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Edge-Localized-Modes (ELMs) are expected to present asignificant transient flux of energy and particles to the ITER divertor. The threshold for ablation of the graphite target will be reached if the ELM transient exceeds Q/t(1/2)~45 MJ m(-2)s(-1/2) where Q is the ELM deposition energy density and the ELM deposition time. The ablation parameter in ITER can be determined by scaling four factors from present experiments: the ELM energy loss from the core plasma, the fraction of ELM energy deposited on the divertor target, the area of the ELM profile onto the target, and finally the time for the ELM deposition.

Additional information

Bibliographic Reference: Article: Journal of Nuclear Materials, 266-269 (1999), 109-117
Record Number: 199910759 / Last updated on: 1999-05-21
Original language: en
Available languages: en
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