An Experimental Test of Vinen’s Dimensional Theory of Turbulent He II

  • D. M. Sitton
  • F. E. Moss


In a previous work,1 using submerged thermionic filaments, we measured the escape probability P of negative ions trapped on vorticity in turbulent He II and demonstrated that the vorticity is identical to that in rotating helium except for spatial configuration of the lines. Above 1.75°K the results are in agreement with observations on rotating superfluid and with Donnelly’s escape theory.2 Below this temperature anomalously large values of P were measured. In order to further investigate this effect and to observe the pressure dependence of P, we have studied the space-charge-limited diode current from an 8-Ci tritium ion source.3


Vortex Ring Vortex Line Escape Probability Diode Current Vortex Line Density 
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  2. and in Proc. 12th Intern. Conf. Low Temp. Phys, 1970, Academic Press of Japan, Tokyo (1971), p. 109Google Scholar
  3. 2.
    P. M. Roberts and R. J. Donnelly, Proc. Roy. Soc A312 519 (1969), and references therein.Google Scholar
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    D. M. Sitton and F. Moss, Phys. Rev. Lett. 29, 542 (1972).ADSCrossRefGoogle Scholar
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    W. F. Vinen, Proc. Roy. Soc. (London) 243, 400 (1958), and references therein;ADSCrossRefGoogle Scholar
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    G. W. Rayfield and F. Reif, Phys. Rev. A136, 1194 (1964).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • D. M. Sitton
    • 1
  • F. E. Moss
    • 2
  1. 1.Department of Aerospace Engineering and Engineering PhysicsUniversity of VirginiaCharlottesvilleUSA
  2. 2.Department of PhysicsUniversity of Missouri—St. LouisSt. LouisUSA

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