A cryopump-operated rotating nuclear demagnetization cryostat for research on superfluid sup 3 He

Journal Article · Sat Jul 01 04:00:00 EDT 1989 · Journal of Low Temperature Physics; (USA)

DOI:https://doi.org/10.1007/BF00682269· OSTI ID:6169902

Salmelin, R H; Kyynaeraeinen, J M; Berglund, M P; Pekola, J P ^[1]

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1. Helsinki Univ. of Technology, Espoo (Finland)

The authors have constructed a rotating submillikelvin cryostat in which the dilution refrigerator can be operated in a continuous mode using two cryopumps. The {sup 4}He pot is also equipped with similar pumps. The dilution unit is employed to precool a nuclear stage with 32 mol of copper in an 8-T field. In the design, special care was taken to make fast rotations possible. The apparatus is currently used to measure collective mode phenomena in superfluid {sup 3}He-B.

• OSTI ID: 6169902
• Journal Information: Journal of Low Temperature Physics; (USA), Journal Name: Journal of Low Temperature Physics; (USA) Vol. 76:1-2; ISSN 0022-2291; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
640450 -- Fluid Physics-- Superfluidity
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ADSORPTION
BIOLOGICAL SHIELDS
CONTROL EQUIPMENT
COOLING
CRYOPUMPS
CRYOSTATS
DEMAGNETIZATION
DESIGN
DESORPTION
EQUIPMENT
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
HEAT EXCHANGERS
HEAT RECOVERY EQUIPMENT
HELIUM 3
HELIUM 4
HELIUM DILUTION REFRIGERATORS
HELIUM ISOTOPES
ISOTOPES
LABORATORY EQUIPMENT
LIGHT NUCLEI
MAGNETIC FIELDS
MAGNETIC RESONANCE
MEASURING INSTRUMENTS
MOTION
NUCLEAR MAGNETIC RESONANCE
NUCLEI
OPERATION
OSCILLATION MODES
PERFORMANCE
PUMPS
REFRIGERATORS
REGENERATION
RESONANCE
RF SYSTEMS
ROTATION
SHIELDS
SORPTION
SOUND WAVES
STABLE ISOTOPES
SUPERFLUIDITY
TEST FACILITIES
THERMOMETERS
THERMOSTATS
TRANSDUCERS
ULTRALOW TEMPERATURE
ULTRASONIC WAVES
VACUUM PUMPS