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Hyperspectral X-ray Imaging with TES Detectors for Nanoscale Chemical Speciation Mapping.

Authors :
Carpenter, M. H.
Croce, M. P.
Baker, Z. K.
Batista, E. R.
Caffrey, M. P.
Fontes, C. J.
Koehler, K. E.
Kossmann, S. E.
McIntosh, K. G.
Rabin, M. W.
Renck, B. W.
Wagner, G. L.
Wilkerson, M. P.
Yang, P.
Yoho, M. D.
Ullom, J. N.
Bennett, D. A.
O'Neil, G. C.
Reintsema, C. D.
Schmidt, D. R.
Source :
Journal of Low Temperature Physics. Sep2020, Vol. 200 Issue 5/6, p437-444. 8p.
Publication Year :
2020

Abstract

We are developing an imaging capability ("Hyperspectral X-ray Imaging") for mapping chemical information (molecular formula, phase, oxidation state, hydration) that is based on ultra-high-resolution X-ray emission spectroscopy with large transition-edge sensor microcalorimeter arrays in the scanning electron microscope. By combining microcalorimeter arrays with hundreds of pixels, high-bandwidth microwave frequency-division multiplexing, and fast digital electronics for near real-time data processing, our goal is to enable measurements using laboratory-scale instrumentation rather than synchrotron beamlines. Our application focus here is on mapping the chemical form of uranium compounds on the nanoscale. We will present our approach to developing the Hyperspectral X-ray Imaging capability, progress toward a 128-pixel microwave multiplexed X-ray fluorescence instrument at LANL, and the path to high-throughput nanoscale chemical mapping. [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 :
145653563
Full Text :
https://doi.org/10.1007/s10909-020-02456-9