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Proceedings Paper

Development of a superconducting-tunnel-junction array for x-ray astronomy
Author(s): Roland H. den Hartog; Anthony J. Peacock; Peter Verhoeve; Fred A. Jansen; J. Verveer; Axel van Dordrecht; J. Salmi; R. Venn
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Paper Abstract

Arrays of superconducting tunnel junctions (STJs) provide the possibility to perform high-resolution imaging spectrophotometry at x-ray wavelengths. We describe the applications of STJ arrays to x-ray astronomy, and present measurements on a 3 by 3 test array of Nb/Al-based STJs, operated at a temperature of 1.2 K, which illustrate the current photometric and spectroscopic capabilities of such devices. These results demonstrate the basic experimental feasibility of STJ arrays and indicate that there are no fundamental problems to be expected in the development of large-format x-ray detector arrays based on STJs.

Paper Details

Date Published: 15 October 1997
PDF: 12 pages
Proc. SPIE 3114, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VIII, (15 October 1997); doi: 10.1117/12.283776
Show Author Affiliations
Roland H. den Hartog, European Space Agency/ESTEC (Netherlands)
Anthony J. Peacock, European Space Agency/ESTEC (Netherlands)
Peter Verhoeve, European Space Agency/ESTEC (Netherlands)
Fred A. Jansen, European Space Agency/ESTEC (Netherlands)
J. Verveer, European Space Agency/ESTEC (Netherlands)
Axel van Dordrecht, European Space Agency/ESTEC (Netherlands)
J. Salmi, VTT Electronics (Finland)
R. Venn, Microfab Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 3114:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VIII
Oswald H. W. Siegmund; Mark A. Gummin, Editor(s)

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