"JOURNAL OF RADIO ELECTRONICS"  N 11, 2011

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CALCULATION OF LINEAR IN POWER CORRECTIONS TO SPECTRAL FUNCTIONS OF A SUPERCONDUCTOR AND OF THEIR CONTRIBUTION TO RESPONSE OF SUPERCONDUCTING DETECTORS

 

A. V. Semenov1, I. A. Devyatov2, A. V. Smirnov1, B. M. Voronov1, R. V. Ozhegov1, I. V. Tretyakov1, S. A. Ryabchun1, G. M. Chulkova1, D. V. Petrenko1, A. V. Antipov1

 

1 Moscow State Pedagogical University

2 Skobelitsyn Institute of Nuclear Physics, Moscow State University

Received October 31, 2011

 

Abstract. We investigate contribution to the detectivity of superconducting radiation sensors, originated from a change in spectral functions of the absorber under influence of the absorbed power. For the absorber manufactured of dirty superconducting film we demonstrate that at low temperature the only cause of the change in spectral functions is the change of the order parameter. A method for calculation corrections to the spectral functions for the case of dirty film is suggested.

Keywords: superconducting radiation sensors, spectral functions of a superconductor, superconductivity.