A simple neutral density profile calculation for Tokamaks with λmfp<<a

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Abstract

A simple and expeditious technique is developed for calculating the neutral density profile in the dense region of large Tokamak plasmas, where lambda mfp<<a. The method rests on determining the local logarithmic derivative of n0 from a self-consistent calculation of the radial flux of neutrals Gamma , combined with the condition that div. Gamma +n 0ne( sigma nu )ei=0. The results from this simple technique are compared with a more time-consuming Monte-Carlo calculation, and good agreement is found.

Original languageEnglish (US)
Article number010
Pages (from-to)1199-1203
Number of pages5
JournalPlasma Physics
Volume20
Issue number11
DOIs
StatePublished - Dec 1 1978

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physics and Astronomy(all)

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