Development of a prototype superconducting X-ray spectrometer using a Ta crystal as an absorber

H. Netel, Matthias Frank, S. E. Labov, G. H. Campbell, C. A. Mears, E. Brunet, L. J. Hiller, M. A. Lindeman

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Superconducting tunnel junctions can be used as high resolution X-ray and γ-ray spectrometers. Until recently, most results were from detectors that consisted of niobium and aluminium thin films deposited on insulating substrates. Typically Nb films with thicknesses of several hundred nanometers are used as absorbers. These thin-film devices inherently suffer from poor quantum efficiency. To increase this efficiency a foil or a single crystal can be used as the superconducting absorber. We are working on using ultra-pure, high-Z, superconducting crystals as the X-ray and γ-ray absorbers. We are developing a prototype detector with a 10 μm-thick Ta crystal as an absorber, which will have a quantum efficiency of greater than 99% at 6 keV. In this paper we present several of the design and fabrication issues involved in assembling the prototype superconducting crystal X-ray spectrometer.

Original languageEnglish (US)
Pages (from-to)47-49
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume370
Issue number1
DOIs
StatePublished - Feb 11 1996
Externally publishedYes

Fingerprint

X ray spectrometers
absorbers
prototypes
spectrometers
Quantum efficiency
Crystals
Thin film devices
crystals
Detectors
quantum efficiency
X rays
rays
x rays
Tunnel junctions
Niobium
Metal foil
Spectrometers
detectors
thin films
assembling

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Development of a prototype superconducting X-ray spectrometer using a Ta crystal as an absorber. / Netel, H.; Frank, Matthias; Labov, S. E.; Campbell, G. H.; Mears, C. A.; Brunet, E.; Hiller, L. J.; Lindeman, M. A.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 370, No. 1, 11.02.1996, p. 47-49.

Research output: Contribution to journalArticle

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