Modeling of heat loads on the JET divertor during edge localized modes

Abstract

We analyse the impact of Edge Localize Mode (ELM) events on the target plates of the JET tokamak. ELMs transfer into the Scrape-off Layer a fraction of the confined plasma energy, producing transient thermal loads on the solid structures of several hundreds of MW/m, which can severely damage the solid plasma facing components. We study numerically an ELM in JET using the SOLPS B2-Eirene code, and compare our results with the available experimental data, with emphasis on the description of the heat loads on the divertor targets. The major current uncertainty sources for computational modelling are also briefly discussed.

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