The optical model potential has an aspect of useful tool to analyze the nuclear reaction data of the non-elastic scattering. Therefore, the construction of the optical model potential is developed. Nowadays, the microscopic description based on the realistic nucleon-nucleon interaction is advanced to construct the optical model potential. The microscopic optical potential is success to describe not only the elastic scattering but also inelastic scattering and transfer reaction and so on.
In this talk, we will introduce the microscopic global optical potential for the nucleon-nucleus systems. The microscopic global optical potential is based on the single-folding model with the complex G-matrix interaction. The microscopic global optical potential is designed for the nucleon-nucleus systems including the unstable nucleus at E = 50-400 MeV.