Eman Amin Abdelzaher <br/><br/>
Electron contamination scatter factor from different megavoltage therapy machines /  
 معامل تشتت التلوث الإلكتروني في أجهزة العلاج الإشعاعي ذات الطاقة العالية 
Eman Amin Abdelzaher ; Supervised Nader Elsherbini , Wael M. Elshemey 
 - Cairo :   Eman Amin Abdelzaher ,   2009 
 - 93 Leaves :   charts ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Biophysics 
<br/><br/> Electron contamination can be defined as the undesirable electrons which accompany high energy photon beam during radiotherapy. It arises from the interaction between incident photon beam and the metallic constitunents of gantry head (such as flattening filter and collimator jaws) and the air volume separating between the treatment head and the point of mcasurement 
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<br/><br/><label>Subjects--Index Terms: </label>Electron contamination Miniphantom Skin sparing advantage