Accurate thermal conductance and impedance measurements of transition edge sensors

M. A. Lindeman, K. A. Barger, D. E. Brandl, S. G. Crowder, L. Rocks, D. McCammon

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Past measurements of the thermal coupling of superconducting transition edge sensor (TES) calorimeters suspended on SiN membranes produced wide-ranging values for the exponent of the thermal coupling through the membranes. We present a measurement technique that is less susceptible to current dependence of the phase transition than the previous measurements. An initial measurement produced the expected exponent for a 2-D phonon gas: thermal conductance is proportional to T 2. In doing these measurements, we employ a modification to Lindeman's equivalent circuit technique for measuring TES complex impedance.

Original languageEnglish (US)
Pages (from-to)180-184
Number of pages5
JournalJournal of Low Temperature Physics
Volume151
Issue number1-2 PART 1
DOIs
StatePublished - Apr 2008

Bibliographical note

Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.

Keywords

  • Bolometer
  • Calorimeter
  • Impedance
  • Norton
  • TES
  • Thermal conductance
  • Thevenin

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