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Title: 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 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.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [3] ;  [3]
  1. Stanford Univ., Stanford, CA (United States)
  2. Santa Clara Univ., Santa Clara, CA (United States)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
OSTI Identifier:
1183238
Grant/Contract Number:
PHY-1102842; FG02-13ER41918; SC000984
Type:
Published Article
Journal Name:
AIP Advances
Additional Journal Information:
Journal Volume: 4; Journal Issue: 11; Journal ID: ISSN 2158-3226
Publisher:
American Institute of Physics (AIP)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; superconductivity models; superconducting detectors; silicon detectors; superconducting transitions; cold dark matter