helium refrigerator

helium refrigerator

[′hē·lē·əm ri′frij·ə‚rād·ər]
(mechanical engineering)
A refrigerator which uses liquid helium to cool substances to temperatures of 4 K or less.
References in periodicals archive ?
Tenders invited for closed cycle helium refrigerator (ccr) for single crystal neutron diffraction study
In the present studies, the high purity ortho-deuterium gas was prepared with the magnetic catalyser OXISORB (2,3) contained in an aluminum cartridge and inserted in the 30 mm [phi] X 50 mm/copper cell at the top of a two-stage helium refrigerator CryoMini (4) Model-D510 with the cooling capability down to about 9 K, then ortho-concentration of about 98% was attained [10] by the direct contact of liquid deuterium with the catalyser at the temperature a little below 20 K.
Tenders invited for Supply of closed cycle helium refrigerator (ccr) based cryostat for neutron scattering experiments.
Contract notice: Acquisition of a helium refrigerator in closed circuit
Tenders invited for Design, engineering, drawing approval, fabrication, manufacturing, testing, pre-despatch inspection, packing, supply & warranty/guarantee of coldbox for helium refrigerator
Tenders are invited for Closed cycle helium refrigerator
Replacement of the current system based on a cryostat equipped with a helium refrigerator 4 (1.5 K of base temperature), a measuring rod and a 14 T (4 K) magnet, cooled with liquid helium.
Contract award: Delivery of helium refrigerator cryostat and temperature controller