Nonlinear optimal filter technique for analyzing energy depositions in TES sensors driven into saturation

We present a detailed thermal and electrical model of superconducting transition edge sensors (TESs) connected to quasiparticle (qp) traps, such as the W TESs connected to Al qp traps used for CDMS (Cryogenic Dark Matter Search) Ge and Si detectors. We show that this improved model, together with a...

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Bibliographic Details
Published in:AIP advances 2014-11, Vol.4 (11), p.117106-117106-7
Main Authors: Shank, B., Yen, J. J., Cabrera, B., Kreikebaum, J. M., Moffatt, R., Redl, P., Young, B. A., Brink, P. L., Cherry, M., Tomada, A.
Format: Article
Language:English
Subjects:
ASTRONOMY AND ASTROPHYSICS
cold dark matter
Dark matter
Energy resolution
Germanium
Saturation
Sensors
Silicon
silicon detectors
superconducting detectors
superconducting transitions
superconductivity models
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Summary:We present a detailed thermal and electrical model of superconducting transition edge sensors (TESs) connected to quasiparticle (qp) traps, such as the W TESs connected to Al qp traps used for CDMS (Cryogenic Dark Matter Search) Ge and Si detectors. We show that this improved model, together with a straightforward time-domain optimal filter, can be used to analyze pulses well into the nonlinear saturation region and reconstruct absorbed energies with optimal energy resolution.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.4901291