Low-Energy Response of Superconducting Tunnel Junction X-ray Spectrometers

Simon E. Labov; L. H. Hiller; C. A. Mears; Matthias Frank; H. Netel; F. Azgui; A. T. Barfknecht

doi:10.1109/77.403231

Low-Energy Response of Superconducting Tunnel Junction X-ray Spectrometers

Simon E. Labov, L. H. Hiller, C. A. Mears, Matthias Frank, H. Netel, F. Azgui, A. T. Barfknecht

Research output: Contribution to journal › Article

15 Scopus citations

Abstract

Thin film structures incorporating metallic superconducting layers and tunnel junctions can be configured as low-energy X-ray spectrometers. We present results obtained when low-energy X-rays are absorbed in niobium films coupled to aluminum layers that serve as quasiparticle traps in an Nb/Al/Al2O3/Al/Nb tunnel junction X-ray detector. The linearity of the pulse height as a function of energy is discussed along with the energy dependence of the observed resolution and its relation to the broadening mechanisms. A resolution of 14 eV at 1 keV has been measured with our detector cooled to 03 K.

Original language	English (US)
Pages (from-to)	3034-3037
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	5
Issue number	2
DOIs	https://doi.org/10.1109/77.403231
State	Published - Jan 1 1995
Externally published	Yes

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ASJC Scopus subject areas

Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Physics and Astronomy (miscellaneous)

Cite this

Labov, S. E., Hiller, L. H., Mears, C. A., Frank, M., Netel, H., Azgui, F., & Barfknecht, A. T. (1995). Low-Energy Response of Superconducting Tunnel Junction X-ray Spectrometers. IEEE Transactions on Applied Superconductivity, 5(2), 3034-3037. https://doi.org/10.1109/77.403231

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10.1109/77.403231