Document Type : Original Paper
1 Department Of Physics, Faculty of Sciences, University Mohammed V, Rabat, Morocco.
2 Part Consult Company, Casablanca, Morocco.
3 Department of Physics, Faculty of Sciences, Mohammed 1st University, Oujda, Morocco.
4 Laboratory of biochemistry, Ibn Rochd University, Hospital Center, Casablanca, Morocco
5 Department of Radiotherapy, All India Institute of Medical Sciences, Bhopal, India.