scholarly journals The simulation of a linear accelerator using Monte Carlo method with EGSnrc Program

2019 ◽  
Vol 2 (4) ◽  
pp. 103-111
Author(s):  
Tai Thanh Duong ◽  
Tuan Duc Hoang ◽  
Oanh Thi Luong ◽  
Loan Thi Hong Truong ◽  
Son Dong Nguyen
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Excellent Agreement ◽  
Linear Accelerator ◽  
Evaluation Method ◽  
Dose Calculation ◽  
Calculation Algorithm ◽  
Simulation Accuracy ◽  
Depth Dose ◽  
Passing Rate

The Monte Carlo method is considered to be the most accurate algorithm for dose calculation in radiotherapy. Linear accelerator accurate simulation is required as a prior condition for Monte Carlo dose calculation algorithm. In this study, the 6 MV photon beams from a Siemens Primus Linear Accelerator (LINAC) M5497 at the Dong Nai General Hospital was modelled by using EGSnrc. The BEAMnrc và DOSXYZnrc user code were used for simulation the head of LINAC and the dose distribution in water phantom. The percentage depth dose (PDD) and beam profiles (OCR) were calculated and then compared with the measured ones in order to evaluate the simulation accuracy. Excellent agreement was found between simulations and measurements with an average difference of 1.26 % for PDD, less than 2 % for OCR. In addition, the gamma evaluation method for simulation was also performed using an in-house Matlab code. The percentage gamma passing rate was 100% for PDD and 98.5 % for OCR with 3 % dose difference and 3 mm distance to agreement as acceptance criteria. The result showed that we had successfully simulated LINAC with excellent agreement.

SU-E-T-203: Comparison of a Commercial MRI-Linear Accelerator Based Monte Carlo Dose Calculation Algorithm and Geant4

2015 ◽  
Vol 42 (6Part15) ◽  
pp. 3378-3379 ◽  
Author(s):  
S Ahmad ◽  
A Sarfehnia ◽  
M Paudel ◽  
A Sahgal ◽  
S Hissoiny ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Linear Accelerator ◽  
Dose Calculation ◽  
Calculation Algorithm ◽  
Dose Calculation Algorithm ◽  
Monte Carlo Dose Calculation

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

Experimental verification of dose calculation using the simplified Monte Carlo method with an improved initial beam model for a beam-wobbling system

2013 ◽  
Vol 58 (17) ◽  
pp. 6047-6064 ◽  
Author(s):  
Ryohei Tansho ◽  
Yoshihisa Takada ◽  
Ryosuke Kohno ◽  
Kenji Hotta ◽  
Yousuke Hara ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Experimental Verification ◽  
Dose Calculation ◽  
Beam Model ◽  
Initial Beam

Monte Carlo method for the reduction of measurement errors in the material parameter estimation with cavities

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ronny Peter ◽  
Luca Bifano ◽  
Gerhard Fischerauer
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Measurement Errors ◽  
Input Data ◽  
Material Parameter ◽  
Cavity Resonator ◽  
Calculation Algorithm ◽  
The Monte Carlo Method ◽  
Electromagnetic Resonances

Abstract The quantitative determination of material parameter distributions in resonant cavities is a relatively new method for the real-time monitoring of chemical processes. For this purpose, electromagnetic resonances of the cavity resonator are used as input data for the reverse calculation (inversion). However, the reverse calculation algorithm is sensitive to disturbances of the input data, which produces measurement errors and tends to diverge, which leads to no measurement result at all. In this work a correction algorithm based on the Monte Carlo method is presented which ensures a convergent behavior of the reverse calculation algorithm.

Evaluation of a commercial MRI Linac based Monte Carlo dose calculation algorithm with geant 4

2016 ◽  
Vol 43 (2) ◽  
pp. 894-907 ◽  
Author(s):  
Syed Bilal Ahmad ◽  
Arman Sarfehnia ◽  
Moti Raj Paudel ◽  
Anthony Kim ◽  
Sami Hissoiny ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Dose Calculation ◽  
Calculation Algorithm ◽  
Dose Calculation Algorithm ◽  
Monte Carlo Dose Calculation
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