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Proceedings Paper

Nb tunnel junctions as x-ray spectrometers
Author(s): Nicola Rando; Anthony J. Peacock; Clare L. Foden; Axel van Dordrecht; Ralph Engelhardt; John M. Lumley; Carl Pereira
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Paper Abstract

The properties of niobium superconducting tunnel junctions as x-ray detectors are investigated. The charge output, which depends on the geometry of the system, is severely reduced by self recombination in small size junctions and the specific characteristics of the barrier. These loss mechanisms, coupled with another energy loss mechanism due to phonon propagation into the substrate, cause additional variances on the charge output, which degrade the energy resolution.

Paper Details

Date Published: 1 October 1991
PDF: 17 pages
Proc. SPIE 1549, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy II, (1 October 1991); doi: 10.1117/12.48352
Show Author Affiliations
Nicola Rando, European Space Agency/ESTEC (Netherlands)
Anthony J. Peacock, European Space Agency/ESTEC (Netherlands)
Clare L. Foden, European Space Agency/ESTEC (Netherlands)
Axel van Dordrecht, European Space Agency/ESTEC (Netherlands)
Ralph Engelhardt, European Space Agency/ESTEC (Netherlands)
John M. Lumley, Cryogenics Consultants Ltd. (United Kingdom)
Carl Pereira, Cryogenics Consultants Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 1549:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy II
Oswald H. W. Siegmund; Richard E. Rothschild, Editor(s)

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