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Design of a Low Gravity Simulator for Performing Non-Equilibrium Investigations near the Lambda Transition of ^4HeA design is presented of a low gravity simulator where a magnetic field gradient is employed to oppose the hydrostatic pressure effects of gravity. It appears feasible to reduce the effective gravity environment of the helium in the cell by about two orders of magnitude. The corresponding shift in transition temperature with vertical height would be reduced to 12.7 nK/cm. Methods for instrumenting the simulator to perform high resolution investigations of non-equilibrium phenomena near the lambda point are presented. The advantages of using a low gravity simulator in searching for the predicted change in character of the superfluid transition from continuous to first order in the presence of a heat current are also discussed.
Document ID
20060039017
Acquisition Source
Jet Propulsion Laboratory
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Israelsson, U. E.
Duncan, R. V.
Date Acquired
August 23, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Bulletin of the American Physical Society
Distribution Limits
Public
Copyright
Other

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