1. Faculty of Sciences of Structure of Matter and Technology, Laboratory of Nuclear Physic and Radiation Protection, University Felix Houphouet-Boigny of Cocody, 22 BP 582 Abidjan 22, Abidjan, Côte d'Ivoire
2. Faculty of Sciences of Structure of Matter and Technology, Laboratory of Molecular Physic and Crystallography, University Felix Houphouet-Boigny of Cocody, 22 BP 582 Abidjan 22, Abidjan, Côte d'Ivoire