An analytical model for pulse shape and electrothermal stability in two-body transition-edge sensor microcalorimeters

High-resolution superconducting gamma-ray sensors show potential for the more accurate analysis of nuclear material. These devices are part of a larger class of microcalorimeters and bolometers based on transition edge sensors (TESs) that have two distinct thermal bodies. We derive the time domain b...

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Bibliographic Details
Published in:Applied physics letters 2010-09, Vol.97 (10)
Main Authors: Bennett, D. A., Horansky, R. D., Hoover, A. S., Hoteling, N. J., Rabin, M. W., Schmidt, D. R., Swetz, D. S., Vale, L. R., Ullom, J. N.
Format: Article
Language:English
Subjects:
BOLOMETERS
CALORIMETERS
CALORIMETRY
CURRENTS
DESIGN
DETECTION
ELECTRIC CURRENTS
ELECTRONIC CIRCUITS
GAMMA DETECTION
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
MEASURING INSTRUMENTS
PULSE CIRCUITS
PULSE SHAPERS
RADIATION DETECTION
RADIATION DETECTORS
RESOLUTION
SENSORS
SIGNAL CONDITIONERS
SUPERCONDUCTING DEVICES
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Summary:High-resolution superconducting gamma-ray sensors show potential for the more accurate analysis of nuclear material. These devices are part of a larger class of microcalorimeters and bolometers based on transition edge sensors (TESs) that have two distinct thermal bodies. We derive the time domain behavior of the current and temperature for compound TES devices in the small signal limit and demonstrate the utility of these equations for device design and characterization. In particular, we use the model to fit pulses from our gamma-ray microcalorimeters and demonstrate how critical damping and electrothermal stability can be predicted.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3486477