Dose distribution near thin titanium plate for skull fixation irradiated by a 4-MV photon beam
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چکیده
منابع مشابه
Determining rectal dose through cervix cancer radiotherapy by 9 MV photon beam using TLD and XR type T GAFCHROMIC® Film
Background: The goals of the present research were to investigate the rectal dose during four chosen techniques of cervical cancer radiotherapy and to examine how accurately the treatment planning represents dose measurements, and it’s practicality for routine use as well as, to determine the homogeneity of dose in tumor volume. Materials and Methods: The study was carried out using a Nepton 10...
متن کاملmeasurement of neutron dose component in central axis absorbed dose of 18 mv photon beam by tld600 and tld700 dosimeters
background : in spite of clinically useful photon and electron beams, high energy linacs produce secondary particles such as neutrons (photo-neutron production). neutrons have important roles during treatment with high energy photons in terms of protection and dose escalation. in this project, neutron dose equivalent of 18 mv varian accelerators is calculated by tld600 and tld700. materials and...
متن کاملdetermining rectal dose through cervix cancer radiotherapy by 9 mv photon beam using tld and xr type t gafchromic® film
background: the goals of the present research were to investigate the rectal dose during four chosen techniques of cervical cancer radiotherapy and to examine how accurately the treatment planning represents dose measurements, and it’s practicality for routine use as well as, to determine the homogeneity of dose in tumor volume. materials and methods: the study was carried out using a nepton 10...
متن کاملMonte carlo simulation of varian clinac iX 10 MV photon beam for small field dosimetry
Background: The lack of lateral electronic disequilibrium (LED) becomes a main problem in small field. This factor affects the dose in target volume cannot predict correctly. In addition, utilization of high-energy linear accelerator (10 MV) can emit some unwanted particles (electron contamination). Therefore, the aim of this study was to characterize head linear accelerator (linac) Varian Clin...
متن کاملSU-E-T-235: Monte Carlo Analysis of the Dose Enhancement in the Scalp of Patients Due to Titanium Plate Backscatter During Post-Operative Radiotherapy.
PURPOSE To quantify the clinically observed dose enhancement adjacent to cranial titanium fixation plates during post-operative radiotherapy. METHODS Irradiation of a titanium burr hole cover was simulated using Monte Carlo code MCNPX for a 6 MV photon spectrum to investigate backscatter dose enhancement due to increased production of secondary electrons within the titanium plate. The simulat...
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ژورنال
عنوان ژورنال: Journal of Medical Physics
سال: 2010
ISSN: 0971-6203
DOI: 10.4103/0971-6203.62199