Thermalization efficiency of superconducting absorbers for thermal X-ray microcalorimeters

Marco Barbera, Silver, Perinati, Serio, Barbera

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1 Citazioni (Scopus)

Abstract

The persistence of long living quasiparticles created in the energy thermalization process can affect the performances of a thermal X-ray microcalorimeter with superconducting absorber. Numerical simulations indicate that in an ab- sorber made of high-purity Sn, operated at temperatures lower than 100 mK, up to 60% of the deposited energy can remain trapped in the quasiparticle system for a time much longer than the time scale of the thermal sensor response, producing a reduction of the SNR of the detector. Other pure superconductors can present the same problem and therefore a microscopic analysis of the physical properties can be useful to identify suitable absorbing materials and optimize the detector performances.
Lingua originaleEnglish
pagine (da-a)820-821
Numero di pagine2
RivistaPHYSICA. C, SUPERCONDUCTIVITY
Volume408
Stato di pubblicazionePublished - 2004

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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