Non-linear effects in transition edge sensors for X-ray detection

S. R. Bandler, E. Figueroa-Feliciano, Naoko Iyomoto, R. L. Kelley, C. A. Kilbourne, K. D. Murphy, F. S. Porter, T. Saab, J. Sadleir

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

In a microcalorimeter that uses a transition-edge sensor to detect energy depositions, the small signal energy resolution improves with decreasing heat capacity. This improvement remains true up to the point where non-linear and saturation effects become significant. This happens when the energy deposition causes a significant change in the sensor resistance. Not only does the signal size become a non-linear function of the energy deposited, but also the noise becomes non-stationary over the duration of the pulse. Algorithms have been developed that can calculate the optimal performance given this non-linear behavior that typically requires significant processing and calibration work-both of which are impractical for space missions. We have investigated the relative importance of the various non-linear effects, with the hope that a computationally simple transformation can overcome the largest of the non-linear and non-stationary effects, producing a highly linear "gain" for pulse-height versus energy, and close to the best energy resolution at all energies when using a Wiener filter.

Original languageEnglish
Pages (from-to)817-819
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume559
Issue number2
DOIs
Publication statusPublished - Apr 14 2006
Externally publishedYes

Fingerprint

X rays
sensors
Sensors
Specific heat
x rays
Calibration
energy
Processing
space missions
pulse amplitude
calorimeters
specific heat
saturation
filters
causes
pulses

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Non-linear effects in transition edge sensors for X-ray detection. / Bandler, S. R.; Figueroa-Feliciano, E.; Iyomoto, Naoko; Kelley, R. L.; Kilbourne, C. A.; Murphy, K. D.; Porter, F. S.; Saab, T.; Sadleir, J.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 559, No. 2, 14.04.2006, p. 817-819.

Research output: Contribution to journalArticle

Bandler, S. R. ; Figueroa-Feliciano, E. ; Iyomoto, Naoko ; Kelley, R. L. ; Kilbourne, C. A. ; Murphy, K. D. ; Porter, F. S. ; Saab, T. ; Sadleir, J. / Non-linear effects in transition edge sensors for X-ray detection. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2006 ; Vol. 559, No. 2. pp. 817-819.
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