Development of Adiabatic Demagnetization Refrigerator for X-ray Microcalorimeter Operation

We are developing of adiabatic demagnetization refrigerator for X-ray microcalorimeter operation. By improving thermal environment in the cryostat, it achieved the lowest temperature of 80 mK, temperature stability of 9 μK rms at 100 mK, and a hold time of 7 hours at 100 mK. The excess heat load to...

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Veröffentlicht in:	Journal of low temperature physics 2012-05, Vol.167 (3-4), p.554-560
Hauptverfasser:	Hoshino, A., Yatsu, T., Kunihisa, T., Koi, N., Notsuke, M., Fujimoto, R., Yamamoto, R., Shinozaki, K.
Format:	Artikel
Sprache:	eng
Schlagworte:	Characterization and Evaluation of Materials Condensed Matter Physics Magnetic Materials Magnetism Physics Physics and Astronomy
Online-Zugang:	Volltext
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Zusammenfassung:	We are developing of adiabatic demagnetization refrigerator for X-ray microcalorimeter operation. By improving thermal environment in the cryostat, it achieved the lowest temperature of 80 mK, temperature stability of 9 μK rms at 100 mK, and a hold time of 7 hours at 100 mK. The excess heat load to the saltpill decreased from 10 μW to 3 μW. Using this system, we demonstrated a measurement of R – T curve of a TES microcalorimeter and ϕ – V curve of a SQUID.
ISSN:	0022-2291 1573-7357
DOI:	10.1007/s10909-012-0592-9