Performance analyses of TES microcalorimeters with mushroom shaped X-ray absorbers made of Sn or Bi

Y. Ishisaki*, U. Morita, T. Koga, K. Shinozaki, K. Sato, N. Takai, T. Ohashi, T. Arakawa, H. Kudo, H. Sato, H. Kobayashi, T. Izumi, S. Ohtsuka, K. Mori, S. Shoji, T. Osaka, T. Homma, K. Mitsuda, N. Y. Yamasaki, R. FujimotoN. Iyomoto, T. Oshima, K. Futamoto, Y. Takei, T. Ichitsubo, T. Fujimori, K. Yoshida, Y. Kuroda, M. Onishi, M. Goto, F. Beppu

*この研究の対応する著者

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Performance of microcalorimeters with a Ti/Au transition-edge sensor (TES) and an electrodeposited absorber has been investigated. The absorbers are in a mushroom-shape made of Sn or Bi. With an Sn absorber we observed a long time scale component of 1.8 ms for X-ray pulses, which is due presumably to recombination of quasiparticles into phonons. As a result, the energy resolution is not good with the Sn absorber. Better energy resolution of 28±1 eV was obtained with an incomplete-shaped Bi absorber, although the long component was also seen with smaller level. A calorimeter with only a neck of the Au seed layer for the electrodeposition had the best energy resolution of 6.3±0.4 eV in spite of saturated pulses and relatively high transition temperature of 210 mK.

本文言語English
ページ(範囲)452-455
ページ数4
ジャーナルNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
520
1-3
DOI
出版ステータスPublished - 2004 3月 11

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 器械工学

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