Development of coupled nuclear-thermal calculation code system

In order to obtain accurate temperature distributions caused by nuclear heating in components of fusion reactors, a coupled nuclear-thermal calculation code system was developed. This code system can treat not only steady state nuclear heating problems but also non-steady problems such as decay heat problems in two-dimensional geometry. The calculated results are given in graphical forms. With use of this code system, the accurate and efficient evaluation of two-dimensional temperature distribution caused by nuclear heating has become possible. (author)