1. Metal Physics Laboratory, Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt
2. Department of Radiological Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
3. Bioimaging Unit, Space Research Centre, Department of Physics and Astronomy, University of Leicester, Leicester, UK
4. Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt