نتایج جستجو برای: dosimetric characteristics monte carlo simulation

تعداد نتایج: 1231401  

Journal: :iranian journal of medical physics 0
sanaz hariri tabrizi ph.d. student of radiation medicine engineering, , shahid beheshti university, tehran, iran alireza kamali asl assistant professor,radiation medicine engineering., shahid beheshti university, tehran, iran zohreh azma ph.d. student of radiation medicine engineering, , shahid beheshti university, tehran, iran

introduction: brachytherapy is one of the most common treatment modalities for gynecological cancer. the gzp6 brachytherapy system is one of the devices utilized in iran. it has been considered particularly due to its low cost compared to other more complete and established systems. this system has some deficiencies including lack of a treatment planning software for non-predefined treatments, ...

S.M.T Fatemi Ghomi S.S Hashemin

This paper proposes a hybrid method to find cumulative distribution function (CDF) of completion time of GERT-type networks (GTN) which have no loop and have only exclusive-or nodes. Proposed method is cre-ated by combining an analytical transformation with Gaussian quadrature formula. Also the combined crude Monte Carlo simulation and combined conditional Monte Carlo simulation are developed a...

Journal: :Journal of Computational Physics 2008

Journal: :IEICE Communications Society Magazine 2008

ژورنال: سلامت و محیط زیست 2016
حاجی میر محمد علی, راضیه سادات, کاریاب, حمید,

Background and Objective: The concentration of nitrate, factors affecting the balance sheet, and the changes in an aquifer is of utmost importance. Because modeling is an efficient method to predict the concentration of ions in water resources, in this study using lumped-parameter model and Monte Carlo simulation model, the nitrate concentrations in groundwater resources of Qazvin Plain were es...

2015
Maria-Ana POPOVICI Romeo IONICA Gheorghe CATA-DANIL Maria-Ana Popovici Romeo Ionica Gheorghe Cata-Danil

This paper is a continuation of the preliminary dosimetric evaluation of source terms at PW laser systems [1] the proton case. The main acceleration mechanisms and the associated characteristics of the accelerated proton beams were briefly presented. FLUKA and GEANT4 Monte Carlo transport codes were used to compute absorbed doses due to three proton beams of well defined energy and spatial dist...

تدین رودی, پویا , شریعتی‌نسب, رضا ,

This paper presents a new method, based on analytical relations and Monte Carlo simulation for calculating the lightning performance of overhead lines caused by direct strokes. The aim of the work is to reduce the computing time together with retaining enough accuracy to estimate the line lightning performance and performing the risk analysis of power networks. In the proposed method, some modi...

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