A simple method for determination of electron density profiles in the plasma boundary layer

G. Veres, P. N. Ignácz, B. Kardon, G. Kocsis, J. S. Bakos

Research output: Contribution to journalArticle

3 Citations (Scopus)


A novel method based on the injection of sodium atoms by the laser blow-off technique is proposed to determine the electron density profile in the plasma boundary at a given moment of the injection. For this purpose the radial and temporal distributions of the light intensity of line radiation of the injected neutrals have been measured. A simple model is presented to simulate the penetration of injected atoms into the edge plasma of the MT-IM tokamak. The model calculates the light intensity of line radiation of the neutrals. The calculated and measured radial profiles of the light intensity are compared at a given moment and an iterative process is given to obtain the electron density profile.

Original languageEnglish
Pages (from-to)221-223
Number of pages3
JournalNuclear Inst. and Methods in Physics Research, B
Issue number2
Publication statusPublished - Aug 2 1992


ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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