Helium II film transfer rates for solid-argon beakers

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Helium II film transfer rates were measured for filling and for emptying beakers of solid argon. Liquid argon was frozen slowly in a mold which was later removed, leaving free-standing, transparent solid-argon beakers. The beakers used were of 3 mm ID, 5 mm OD, and 3.5 cm in height. Experiments were carried out in the temperature range 1.45 to 2.0 K. The dependence of the transfer rate 0 (cm/sup 3//sec-cm of circumference) on the difference between the inner and outer helium levels Z, height of the beaker lip above the level of the liquid source H, and temperature, were studied. ... continued below

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Pages: 66

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Milbrodt, T.O. January 1, 1973.

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Description

Helium II film transfer rates were measured for filling and for emptying beakers of solid argon. Liquid argon was frozen slowly in a mold which was later removed, leaving free-standing, transparent solid-argon beakers. The beakers used were of 3 mm ID, 5 mm OD, and 3.5 cm in height. Experiments were carried out in the temperature range 1.45 to 2.0 K. The dependence of the transfer rate 0 (cm/sup 3//sec-cm of circumference) on the difference between the inner and outer helium levels Z, height of the beaker lip above the level of the liquid source H, and temperature, were studied. The transfer rates were lower than those observed with glass beakers, in agreement with theory. For beaker fillings with a level difference of l mm and at a temperature of 1.66 K, the measured transfer rates may be described by the relation sigma = 4.8 H/sup -0.21 x l0/sup -5/ cm/sup 2// sec, where H is in cm. (auth)

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Pages: 66

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Dep. NTIS

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  • Other Information: Thesis. Orig. Receipt Date: 30-JUN-74

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  • Report No.: COO--1574-33
  • Grant Number: None
  • DOI: 10.2172/4332597 | External Link
  • Office of Scientific & Technical Information Report Number: 4332597
  • Archival Resource Key: ark:/67531/metadc1017483

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1973

Added to The UNT Digital Library

  • Oct. 15, 2017, 10:09 p.m.

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Milbrodt, T.O. Helium II film transfer rates for solid-argon beakers, thesis or dissertation, January 1, 1973; United States. (digital.library.unt.edu/ark:/67531/metadc1017483/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.