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

Journal Article · · Journal of Low Temperature Physics
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  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. National Inst. of Standards and Technology (NIST), Boulder, CO (United States)
  3. Univ. of Colorado, Boulder, CO (United States)
  4. STAR Cryoelectronics, Santa Fe, NM (United States)
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. Furthermore, 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.
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1726170
Report Number(s):
LA-UR--19-27148
Journal Information:
Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 5-6 Vol. 200; ISSN 0022-2291
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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