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UBC Theses and Dissertations

The shift of the lambda point by a heat current Robinson, Brad J.


The velocity of second sound, with and without a heat flux present, has been measured using a time of flight technique. The velocity changes resulting from the presence of the heat flux are interpreted as changes in the temperature of the He II - He I transition. The null results indicate that the depression of the transition temperature, ðT[sub A], by a heat flux Q is [equations].

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