Two models for bolometer and microcalorimeter detectors with complex thermal architectures

J. W. Appel, M. Galeazzi

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


We have developed two analytical models to describe the performance of cryogenic microcalorimeters and bolometers. One of the models is suitable to describe Transition Edge Sensor (TES) detectors with an integrated absorber, the other is suitable for detectors with large absorbers. Both models take into account hot-electron decoupling and absorber decoupling. The differential equations describing these models have been solved using block diagram algebra. Each model has produced closed-form solutions for the detector's responsivity, dynamic impedance, and noise equivalent power for phonon noise, Johnson noise, amplifier noise, 1 / f noise, and load resistor noise.

Original languageEnglish (US)
Pages (from-to)272-280
Number of pages9
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1
StatePublished - Jun 15 2006


  • Bolometers
  • Microcalorimeters
  • Noise

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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