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Title: Impedance Measurement of a Gamma-Ray TES Calorimeter with a Bulk Sn Absorber

Abstract

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 G{sub a} 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.

Authors:
; ; ; ;  [1]; ; ;  [2];  [3];  [4]
  1. Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397 (Japan)
  2. Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510 (Japan)
  3. National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan)
  4. Seiko Instruments inc, (SII) 563 Takatsuka-Shinden, Matsudo, Chiba 270-2222 (Japan)
Publication Date:
OSTI Identifier:
21325790
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1185; Journal Issue: 1; Conference: LTD13: 13. international workshop on low temperature detectors, Stanford, CA (United States), 20-24 Jul 2009; Other Information: DOI: 10.1063/1.3292312; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CALORIMETERS; ENERGY RESOLUTION; FLUCTUATIONS; FREQUENCY DEPENDENCE; GAMMA DETECTION; GOLD; IMPEDANCE; KEV RANGE; NOISE; PHASE TRANSFORMATIONS; PHONONS; RADIATION DETECTORS; SUPERCONDUCTING DEVICES; THERMAL CONDUCTIVITY; TIN; TITANIUM; TRANSITION TEMPERATURE; TWO-BODY PROBLEM

Citation Formats

Akamatsu, H., Ishisaki, Y., Hoshino, A., Ezoe, Y., Ohashi, T., Takei, Y., Yamasaki, N. Y., Mitsuda, K., Oshima, T., and Tanaka, K. Impedance Measurement of a Gamma-Ray TES Calorimeter with a Bulk Sn Absorber. United States: N. p., 2009. Web. doi:10.1063/1.3292312.
Akamatsu, H., Ishisaki, Y., Hoshino, A., Ezoe, Y., Ohashi, T., Takei, Y., Yamasaki, N. Y., Mitsuda, K., Oshima, T., & Tanaka, K. Impedance Measurement of a Gamma-Ray TES Calorimeter with a Bulk Sn Absorber. United States. doi:10.1063/1.3292312.
Akamatsu, H., Ishisaki, Y., Hoshino, A., Ezoe, Y., Ohashi, T., Takei, Y., Yamasaki, N. Y., Mitsuda, K., Oshima, T., and Tanaka, K. Wed . "Impedance Measurement of a Gamma-Ray TES Calorimeter with a Bulk Sn Absorber". United States. doi:10.1063/1.3292312.
@article{osti_21325790,
title = {Impedance Measurement of a Gamma-Ray TES Calorimeter with a Bulk Sn Absorber},
author = {Akamatsu, H. and Ishisaki, Y. and Hoshino, A. and Ezoe, Y. and Ohashi, T. and Takei, Y. and Yamasaki, N. Y. and Mitsuda, K. and Oshima, T. and Tanaka, K.},
abstractNote = {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 G{sub a} 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.},
doi = {10.1063/1.3292312},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1185,
place = {United States},
year = {Wed Dec 16 00:00:00 EST 2009},
month = {Wed Dec 16 00:00:00 EST 2009}
}