رضائی, لادن
دانشگاه آزاد اسلامی شیراز
[ 1 ] - محاسبات دزیمتری و مقایسه توزیع دز در اطراف دو مدل چشمه ید 125 در براکی تراپی
Brachytherapy is a therapeutic approach in which radioactive sources are used to irradiate malignant tumors from near distance. In this study, the comparison of dose distribution in iodine-125 source, STM 1251 and Oncoseed 6711 models was performed using the Monte Carlo Geant4 code. The results obtained from the Monte Carlo calculations have been compared with the TG43U1 formulation and also wi...
[ 2 ] - بررسی پاسخ رده های سلولی مختلف به میدان تابشی آمیخته حاصل از پرتودهی با یون هلیوم
Introdution: A careful study of the physical and biological properties of helium ion radiation on the various cell lines is essential for the treatment planning. In this study, the biological response of several different cell lines has been investigated in 4He ions. Methods: Physical dose profiles and Linear Energy Transfer (LET) calculations were performed using the Monte Carlo Geant4 code. ...
[ 3 ] - Evaluation of variable relative biological effectiveness and the creation of homogenous biological dose in the tumor region in helium ion radiation to the V79 cell line
In radiation therapy, ions heavier than proton have more biological advantages than a proton beam. Recently, ion helium has been considered due to high linear energy transfer (LET) to the medium and a higher relative biological effect (RBE). To design the spread-out Bragg peak (SOBP) of biological dose for radiation with any type of ion, we need exact values of RBE, which is dependent to dose, ...
[ 4 ] - Study of Radiation Dose Enhancement to Capillary Endothelial Cells Due to the Presence of Heavy Metal Nanoparticles in Two Cell and Tumor Scales by Monte Carlo Method
Introduction: Recently, the use of various sensitizers has been used to increase photon-induced doses in brachytherapy. One of these cases is the addition of heavy metal nanoparticles such as gold in the target area, which increases the production of ionizing electrons by increasing the possibility of photoelectric effects, and increases the efficacy of the treatment. In this study, the target ...
[ 5 ] - The response of Geant4 hadronic models to the study of neutrons produced in proton irradiation to the light materials
Neutron is one of the products of the interaction of high energy protons with light nuclei. Using computational Monte Carlo codes, it is possible to calculate and predict the neutron spectrum, neutron flux, and doses by simulating the system. But the use of different hadronic models in this process can influence the results of these calculations. In this research, the response of the four hadro...
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