scholarly journals FLUKA Monte Carlo for Basic Dosimetric Studies of Dual Energy Medical Linear Accelerator

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
K. Abdul Haneefa ◽  
T. Siji Cyriac ◽  
M. M. Musthafa ◽  
R. Ganapathi Raman ◽  
V. T. Hridya ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Linear Accelerator ◽  
Dual Energy ◽  
General Purpose ◽  
Experimental Measurements ◽  
Monte Carlo Code ◽  
Percentage Depth Dose ◽  
Depth Dose ◽  
Medical Linear Accelerator ◽  
Cylindrical Ionization Chamber

General purpose Monte Carlo code for simulation of particle transport is used to study the basic dosimetric parameters like percentage depth dose and dose profiles and compared with the experimental measurements from commercial dual energy medical linear accelerator. Varian Clinac iX medical linear accelerator with dual energy photon beams (6 and 15 MV) is simulated using FLUKA. FLAIR is used to visualize and edit the geometry. Experimental measurements are taken for 100 cm source-to-surface (SSD) in 50 × 50 × 50 cm3 PTW water phantom using 0.12 cc cylindrical ionization chamber. Percentage depth dose for standard square field sizes and dose profiles for various depths are studied in detail. The analysis was carried out using ROOT (a DATA analysis frame work developed at CERN) system. Simulation result shows good agreement in percentage depth dose and beam profiles with the experimental measurements for Varian Clinac iX dual energy medical linear accelerator.

Experimental measurements and Monte Carlo modelling of the XSTRAHL 150 superficial X-ray therapy unit

2014 ◽  
Vol 14 (1) ◽  
pp. 43-55
Author(s):  
Fayez H. H. Al-Ghorabie
Keyword(s):  
Monte Carlo ◽  
Theoretical Calculations ◽  
Beam Quality ◽  
Patient Treatment ◽  
Experimental Measurements ◽  
Monte Carlo Code ◽  
X Ray ◽  
Percentage Depth Dose ◽  
Depth Dose ◽  
Good Agreement

AbstractBackgroundSuperficial X-ray therapy units are used for the treatment of certain types of skin cancer and some severe dermatological conditions. The performance assessment and beam characteristics of the superficial unit are very important to ensure accurate dose delivery during patient treatment. Both experimental measurements and Monte Carlo calculations can be used for this purpose.PurposeThis study aims to investigate whether it is possible to reproduce experimentally measured data for the XSTRAHL 150 superficial X-ray unit with simulations using the BEAMnrc Monte Carlo code.Materials and MethodsThe experimental procedure applied in this study included the following: experimental measurements of different X-ray spectra, half-value layers, percentage depth dose and beam profiles. Monte Carlo modelling of the XSTRAHL 150 unit was performed with the BEAMnrc code. The validity of the model was checked by comparing the theoretical calculations with experimental measurements.ResultsThere was good agreement (∼1%) between experimentally measured and simulated X-ray spectra. Results of half-value layers obtained from simulated and measured spectra showed that there was a maximum of 3·6% difference between BEAMnrc and measurements and a minimum of 2·3%. In addition, simulated percentage depth dose and profile curves have been compared against experimental measurements and show good agreement (within 2% for the depth dose curves and 3–5% for beam profile curves, depending on the applicator size).ConclusionThe results of this study provide information about particles’ interaction in different kilovoltage and filter combinations. This information is useful for X-ray tube design and development of new target/filter combinations to improve beam quality in superficial X-ray radiotherapy. The data presented here may provide a base for comparison and a reference for other or potential new users of the XSTRAHL 150 X-ray unit.

scholarly journals Grid Monte Carlo Simulation of a Medical Linear Accelerator

2018 ◽  
Vol 3 (12) ◽  
pp. 40-43 ◽  
Author(s):  
Didi Samir ◽  
Mustapha Zerfaoui ◽  
Abdelilah Moussa ◽  
Yassine Benkhouya ◽  
Mehdi El Ouartiti
Keyword(s):  
Monte Carlo ◽  
Linear Accelerator ◽  
Field Size ◽  
Dose Profile ◽  
Depth Dose ◽  
Grid Simulation ◽  
Medical Linear Accelerator ◽  
Measured Dose ◽  
Better Than ◽  
Good Agreement

A full grid simulation of the head of an Elekta Synergy Platform medical linear accelerator is performed using the Geant4 Monte Carlo platform. The simulation includes all components of the accelerator head and a homogeneous water phantom. Results in terms of depth doses and lateral dose profiles are presented for 6 MV photon beam with the 10x10 cm2 reference field size at 100 cm distance from the source. Overall, a good agreement with the measured dose data is achieved with a precision better than 0.93% and 2.63% for the depth dose profile and lateral dose profiles respectively.

Computational Modeling and Simulation of Linear Accelerator Performance for General Radiotherapy

2019 ◽  
Vol 23 (2) ◽  
Author(s):  
Andelson Berondo ◽  
◽  
Lilian Rodriguez ◽  
Alwielland Bello ◽  
◽  
...  
Keyword(s):  
Monte Carlo ◽  
Computational Modeling ◽  
Modeling And Simulation ◽  
Linear Accelerator ◽  
Depth Dose ◽  
Computational Modeling And Simulation

linear accelerator, depth-dose, Geant4, Monte Carlo

SU-FF-T-438: Modeling 6 MeV Electron Beam From Medical Linear Accelerator Using Monte Carlo Simulation

2009 ◽  
Vol 36 (6Part15) ◽  
pp. 2623-2623
Author(s):  
P Dechsupa ◽  
C Tannanonta ◽  
N Phaisangittisakul
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Electron Beam ◽  
Linear Accelerator ◽  
Medical Linear Accelerator

scholarly journals Monte Carlo simulations of EBT3 film dose deposition for percentage depth dose (PDD) curve evaluation

2020 ◽  
Vol 21 (12) ◽  
pp. 314-324
Author(s):  
Spencer M. Robinson ◽  
Nolan Esplen ◽  
Derek Wells ◽  
Magdalena Bazalova‐Carter
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Percentage Depth Dose ◽  
Depth Dose ◽  
Dose Deposition
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