Title of article
A monolithic superconducting micro-calorimeter for X-ray detection
Author/Authors
Kienlin، نويسنده , , A.von and Galeazzi، نويسنده , , M. and Gatti، نويسنده , , F. and Vitale، نويسنده , , S.، نويسنده ,
Pages
5
From page
135
To page
139
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 γ-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.
Keywords
X-ray detector , Low-temperature detector , Micro-calorimeter , Transition edge sensor
Journal title
Astroparticle Physics
Record number
2005669
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