Authors
Salah H.R. Ali
Precision Engineering Division, National Institute for Standards, Giza, Egypt
M.A.H. Khalafalla
Physics Dept., Taibah University, Al Madinah Al Monawarah, Saudi Arabia
Ihab H. Naeim
Precision Engineering Division, National Institute for Standards, Giza, Egypt
Physics Dept., Taibah University, Al Madinah Al Monawarah, Saudi Arabia
Sarwat Z.A. Zahwi
Precision Engineering Division, National Institute for Standards, Giza, Egypt