Thermal Conductance of Thick-Membrane TES Microcalorimeters for Several-MeV Gamma Rays

Tetsuya Tsuruta, Yukino Hamamura, Naoko Iyomoto, Yunosuke Nakamura, Shotaro Kawaguchi, Tasuku Hayashi, Yuta Yagi, Noriko Yamasaki, Kazuhisa Mitsuda

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)

抄録

We developed transition-edge sensor (TES) microcalorimeters to measure gamma rays with up to a few megaelectron volts. Our TES devices have a thick silicon membrane that supports a large absorber. We fabricated devices with different sizes of the TES and membranes to study the thermal conductance of the membrane. We found that the thermal conductance G of the membrane is less dependent on the distance between the TES and heat bath because heat is mainly transported by ballistic phonons in the thick membrane. In addition, gamma-ray irradiation experiments were conducted using a TES device with a large bismuth absorber (1 mm × 1 mm × 1 mm) and a thick membrane (6 μm); the energy response of the device was found to be largely linear.

本文言語英語
ページ(範囲)449-456
ページ数8
ジャーナルJournal of Low Temperature Physics
209
3-4
DOI
出版ステータス出版済み - 11月 2022

!!!All Science Journal Classification (ASJC) codes

  • 原子分子物理学および光学
  • 材料科学一般
  • 凝縮系物理学

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