A DuMond-type crystal spectrometer for synchrotron-based X-ray emission studies in the energy range of 15-26 keV

• Published in: Review of scientific instruments Vol. 90; no. 6; p. 063106
• Main Authors: Jagodziński, P, Szlachetko, J, Dousse, J-Cl, Hoszowska, J, Szlachetko, M, Vogelsang, U, Banaś, D, Pakendorf, T, Meents, A, van Bokhoven, J A, Kubala-Kukuś, A, Pajek, M, Nachtegaal, M
• Format: Journal Article
• Language: English
• Published: United States 01.06.2019
• ISSN: 1089-7623
• DOI: 10.1063/1.5087948

The design and performance of a high-resolution transmission-type X-ray spectrometer for use in the 15-26 keV energy range at synchrotron light sources is reported. Monte Carlo X-ray-tracing simulations were performed to optimize the performance of the transmission-type spectrometer, based on the DuMond geometry, for use at the Super X-ray absorption beamline of the Swiss Light Source at the Paul Scherrer Institute. This spectrometer provides an instrumental energy resolution of 3.5 eV for X-ray emission lines around 16 keV and 12.5 eV for emission lines at 26 keV, which is comparable to the natural linewidths of the K and L X-ray transitions in the covered energy range. First experimental data are presented and compared with results of the Monte Carlo X-ray simulations.