A monolithic superconducting micro-calorimeter for X-ray detection

A. Von Kienlin, M. Galeazzi, F. Gatti, S. Vitale

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

A cryogenic micro-calorimeter detector using a small bulk iridium single crystal as both absorber and as transition edge thermometer has been prepared. The detector is voltage biased, and the current through it is measured with a DC-SQUID. In this mode of operation an improvement of the detector performance by the electrothermal feedback is expected. In fact, we observed a stabilization of the working temperature due to this effect. By irradiating the micro-calorimeter with an 241Am X-ray and y-ray source an RMS energy resolution of σ = 150 eV for 14 keV X-rays and σ = 250 eV for 60 keV γ-rays was observed.

Original languageEnglish (US)
Pages (from-to)135-139
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume412
Issue number1
DOIs
StatePublished - Jun 21 1998
Externally publishedYes

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Keywords

  • Low-temperature detector
  • Micro-calorimeter
  • Transition edge sensor
  • X-ray detector

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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