Feasibility of Laboratory-Based EXAFS Spectroscopy with Cryogenic Detectors

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...

Full description

Saved in:
Bibliographic Details
Published in:Journal of low temperature physics 2020-09, Vol.200 (5-6), p.479-484
Main Authors: George, Simon J., Carpenter, Matthew H., Friedrich, Stephan, Cantor, Robin
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Condensed Matter Physics
Detectors
Energy resolution
Fine structure
Geometrical optics
Laboratories
Low temperature physics
Magnetic Materials
Magnetism
Molecular structure
Physics
Physics and Astronomy
Sensors
Spectroscopy
Spectrum analysis
Synchrotron radiation
Synchrotrons
Tunnel junctions
X ray absorption
X ray optics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0022-2291
1573-7357
DOI:10.1007/s10909-020-02474-7