos setups, and one for the recent Johann/Johansson type setups. Following that, focussing on chemistry and catalysis, we then summarise some of the notable X-ray absorption and X-ray emission experiments and the results accomplished with in-house setups. In a third part we then discuss some applications of laboratory X-ray spectroscopy with a particular focus on chemistry and catalysis.

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Section: Tablementioning

confidence: 99%

Modern X-ray spectroscopy: XAS and XES in the laboratory

Zimmermann

Peredkov

Abdala

et al. 2020

Coordination Chemistry Reviews

161

140

View full text Add to dashboard Cite

show abstract

“…All of this imposes additional requirements on the optical design of the beamline, the vacuum system and the sample environment. Access to XES at synchrotron facilities in the tender X-ray region can be very limited and highly competitive (Mori et al, 2010;Rehanek et al, 2018;Butorin et al, 2018;Abraham et al, 2019;Rovezzi et al, 2020;Qureshi et al, 2021). Moreover, the availability of non-synchrotron based instruments for such experiments is also quite limited (Petric & Kavc ˇic ˇ, 2016;Malzer et al, 2018;Holden et al, 2017Holden et al, , 2018Abramson et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

PINK: a tender X-ray beamline for X-ray emission spectroscopy

Peredkov,

Pereira,

Grötzsch

et al. 2024

J Synchrotron Rad

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A high-flux beamline optimized for non-resonant X-ray emission spectroscopy (XES) in the tender X-ray energy range has been constructed at the BESSY II synchrotron source. The beamline utilizes a cryogenically cooled undulator that provides X-rays over the energy range 2.1 keV to 9.5 keV. This energy range provides access to XES [and in the future X-ray absorption spectroscopy (XAS)] studies of transition metals ranging from Ti to Cu (Kα, Kβ lines) and Zr to Ag (Lα, Lβ), as well as light elements including P, S, Cl, K and Ca (Kα, Kβ). The beamline can be operated in two modes. In PINK mode, a multilayer monochromator (E/ΔE ≃ 30–80) provides a high photon flux (1014 photons s−1 at 6 keV and 300 mA ring current), allowing non-resonant XES measurements of dilute substances. This mode is currently available for general user operation. X-ray absorption near-edge structure and resonant XAS techniques will be available after the second stage of the PINK commissioning, when a high monochromatic mode (E/ΔE ≃ 10000–40000) will be facilitated by a double-crystal monochromator. At present, the beamline incorporates two von Hamos spectrometers, enabling time-resolved XES experiments with time scales down to 0.1 s and the possibility of two-color XES experiments. This paper describes the optical scheme of the PINK beamline and the endstation. The design of the two von Hamos dispersive spectrometers and sample environment are discussed here in detail. To illustrate, XES spectra of phosphorus complexes, KCl, TiO2 and Co3O4 measured using the PINK setup are presented.

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“…Thus, it is necessary to measure the spectra before and after the sample on a shot-to-shot basis. While single-shot spectrometers have been developed [12][13][14][15][16], the simultaneous application of two such spectrometers for these measurements is challenging, time consuming, and expensive. Furthermore, signal-to-noise (SNR) requirements impose a limitation on the minimum number of photons that must be detected for the reconstruction of the spectra, which leads to stringent requirements for the input flux and limits the dynamical range of absorption magnitudes that can be measured.…”

Section: Introductionmentioning

confidence: 99%

High-spectral-resolution absorption measurements with free-electron lasers using ghost spectroscopy

et al. 2023

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We demonstrate a simple and robust high-resolution ghost spectroscopy approach for x-ray and extreme ultraviolet transient absorption spectroscopy at free-electron laser sources. To retrieve the sample response, our approach requires only an online spectrometer before the sample and a downstream bucket detector. We validate the method by measuring the absorption spectrum of silicon, silicon carbide, and silicon nitride membranes in the vicinity of the silicon L 2,3 edge and by comparing the results with standard techniques for absorption measurements. Moreover, we show that ghost spectroscopy allows the high-resolution reconstruction of the sample spectral response to optical pumps using a coarse energy scan with self-amplified spontaneous emission radiation.

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

Cited by 8 publications

References 26 publications

Modern X-ray spectroscopy: XAS and XES in the laboratory

Modern X-ray spectroscopy: XAS and XES in the laboratory

PINK: a tender X-ray beamline for X-ray emission spectroscopy

High-spectral-resolution absorption measurements with free-electron lasers using ghost spectroscopy

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