Computer Science
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1185..191a&link_type=abstract
THE THIRTEENTH INTERNATIONAL WORKSHOP ON LOW TEMPERATURE DETECTORS-LTD13. AIP Conference Proceedings, Volume 1185, pp. 191-194
Computer Science
Telescopes, Calorimeters, Thermal Conductivity, X- And Gamma-Ray Telescopes And Instrumentation, Calorimeters, Electrical And Thermal Conduction In Crystalline Metals And Alloys
Scientific paper
We performed complex impedance measurements with a Ti/Au-based gamma-ray TES calorimeter with a bulk Sn absorber. Excellent energy resolution of 38.4+/-0.9eV at 60 keV was observed. The impedance of the calorimeter can be well explained by a two-body thermal model. We investigated the behavior of the parameters of the calorimeter during the superconducting-to-normal transition. We confirmed that C and Ga are in good agreement with the predicted values. We performed a noise analysis and found several excess noise components, as well as internal thermal fluctuation noise (ITFN) term due to the thermal conductance between the Sn absorber and the Ti/Au TES. Dominanting the noise is an excess noise having a similar frequency dependence to the phonon noise and the ITFN noise.
Akamatsu Hiroki
Ezoe Yu-ichiro
Hoshino Akio
Ishisaki Yoshitaka
Mitsuda Kazu
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