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Feasibility of Laboratory-Based EXAFS Spectroscopy with Cryogenic Detectors.

Authors :
George, Simon J.
Carpenter, Matthew H.
Friedrich, Stephan
Cantor, Robin
Source :
Journal of Low Temperature Physics. Sep2020, Vol. 200 Issue 5/6, p479-484. 6p.
Publication Year :
2020

Abstract

Extended X-ray absorption fine structure (EXAFS) spectroscopy is a powerful technique that gives element-specific information about the structure of molecules. The development of a laboratory EXAFS spectrometer capable of measuring transmission spectra would be a significant advance as the technique is currently only available at synchrotron radiation lightsources. Here, we explore the potential of cryogenic detectors as the energy-resolving component of a laboratory transmission EXAFS instrument. We examine the energy resolution, count rate, and detector stability needed for good EXAFS spectra and compare these to the properties of cryogenic detectors and conventional X-ray optics. We find that superconducting tunnel junction detectors are well-suited for this application. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00222291
Volume :
200
Issue :
5/6
Database :
Academic Search Index
Journal :
Journal of Low Temperature Physics
Publication Type :
Academic Journal
Accession number :
145653573
Full Text :
https://doi.org/10.1007/s10909-020-02474-7