Bootstrap current and transport fluxes associated with bounce-transit and drift resonance in tokamaks

K. C. Shaing, M. S. Chu, S. A. Sabbagh

Research output: Contribution to journalArticlepeer-review

Abstract

Bootstrap current and transport fluxes associated with bounce-transit and drift resonance in tokamak plasmas that have error fields or magnetohydrodynamic activity are calculated by solving the parallel and the toroidal components of the momentum and the heat flux balance equation. Because error fields are not localized around the surfaces where the safety factor q is a rational number, the bootstrap current densities induced by error fields on either side of the rational surface do not cancel. Thus, there is a net contribution to the equilibrium bootstrap current. This may offer a possibility to control bootstrap current density using error fields. Other transport fluxes, such as parallel mass flow, radial electric field, particle and heat flux, are also presented. The complete flow vector calculated can be compared with the experimental measurements.

Original languageEnglish
Article number025005
JournalPlasma Physics and Controlled Fusion
Volume52
Issue number2
DOIs
Publication statusPublished - 2010 Jan 29

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Nuclear Energy and Engineering

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