Cryogenic high-resolution X-ray spectrometers for SR-XRF and microanalysis

Matthias Frank, C. A. Mears, S. E. Labov, L. J. Hiller, J. B. Le Grand, M. A. Lindeman, H. Netel, D. Chow, A. T. Barfknecht

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Experimental results are presented obtained with a cryogenically cooled high-resolution X-ray spectrometer based on a 141 × 141 μm Nb-Al-Al2O3-Al-Nb superconducting tunnel junction (STJ) detector in an SR-XRF demonstration experiment. STJ detectors can operate at count rates approaching those of semiconductor detectors while still providing a significantly better energy resolution for soft X-rays. By measuring fluorescence X-rays from samples containing transition metals and low-Z elements, an FWHM energy resolution of 6-15 eV for X-rays in the energy range 180-1100 eV has been obtained. The results show that, in the near future, STJ detectors may prove very useful in XRF and microanalysis applications.

Original languageEnglish (US)
Pages (from-to)515-517
Number of pages3
JournalJournal of Synchrotron Radiation
Volume5
Issue number3
DOIs
StatePublished - May 1 1998
Externally publishedYes

Keywords

  • Cryogenic detectors
  • Low-temperature detectors
  • Microcalorimeters
  • X-ray fluorescence
  • X-ray spectroscopy

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Instrumentation

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    Frank, M., Mears, C. A., Labov, S. E., Hiller, L. J., Le Grand, J. B., Lindeman, M. A., Netel, H., Chow, D., & Barfknecht, A. T. (1998). Cryogenic high-resolution X-ray spectrometers for SR-XRF and microanalysis. Journal of Synchrotron Radiation, 5(3), 515-517. https://doi.org/10.1107/S0909049597014465