Development of Adiabatic Demagnetization Refrigerator for X-ray mirocalorimeter experiments

Sato, Kosuke; Wada, Akane; Yatsu, Takahiro; Fujimoto, R.; Murakami, T.; Shinozaki, Kazuo

doi:10.1063/1.3292430

Cited by 2 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We fabricated a paramagnetic salt pill for the colder stage in our lab, using ferric ammonium alum (FAA) [7]. FAA is widely used in ADRs for 50-100 mK, because of its suitable properties [8].…”

Section: In-house Fabrication Of Paramagnetic Salt Pillmentioning

confidence: 99%

“…Around the He tank and the shield, there are two vapor-cooled radiation shields. Details are described in [7]. To reduce radiation into He, 10-20 layers of MLI (multi-layer insulation) were installed around the two vapor-cooled radiation shields.…”

Section: Cryostat and Experimental Setupmentioning

confidence: 99%

“…We are now developing a compact dualstage ADR to operate X-ray microcalorimeters, with future γ-ray burst missions in mind [7]. So far, we fabricated the colder stage of the ADR and tested it.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Development of an Adiabatic Demagnetization Refrigerator for X-ray Microcalorimeter Operations

Fujimoto¹,

Sato²,

Wada³

et al. 2010

AIP Conference Proceedings

Self Cite

View full text Add to dashboard Cite

Abstract.An X-ray microcalorimeter is a non-dispersive spectrometer that measures the energy of an incident X-ray photon as a temperature rise. Operated at < 0.1 K, it achieves very high resolving power. We are developing X-ray microcalorimeters for future γ-ray burst observations, and are now setting up a compact adiabatic demagnetization refrigerator (ADR) for X-ray microcalorimeter operations. We fabricated a paramagnetic salt pill, and integrated it with a superconducting magnet and a heat-switch in a dedicated He cryostat. By applying a magnetic field of 2.6 T at the bath temperature of 1.8 K, it achieved 0.1 K. The attainable temperature and the hold time were, however, limited due to unexpected heat load. We also successfully measured a resistance-temperature characteristics of a superconducting transition edge.

show abstract

Section: In-house Fabrication Of Paramagnetic Salt Pillmentioning

confidence: 99%

Section: Cryostat and Experimental Setupmentioning

confidence: 99%

See 1 more Smart Citation

Development of an Adiabatic Demagnetization Refrigerator for X-ray Microcalorimeter Operations

Fujimoto¹,

Sato²,

Wada³

et al. 2010

AIP Conference Proceedings

Self Cite

View full text Add to dashboard Cite

show abstract

Development of Adiabatic Demagnetization Refrigerator for X-ray Microcalorimeter Operation

et al. 2012

View full text Add to dashboard Cite

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.

show abstract

Development of Adiabatic Demagnetization Refrigerator for X-ray mirocalorimeter experiments

Cited by 2 publications

References 0 publications

Development of an Adiabatic Demagnetization Refrigerator for X-ray Microcalorimeter Operations

Development of an Adiabatic Demagnetization Refrigerator for X-ray Microcalorimeter Operations

Development of Adiabatic Demagnetization Refrigerator for X-ray Microcalorimeter Operation

Contact Info

Product

Resources

About