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A new experimental setup for time- and laterally-resolved X-ray absorption fine structure spectroscopy in a ‘single shot’

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Abstract

In this work, a new setup for dispersive XAFS measurements is presented. This reproducible and scanning-free setup yields both time- and laterally-resolved XAFS experiments in a ‘single-shot’. It allows a straightforward adjustment for probing different elements covering many relevant applications in materials science. An incoming energetic broadband beam is diffracted by a Si (111) crystal after passing through the sample and collected by an area sensitive detector. Depending on the energy range of the incoming beam, XANES and/or EXAFS spectra can be recorded with a time resolution down to 1 s. The feasibility of this setup was demonstrated at the BAMline at BESSY II (Berlin, Germany) with reference Fe and Cu foils and the results are hereby presented and discussed. Additionally, an application where time resolution on the second scale is required is briefly evaluated. The presented example concerns studying early stages of zinc(II)2-methylimidazolate (ZIF-8) crystallization. This is particularly important for biomedical applications.

Graphical abstract: A new experimental setup for time- and laterally-resolved X-ray absorption fine structure spectroscopy in a ‘single shot’

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Publication details

The article was received on 25 Sep 2018, accepted on 02 Nov 2018 and first published on 13 Nov 2018


Article type: Technical Note
DOI: 10.1039/C8JA00313K
Citation: J. Anal. At. Spectrom., 2019, Advance Article
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    A new experimental setup for time- and laterally-resolved X-ray absorption fine structure spectroscopy in a ‘single shot’

    A. Kulow, S. Witte, S. Beyer, A. Guilherme Buzanich, M. Radtke, U. Reinholz, H. Riesemeier and C. Streli, J. Anal. At. Spectrom., 2019, Advance Article , DOI: 10.1039/C8JA00313K

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