Operation of a TES microcalorimeter cooled by a compact liquid-helium-free 3He-4He dilution refrigerator directly coupled to a Gifford-McMahon cooler

T. Umeno, K. Maehata, K. Ishibashi, Y. Kamioka, S. Yoshida, K. Takasaki, K. Tanaka

研究成果: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

A superconducting transition edge thermosensor (TES) microcalorimeter was irradiated with LX-ray photons emitted by an 241Am source maintained at an operating temperature of 120 mK using a compact liquid-helium-free 3He-4He dilution refrigerator directly coupled to a Gifford-McMahon (GM) cooler. The first and second stages of the GM cooler were directly coupled to the first and second pre-cool heat exchangers of a stick shaped dilution unit through copper plates in a vacuum chamber. The helium-free dilution refrigerator provided a cooling power of 20 μW at 100 mK. Detection signals of LX-ray photons emitted by the 241Am source were observed by operating the TES microcalorimeter in a severe noise environment induced by the mechanical vibrations of the GM cooler.

本文言語英語
ページ(範囲)314-319
ページ数6
ジャーナルCryogenics
50
5
DOI
出版ステータス出版済み - 5 2010
外部発表はい

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 物理学および天文学(全般)

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