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  • On the possibility of measuring peripheral electron density and temperature profiles in Tore Supra using a laser blow-off lithium and fluorine atomic beam

Abstract

A laser blow-off atomic beam has been used on the Tore Supra (TS) tokamak in an attempt to measure the electron density, n(e), and temperature, T(e), profiles in the plasma periphery. Although the diagnostic set-up is far from ideal, the n(e) profiles (from lithium injection) agree with those measured by the other diagnostics. TS being an all-carbon tokamak, we have attempted to measure T(e) by injecting fluorine. The resulting T(e) profiles are systematically higher (by a factor of 2) than those measured by a reciprocating Langmuir probe, presumably because of the poor knowledge of the relevant fluorine atomic rates.

Additional information

Authors: LEDYANKIN A I, CEA, CEN Cadarache, Saint-Paul-lez-Durance (FR);DE MICHELIS C, CEA, CEN Cadarache, Saint-Paul-lez-Durance (FR);GUIRLET R, CEA, CEN Cadarache, Saint-Paul-lez-Durance (FR);HECQ W, CEA, CEN Cadarache, Saint-Paul-lez-Durance (FR);HESS W R, CEA, CEN Cadarache, Saint-Paul-lez-Durance (FR);MONIER-GARBET P, CEA, CEN Cadarache, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: Article: Physics Letters A, Vol. 230 (1997) pp. 209-217
Record Number: 199711255 / Last updated on: 1997-10-10
Category: PUBLICATION
Original language: en
Available languages: en