NASA NTRS · 19720000301
Multipurpose top for liquid helium Dewar
Abstract
Multipurpose top was fabricated for liquid helium Dewar flask which guards against flash vaporization of liquid helium and allows boiling temperature of liquid helium to be lowered by reduction of ambient pressure in Dewar flask. Device is rugged and simple, and does not require frequent calibrations or adjustments.
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Murphy, R. S., Anderholm, J. R.. 1972-09-01. Multipurpose top for liquid helium Dewar. https://ntrs.nasa.gov/citations/19720000301
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