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Abstract

A visible endoscope system and an infrared camera system have been used to study the flux of carbon from an inertially-cooled graphite limited in Tore Supra. From the variation in the carbon flux with plasma parameters, new data have been obtained, describing the dependence of radiation enhanced sublimation (RES) and chemical sputtering on incident ion flux. Other characteristics of RES under plasma operation conditions have also been studied. The dependence of RES on incident deuterium particle flux density is found to be in reasonable agreement with the expected particle flux scaling over a range of particle fluxes varying by a factor of approximately 25, extending the present scaling to higher flux density values.

Additional information

Authors: TOBIN S J, Fusion Energy Division, Oak Ridge National Laboratory (US);HOGAN J T, Fusion Energy Division, Oak Ridge National Laboratory (US);KLEPPER C C, Fusion Energy Division, Oak Ridge National Laboratory (US);DEMICHELIS C, CEA, CEN Cadarache, Saint-Paul-lez-Durance (FR);MONIER-GARBET P, CEA, CEN Cadarache, Saint-Paul-lez-Durance (FR);GUILHEM D, CEA, CEN Cadarache, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: Article: Plasma Physics and Controlled Fusion Vol. 40 (1998) pp. 1335-1348
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