[3A05-09] Reactor Components and Risk Assessment

[3A05] Effect of target cooling for long time heat flux monitoring

*Hiroto Matsuura¹, Son Xuan Nhat Bui² (1. Osaka Metropolitan University, 2. Osaka Prefecture University)

Keywords:divertor tile heat flux, heat conduction, heat loss time constant

Nowadays, many fusion experiment has shorter discharge time than about 1 s, although in the future, fusion reactor will have longer time than 1 hour, and active cooling of plasma facing components must be equipped. However, heat flux study with this cooling effect treated correctly has been limited. This induces uncertainty of estimating the effect of pulse heat load such as ELM. In this work, these problem will be discussed with basic model calculation.