1. Radiation Protection Institute, Ghana Atomic Energy Commission, P. O. Box LG 80, Legon, Accra, Ghana
2. Radiological and Medical Sciences Research Institute, Ghana Atomic Energy Commission, P.O. Box LG 80, Legon, Accra, Ghana
3. Department of Physics, Kwame Nkrumah University of Science and Technology, PMB, Kumasi, Ghana
4. Biomedical Engineering Department, All Nations University College, PMB, Koforidua, Ghana