A 1400 Liter 1.8 K Test Facility
A double bath superfluid helium dewar has been constructed and operated at Fermilab’s Magnet Test Facility. The 1.8 K portion of the dewar is sized to contain a superconducting magnet up to 0.5 meters in diameter and 4 meters long in a vertical orientation in 0.12 MPa pressurized superfluid. The dewar can also provide a subcooled Helium I environment for tests; the entire temperature range from 4.4 K to 1.8 K at 0.12 MPa is available. This paper describes the system design, lambda plate, heat exchanger, and performance.
KeywordsHeat Exchanger Liquid Helium Copper Tube Vacuum Vessel Heat Transfer Distribution
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- 1.G. Claudet, et al., The design and operation of a refrigerator system using superfluid helium, in: “Proceedings of the 5th International Cryogenic Engineering Conference,” Kyoto (1974), pp. 265–267.Google Scholar
- 2.G. Claudet, et al., Superfluid helium bath for superconducting magnets, in: “Proceedings of the 6th Cryogenic Engineering Conference,” Grenoble (1976), pp. 159–162.Google Scholar