%0 Journal Article
%T Dose Validation of Physical Wedged Asymmetric Fields in Artiste Linear Accelerator
%A Tamer Dawod
%A E. M. Abdelrazek
%A Mostafa Elnaggar
%A Rehab Omar
%J International Journal of Medical Physics,Clinical Engineering and Radiation Oncology
%P 201-209
%@ 2168-5444
%D 2014
%I Scientific Research Publishing
%R 10.4236/ijmpcero.2014.34026
%X Aim: The purpose of this study was to make a comparison between measured and calculated physical wedge dose distributions using the superposition algorithm. Settings and Design: The accurate determination of absorbed dose is important radiotherapy because of the relatively steep sigmoidal dose response curves for both tumor control and normal-tissue damage. Materials and Methods: High-energy photons (6 and 10 MV) from Artiste Treatment System Linear Accelerator Machine, available at Alexandria Ayadi Al-Mostakbal Oncology Center, were used. Results and Discussion: The results showed that the difference between measured and calculated wedged isodose curves depends on field size, beam energy, and the angle of the used wedge. Conclusion: The results showed that the presence of a wedge alters the primary and scattered components generated by a linear accelerator and causes beam hardening in 6 and 10 MV. The beam hardening increased as the wedge angle increased.
%K Radiotherapy
%K Wedge
%K Linear Accelerator
%K Computerized Treatment Planning System
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50546