1. Military Technical College,dept. of Communications Engineering,Cairo,Egypt
2. The National Center for Radiation Research,dept. of Radiation Engineering,Cairo,Egypt
3. Aswan University,Faculty of Engineering,dept. of Electrical Engineering,Aswan,Egypt
4. Future University in Egypt,Faculty of Engineering and Technology,dept. of Electrical Engineering,Cairo,Egypt
5. Egyptian Atomic Energy Authority (EAEA),Nuclear Research Center,Inshas,Egypt,13759