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Title: Second-order radio frequency kinetic theory revisited: Resolving inconsistency with conventional fluid theory

The second-order velocity distribution function was calculated from the second-order rf kinetic theory [Jaeger et al., Phys. Plasmas 7, 641 (2000)]. However, the nonresonant ponderomotive force in the radial direction derived from the theory is inconsistent with that from the fluid theory. The inconsistency arises from that the multiple-timescale-separation assumption fails when the second-order Vlasov equation is directly integrated along unperturbed particle orbits. A slowly ramped wave field including an adiabatic turn-on process is applied in the modified kinetic theory in this paper. Since this modification leads only to additional reactive/nonresonant response relevant with the secular resonant response from the previous kinetic theory, the correct nonresonant ponderomotive force can be obtained while all the resonant moments remain unchanged.
Authors:
 [1] ;  [2] ;  [3] ;  [2]
  1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China)
  2. (China)
  3. Department of Engineering Physics, Tsinghua University, Beijing 100084 (China)
Publication Date:
OSTI Identifier:
22227910
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 8; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BOLTZMANN-VLASOV EQUATION; DISTRIBUTION FUNCTIONS; MAGNETOHYDRODYNAMICS; MODIFICATIONS; ORBITS; PLASMA WAVES; PONDEROMOTIVE FORCE; RADIOWAVE RADIATION