Pulse Shape Dependence of Vapor Shielding Efficiencies During Transient Heat Loads

Abstract

Erosion of first walls in tokamak fusion reactors due to transient heat loads during ELM and disruptions is a major concern and needs to be predicted. Studies have shown that the erosion amount is strongly dependent on the total energy density and duration of a transient heat pulse. Recently, it was pointed out that the erosion amount is also dependent on the pulse shape [