Particulars of the choice of radiation protection for planetary-surface nuclear power plants

The results of computational studies on choosing radiation protection for planetary-surface nuclear power plants are present. Protection on the base of a 0.4–1.5 MW(t) YaEU-100 thermionic space reactor was considered for a Martian nuclear power plant and a 0.36. and 0.6 MW(t) YaEU-25 reactor was considered for a lunar reactor. The mass/size characteristics of the radiation protection were obtained for different arrangements of the nuclear power plant on the planet — directly on the surface with protection delivered or an embankment consisting of local soil and in a shaft prepared beforehand. Translated from Atomnaya énergiya, Vol. 105, No. 2, pp. 72–79, August, 2008.