Superconducting tunnel junction array development for high-resolution energy-dispersive X-ray spectroscopy

S. Friedrich, C. A. Mears, B. Nideröst, L. J. Miller, Matthias Frank, S. E. Labov, A. T. Barfknecht, S. P. Cramer

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Cryogenic energy-dispersive X-ray detectors are being developed because of their superior energy resolution (10 eV FWHM for keV X-rays) compared to that achieved in semiconductor energy-dispersive spectrometry (EDS) systems. So far, their range of application is limited because of their comparably small size and low count rate. We present data on the development of superconducting tunnel junction (STJ) detector arrays to address both of these issues. A single STJ detector has a resolution of around 10 eV below 1 keV and can be operated at count rates of the order 10,000 counts/sec. We show that the simultaneous operation of several STJ detectors does not dimish their energy resolution significantly, and it increases the detector area and the maximum count rate by a factor given by the total number of independent channels.

Original languageEnglish (US)
Pages (from-to)616-621
Number of pages6
JournalMicroscopy and Microanalysis
Volume4
Issue number6
DOIs
StatePublished - Jan 1 1998
Externally publishedYes

Fingerprint

Tunnel junctions
tunnel junctions
Detectors
high resolution
detectors
spectroscopy
x rays
energy
X rays
Full width at half maximum
Cryogenics
Spectrometry
cryogenics
X-Ray Emission Spectrometry
Semiconductor materials

Keywords

  • Cryogenic X-ray detectors
  • Detector arrays
  • Superconducting tunnel junctions
  • X-ray microcalorimeter

ASJC Scopus subject areas

  • Instrumentation

Cite this

Superconducting tunnel junction array development for high-resolution energy-dispersive X-ray spectroscopy. / Friedrich, S.; Mears, C. A.; Nideröst, B.; Miller, L. J.; Frank, Matthias; Labov, S. E.; Barfknecht, A. T.; Cramer, S. P.

In: Microscopy and Microanalysis, Vol. 4, No. 6, 01.01.1998, p. 616-621.

Research output: Contribution to journalArticle

Friedrich, S, Mears, CA, Nideröst, B, Miller, LJ, Frank, M, Labov, SE, Barfknecht, AT & Cramer, SP 1998, 'Superconducting tunnel junction array development for high-resolution energy-dispersive X-ray spectroscopy', Microscopy and Microanalysis, vol. 4, no. 6, pp. 616-621. https://doi.org/10.1017/S143192769898059X
Friedrich, S. ; Mears, C. A. ; Nideröst, B. ; Miller, L. J. ; Frank, Matthias ; Labov, S. E. ; Barfknecht, A. T. ; Cramer, S. P. / Superconducting tunnel junction array development for high-resolution energy-dispersive X-ray spectroscopy. In: Microscopy and Microanalysis. 1998 ; Vol. 4, No. 6. pp. 616-621.
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AU - Miller, L. J.

AU - Frank, Matthias

AU - Labov, S. E.

AU - Barfknecht, A. T.

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