Thermal assessment of a transition-edge high Tc superconductor infrarfed detector

S. Kumar, A. Joshi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper examines the thermal response of a superconductor infrared detector. A simple design is considered that consists of a superconductor film sandwiched between a radiation absorber and a substrate. The substrate is mounted on a heat sink maintained at approximately the midpoint of the superconducting transition temperature range. The rapid change in resistivity in this temperature range is monitored to detect incoming radiation heat. A bias current flows through the superconductor film and the resulting heat transfer equations are highly non-linear due to the complicated Joule heating term. A parametric study is conducted to examine the effects of incoming radiation flux and bias current on the sensitivity and response of the device. The results indicate that the response is a strong function of the bias current.

Original languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
EditorsJ.G. Geogiadis, J.Y. Murthy
PublisherPubl by ASME
Pages173-179
Number of pages7
Volume137
StatePublished - 1990
EventParallel and Vector Computation in Heat Transfer - Presented at AIAA/ASME Thermophysics and Heat Transfer Conference - Seattle, WA, USA
Duration: Jun 18 1990Jun 20 1990

Other

OtherParallel and Vector Computation in Heat Transfer - Presented at AIAA/ASME Thermophysics and Heat Transfer Conference
CitySeattle, WA, USA
Period6/18/906/20/90

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering

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