I work as Professor of Radiation Physics and Head of Department of Physics and Chemistry in Faculty of Education, Alexandria University (2007 until now) - I worked in Umm Al-qurra University from 1991- 2000 in Faculty of Applied Sciences , Physics Department -I worked for kku from 2003-2011,Faculty of Girls- I worked Bisha University from 2011-2016 ,Faculty of Girls- I worked for kku , Faculty of applied sciences , Department of radiation sciences.