The new SMC dilution refrigerator

Journal Article · Fri Sep 01 04:00:00 EDT 1995 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.48921· OSTI ID:254130

Kyynaeraeinen, J M ^[1]; Berglund, M P ^[2]; Niinikoski, T O ^[1]

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1. CERN, 1211 Geneva 23 (Switzerland)
2. Low Temperature Laboratory and Institute of Particle Physics Technology, Helsinki University of Technology, 02150 Espoo (Finland)

The dilution refrigerator for the SMC twin solid polarized target at CERN is by far the largest one in operation. The 2.5 liter, 1.5 m long target is loaded horizontally into the cold mixing chamber. A cooling power of 400 mW at 300 mK temperature is available for dynamic nuclear polarization. Proton and deuteron targets are polarized to {plus_minus}94{percent} and {plus_minus}47{percent}, respectively. The base temperature of 30 mK enables rotation of the polarization vector without losses. {copyright} {ital 1995 American Institute of Physics.}

• Sponsoring Organization: USDOE
• OSTI ID: 254130
• Report Number(s): CONF-9409103--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 343; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
66 PHYSICS
CRYOGENICS
HELIUM DILUTION REFRIGERATORS
MILLIWATT POWER RANGE
POLARIZED TARGETS
TEMPERATURE RANGE 0000-0013 K