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

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)314-319
Number of pages6
JournalCryogenics
Volume50
Issue number5
DOIs
Publication statusPublished - May 1 2010

Fingerprint

Helium
Refrigerators
refrigerators
coolers
liquid helium
Dilution
calorimeters
dilution
rays
Liquids
Photons
signal detection
Signal detection
photons
heat exchangers
vacuum chambers
operating temperature
Heat exchangers
Copper
helium

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Operation of a TES microcalorimeter cooled by a compact liquid-helium-free 3He-4He dilution refrigerator directly coupled to a Gifford-McMahon cooler. / Umeno, T.; Maehata, K.; Ishibashi, K.; Kamioka, Y.; Yoshida, S.; Takasaki, K.; Tanaka, K.

In: Cryogenics, Vol. 50, No. 5, 01.05.2010, p. 314-319.

Research output: Contribution to journalArticle

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