Analytic study of radiation shielding using proton beams in a fusion reactor and a spherical isotropic power reactor (SIPR)

The radiation shielding of the spherical geometry is analyzed. The proposed power plant, spherical isotropic power reactor (SIPR), is compared with the nuclear fusion reactor, ARIES-ST. Two cases focus on the economic matter by reducing the thickness in reactor vessel. The reactor vessel is examined for the thickness in the radiation shielding, which can be calculated by the Monte-Carlo simulation code system stopping and range of ions in matter-2010 (SRIM-2010), using proton beams. The nano-scale behavior of the nuclear fuel molecule is analyzed using SRIM-2010 computer package. The radius in cylindrical core is varied from 2.190 m to 6.675 m. It is 3.638 m in the spherical core. The results show highly enhanced shielding operations. It is proposed to reduce the thickness of the reactor core vessel.

► Using fission and fusion reactors, a new reactor type is analyzed for application as an isotropic power production reactor.
► This study suggests economic improvement by reducing the vessel thickness by changing the geometric design.
► The economic aspect could be improved using the reactor vessel thickness.
► This SIPR gives a better safety system by preventing the power peaking.
► New kind of reactor analysis method is introduced.