Energy-Dispersive X-ray Absorption Spectroscopy with an Inverse Compton Source

Huang J, Guenther B, Achterhold K, Cui YT, Gleich B, Dierolf M, Pfeiffer F (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Scientific Reports Nature Publishing Group: Open Access Journals - Option B

Book Volume: 10

Article Number: 8772

Journal Issue: 1

DOI: 10.1038/s41598-020-65225-4

Abstract

Novel compact x-ray sources based on inverse Compton scattering can generate brilliant hard x-rays in a laboratory setting. Their collimated intense beams with tunable well-defined x-ray energies make them well suited for x-ray spectroscopy techniques, which are typically carried out at large facilities. Here, we demonstrate a first x-ray absorption spectroscopy proof-of-principle experiment using an inverse Compton x-ray source with a flux of >1010 photons/s in <5% bandwidth. We measured x-ray absorption near edge structure and extended x-ray absorption fine structure at the silver K-edge (~25.5 keV) for a series of silver samples. We propose an energy-dispersive geometry specifically adapted to the x-ray beam properties of inverse Compton x-ray sources together with a fast concentration correction method that corrects sample inhomogeneities very effectively. The combination of our setup with the inverse Compton source generates x-ray absorption spectra with high energy resolution in exposure times down to one minute. Our results unravel the great benefit of inverse Compton scattering sources for x-ray absorption techniques in a laboratory environment, especially in the hard x-ray regime, which allows to probe absorption edges of high Z materials.

Involved external institutions

Technische Universität München (TUM) DE Germany (DE) Japan Synchrotron Radiation Research Institute (JASRI) JP Japan (JP)

How to cite

APA:

Huang, J., Guenther, B., Achterhold, K., Cui, Y.-T., Gleich, B., Dierolf, M., & Pfeiffer, F. (2020). Energy-Dispersive X-ray Absorption Spectroscopy with an Inverse Compton Source. Scientific Reports, 10(1). https://doi.org/10.1038/s41598-020-65225-4

MLA:

Huang, Juanjuan, et al. "Energy-Dispersive X-ray Absorption Spectroscopy with an Inverse Compton Source." Scientific Reports 10.1 (2020).

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