Two Regimes of Asymmetry-Induced Transport in Non-neutral Plasmas
2000; American Physical Society; Volume: 85; Issue: 12 Linguagem: Inglês
10.1103/physrevlett.85.2510
ISSN1092-0145
AutoresJason Kriesel, C. F. Driscoll,
Tópico(s)Dust and Plasma Wave Phenomena
ResumoConfinement of charged particles in cylindrical Penning-Malmberg traps depends strongly on cross-magnetic-field transport induced by electric and/or magnetic asymmetries. New measurements in pure-electron plasmas demonstrate two separate transport regimes depending on the particle bounce-to-rotation ratio, or rigidity, R identical with&fmacr;(b)/f(E). For R<10, the transport scales as V(a)R-2, where V(a) is the strength of an applied electrostatic asymmetry. For R greater, similar10-20, this " R-2 transport" ceases abruptly, leaving " B-independent" transport which scales as V(2)(a) and does not depend directly on the rigidity.
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