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Title: High-resolution Laue-type DuMond curved crystal spectrometer

Abstract

We report on a high-resolution transmission-type curved crystal spectrometer based on the modified DuMond slit geometry. The spectrometer was developed at the University of Fribourg for the study of photoinduced X-ray spectra. K and L X-ray transitions with energies above about 10 keV can be measured with an instrumental resolution comparable to their natural linewidths. Construction details and operational characteristics of the spectrometer are presented. The variation of the energy resolution as a function of the focal distance and diffraction order is discussed. The high sensitivity of the spectrometer is demonstrated via the 2s-1s dipole-forbidden X-ray transition of Gd which could be observed despite its extremely low intensity. The precision of the instrument is illustrated by comparing the sum of the energies of the Au K–L{sub 2} and L{sub 2}–M{sub 3} cascading transitions with the energy of the crossover K–M{sub 3} transition as well as by considering the energy differences of the Gd Kα{sub 1} X-ray line measured at five different diffraction orders. Finally, to demonstrate the versatility of the spectrometer, it is shown that the latter can also be used for in-house extended X-ray absorption fine structure measurements.

Authors:
; ; ;  [1];  [2]
  1. Department of Physics, University of Fribourg, CH-1700 Fribourg (Switzerland)
  2. Paul Scherrer Institute, CH-5232 Villigen PSI (Switzerland)
Publication Date:
OSTI Identifier:
22220337
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 84; Journal Issue: 9; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 36 MATERIALS SCIENCE; ABSORPTION; ABSORPTION SPECTROSCOPY; DIFFRACTION; DIPOLES; ENERGY RESOLUTION; FINE STRUCTURE; GADOLINIUM; KEV RANGE 10-100; LINE WIDTHS; X RADIATION; X-RAY SPECTRA; X-RAY SPECTROMETERS; X-RAY SPECTROSCOPY

Citation Formats

Szlachetko, M., Berset, M., Dousse, J. -Cl., Hoszowska, J., Szlachetko, J., and Institute of Physics, Jan Kochanowski University, 25-406 Kielce. High-resolution Laue-type DuMond curved crystal spectrometer. United States: N. p., 2013. Web. doi:10.1063/1.4821621.
Szlachetko, M., Berset, M., Dousse, J. -Cl., Hoszowska, J., Szlachetko, J., & Institute of Physics, Jan Kochanowski University, 25-406 Kielce. High-resolution Laue-type DuMond curved crystal spectrometer. United States. https://doi.org/10.1063/1.4821621
Szlachetko, M., Berset, M., Dousse, J. -Cl., Hoszowska, J., Szlachetko, J., and Institute of Physics, Jan Kochanowski University, 25-406 Kielce. 2013. "High-resolution Laue-type DuMond curved crystal spectrometer". United States. https://doi.org/10.1063/1.4821621.
@article{osti_22220337,
title = {High-resolution Laue-type DuMond curved crystal spectrometer},
author = {Szlachetko, M. and Berset, M. and Dousse, J. -Cl. and Hoszowska, J. and Szlachetko, J. and Institute of Physics, Jan Kochanowski University, 25-406 Kielce},
abstractNote = {We report on a high-resolution transmission-type curved crystal spectrometer based on the modified DuMond slit geometry. The spectrometer was developed at the University of Fribourg for the study of photoinduced X-ray spectra. K and L X-ray transitions with energies above about 10 keV can be measured with an instrumental resolution comparable to their natural linewidths. Construction details and operational characteristics of the spectrometer are presented. The variation of the energy resolution as a function of the focal distance and diffraction order is discussed. The high sensitivity of the spectrometer is demonstrated via the 2s-1s dipole-forbidden X-ray transition of Gd which could be observed despite its extremely low intensity. The precision of the instrument is illustrated by comparing the sum of the energies of the Au K–L{sub 2} and L{sub 2}–M{sub 3} cascading transitions with the energy of the crossover K–M{sub 3} transition as well as by considering the energy differences of the Gd Kα{sub 1} X-ray line measured at five different diffraction orders. Finally, to demonstrate the versatility of the spectrometer, it is shown that the latter can also be used for in-house extended X-ray absorption fine structure measurements.},
doi = {10.1063/1.4821621},
url = {https://www.osti.gov/biblio/22220337}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 9,
volume = 84,
place = {United States},
year = {Sun Sep 15 00:00:00 EDT 2013},
month = {Sun Sep 15 00:00:00 EDT 2013}
}