Abstract
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
Supported in part by the Office of Naval Research.
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References
D. M. Sitton and F. Moss, Phys. Rev. Lett. 23, 1090 (1969).
and in Proc. 12th Intern. Conf. Low Temp. Phys, 1970, Academic Press of Japan, Tokyo (1971), p. 109
P. M. Roberts and R. J. Donnelly, Proc. Roy. Soc A312 519 (1969), and references therein.
D. M. Sitton and F. Moss, Phys. Rev. Lett. 29, 542 (1972).
W. F. Vinen, Proc. Roy. Soc. (London) 243, 400 (1958), and references therein;
H. E. Hall, Advan. Phys. 9, 89 (1960).
G. W. Rayfield and F. Reif, Phys. Rev. A136, 1194 (1964).
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© 1974 Springer Science+Business Media New York
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Sitton, D.M., Moss, F.E. (1974). An Experimental Test of Vinen’s Dimensional Theory of Turbulent He II. In: Timmerhaus, K.D., O’Sullivan, W.J., Hammel, E.F. (eds) Low Temperature Physics-LT 13. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-7864-8_92
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DOI: https://doi.org/10.1007/978-1-4684-7864-8_92
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