Title :
Development of a Gamma-Ray Detector With Iridium Transition Edge Sensor Coupled to a Pb Absorber
Author :
Damayanthi, Rathnayaka Mudiyanselage Thushara ; Leman, Steven W. ; Takahashi, Hiroyuki ; Ohno, Masashi ; Minamikawa, Yasuhiro ; Nishimura, Kentaro ; Iyomoto, Naoko
Author_Institution :
Dept. of Nucl. Eng. & Manage., Univ. of Tokyo, Tokyo, Japan
fDate :
6/1/2009 12:00:00 AM
Abstract :
We have recently started to develop a high-resolution gamma-ray spectrometer for material defect analysis. Our gamma-ray detector is a microcalorimeter consisting of an iridium/gold bilayer transition edge sensor (TES) thermometer and a bulk Pb absorber, which is directly coupled to a TES with Stycast 2850FT epoxy. This paper describes our TES based gamma-ray detector and the first experimental results for 662 keV and 1173 keV incident gamma-rays. We report an energy resolution of 4.7 keV at 662 keV and 2.9 keV at 1173 keV.
Keywords :
gamma-ray detection; gamma-ray spectrometers; particle calorimetry; thermometers; Pb absorber; Stycast 2850FT epoxy; energy resolution; gamma-ray detector; high-resolution gamma-ray spectrometer; iridium transition edge sensor; iridium-gold bilayer transition edge sensor thermometer; microcalorimeter; Bulk Pb absorber; gamma-ray spectroscopy; iridium; transition-edge sensors;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2009.2019295
