Theory of Magnetically Induced Rotation and a Dynamo Effect in Laser Plasmas
Reports of spontaneously generated magnetic fields in laser-created plasmas are briefly reviewed and theoretical explanations mentioned. Observations which indicate that a dynamo effect might be operative are pointed out. Standard plasma equations are proved to imply an Einstein-de Haas effect, i.e. magnetically induced mass rotation, and a Barnett effect, i.e. a dynamo mechanism. The experimental support for these two effects is discussed. A theorem concerning rotation of theta-pinches and denying the effects is shown to be based on a too simplified continuum plasma description. Indications are presented that the dynamo magnetic field may have plasma confining properties.
KeywordsJETP Letter Field Generation Laser Plasma Plasma Expansion Hall Parameter
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- 2.J.A. Stamper, S.D. Dean, and E.A. McLean: Proc. Second Laser Interaction Workshop, p. 273, Plenum Press (1972).Google Scholar
- 3.F. Schwirzke and L.L. McKee: Proc. Fifth European Conf. on Controlled Fusion, p. 63, C.E.A., Grenoble(1972).Google Scholar
- 7.S. Glasstone: “The Effects of Nuclear Weapons”, Chapter X, Revised Edition, USAEC, Washington D.C., 1962.Google Scholar
- 8.L.F. Wouters, report UCRL-72149, contained in Proc. AFSWC Symp., Albuquerque, New Mexico, March 12–13, 1970.Google Scholar
- 9.E. Teller: IEEE Spectrum, p. 60, January 1973.Google Scholar
- 22.D.K. Bhadra, Proc. Second Laser Interaction Workshop, p. 298, Plenum Press (1972).Google Scholar
- 25.P. Penfield, Jr. and H.A. Haus: “Electrodynamics of Moving Media”, pp. 10, 81, The M.I.T. Press, Cambridge, Mass. (1967).Google Scholar
- 31.O. Schönherr: Elektrotechn. Z. 30, 365 (1909).Google Scholar