About the Authors

Laith Ahmed Najam

Department of Physics, College of Science, University of Mosul, Mosul, Iraq

Mahmood Salim Karim

Department of Physics, College of Education, Al-Mustansiriyah University, Baghdad, Iraq

Taghreed Khalid Hameed

Department of Physics, College of Education, Al-Mustansiriyah University, Baghdad, Iraq

Corresponding Author

Email: prof.lai2014@gmail.com