On a possibility of explosive material erosion under conditions of ITER disruption event

On the basis of the modeling experiments of hot plasma influence on the graphite and tungsten materials performed on the GOL-3 device, an analysis was made of a possibility for explosive erosion to occur under ITER disruption conditions. In this analysis, the threshold value for explosive erosion obtained in the GOL-3 experiments was taken into account. Then the volumetric energy release was calculated for a hot plasma (T=1-20 keV) reaching the target at the limit of irradiating flux close to the conditions of ITER disruption (an energy flux of up to 140 MJ/m(2)). It is shown that under such conditions, erosion can reach values much higher than those in the case of erosion under the effect of a plasma with lower temperature but with the same energy density.