I am Dr. Rilwan Usman by name, I completed my B.Sc. in Physics from Nasarawa State University Keffi, Nigeria, an M.Sc. in Radiation and Medical Physics also from Nasarawa State University Keffi, Nigeria, and a Ph.D. in Medical Physics from Abubakar Tafawa Balewa University Bauchi, Nigeria. Currently a lecturer with Department of Physics, Faculty of Natural and Applied Sciences, Nigerian Army University, Biu, Borno State, Nigeria.