Assessment of the radiation dose in a medical linear accelerator using a simulation model and experimental verification / Ahmed Medhat Fahmy Moustafa ; Supervised Hassan Fathy Ibrahim , Ehab Marouf Attalla

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Ahmed Medhat Fahmy Moustafa

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TextLanguage: English Publication details: Cairo : Ahmed Medhat Fahmy Moustafa , 2017Description: 178 P. : charts , facsimiles ; 25cmOther title:

تقييم الجرعة الاشعاعية في الدعجل الخطي الطبي باستخدام نموذج للمحاكاة والتأكد التجريبي [Added title page title]

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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physics Summary: This research aims to investigate the use of the Monte Carlo (MC) simulations (Geant4/GATE) to estimate the radiation doses for different field sizes at the isocenter from a medical linac. A water phantom is irradiated by using a 6 MV photon beam delivered by Siemens ONCOR linac. The percent depth doses and dose profiles at different depths are measured using two types of ionization chamber, then compared with the MC calculated data. The comparisons show satisfactory agreement with gamma index passing rates from 63.15% to 98.87%, therefore, MC simulations can be considered adequate for the assessment of the radiation doses from any medical linac

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Item type	Current library	Home library	Call number	Copy number	Status	Barcode
Thesis	قاعة الرسائل الجامعية - الدور الاول	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.12.20.M.Sc.2017.Ah.A (Browse shelf(Opens below))		Not for loan	01010110075748000
CD - Rom	مخـــزن الرســائل الجـــامعية - البدروم	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.12.20.M.Sc.2017.Ah.A (Browse shelf(Opens below))	75748.CD	Not for loan	01020110075748000

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Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physics

This research aims to investigate the use of the Monte Carlo (MC) simulations (Geant4/GATE) to estimate the radiation doses for different field sizes at the isocenter from a medical linac. A water phantom is irradiated by using a 6 MV photon beam delivered by Siemens ONCOR linac. The percent depth doses and dose profiles at different depths are measured using two types of ionization chamber, then compared with the MC calculated data. The comparisons show satisfactory agreement with gamma index passing rates from 63.15% to 98.87%, therefore, MC simulations can be considered adequate for the assessment of the radiation doses from any medical linac

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