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Investigation of collisional and electric field effects on the He I dielectronic recombination rates for magnetic fusion plasmas

  • E. H. Guedda
  • , F. B. Rosmej
  • , M. Koubiti
  • , R. Stamm
  • , V. S. Lisitsa
  • Aix Marseille Université
  • ISET
  • Russian Research Center
  • Kurchatov Institute

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We present numerical calculations for the He I dielectronic recombination rate coefficients which take into account dense plasma effects. Collisional redistribution of the population between the autoionizing levels as well as level depression due to electric fields seriously alter the He I total dielectronic recombination rate. Atomic kinetic population simulations carried out with the SOPHIA code demonstrate that these high density effects influence largely on the ionic/atomic fraction and therefore on all diagnostic interpretations which employ atomic population densities like, e.g., line intensities.

Original languageEnglish
Title of host publication33rd EPS Conference on Plasma Physics 2006, EPS 2006 - Europhysics Conference Abstracts
Pages1812-1815
Number of pages4
Publication statusPublished - 1 Dec 2006
Externally publishedYes
Event33rd European Physical Society Conference on Plasma Physics 2006, EPS 2006 - Rome, Italy
Duration: 19 Jun 2006 → 23 Jun 2006

Publication series

Name33rd EPS Conference on Plasma Physics 2006, EPS 2006
Volume3

Conference

Conference33rd European Physical Society Conference on Plasma Physics 2006, EPS 2006
Country/TerritoryItaly
CityRome
Period19/06/06 → 23/06/06

Keywords

  • Dense plasma effects
  • Diagnostics
  • Dielectronic recombination
  • Magnetic fusion plasmas

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