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Main Title: A laboratory spectrometer for high throughput X-ray emission spectroscopy in catalysis research
Author(s): Malzer, Wolfgang
Grötzsch, Daniel
Gnewkow, Richard
Schlesiger, Christopher
Kowalewski, Fabian
Van Kuiken, Benjamin
DeBeer, Serena
Kanngießer, Birgit
Type: Article
Language Code: en
Abstract: We have built a laboratory spectrometer for X-ray emission spectroscopy. The instrument is employed in catalysis research. The key component is a von Hamos full cylinder optic with Highly Annealed Pyrolytic Graphite (HAPG) as a dispersive element. With this very efficient optic, the spectrometer subtends an effective solid angle of detection of around 1 msr, allowing for the analysis of dilute samples. The resolving power of the spectrometer is approximately E/ΔE = 4000, with an energy range of ∼2.3 keV–10 keV. The instrument and its characteristics are described herein. Further, a comparison with a prototype spectrometer, based on the same principle, shows the substantial improvement in the spectral resolution and energy range for the present setup. The paper concludes with a discussion of sample handling. A compilation of HAPG fundamentals and related publications are given in a brief Appendix.
Issue Date: 15-Nov-2018
Date Available: 12-Mar-2020
DDC Class: 530 Physik
Subject(s): X-ray emission spectroscopy
highly annealed pyrolytic graphite
Sponsor/Funder: EC/FP7/615414/EU/Spectroscopic Studies of N2 Reduction: From Biological to Heterogeneous Catalysis/N2RED
Journal Title: Review of Scientific Instruments
Publisher: American Institute of Physics (AIP)
Publisher Place: Melville, NY
Volume: 89
Issue: 11
Article Number: 113111
Publisher DOI: 10.1063/1.5035171
EISSN: 1089-7623
ISSN: 0034-6748
Appears in Collections:FG Analytische Röntgenphysik » Publications

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