Monte Carlo simulation of Novalis Classic 6 MV accelerator using phase space generation in GATE/Geant4 code

Teixeira, Mônica; Batista, Delano V. S.; Braz, Delson; Rosa, L.A.R. da

doi:10.1016/j.pnucene.2018.09.004

Cited by 16 publications

(5 citation statements)

References 13 publications

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“…To adequately validate the photon beam’s quality taken by the simulation GATE against the accurate measured data and according to international recommendations (IAEA TRS398) [ 15 , 16 ], the index of quality tissue phantom ratio (TPR) in water for the square field 10 × 10 cm 2 the D 10 (%) , d max (cm) and d 80 (cm) are reported and compared as shown in Table 2 .…”

Section: Resultsmentioning

confidence: 99%

Monte Carlo evaluation of particle interactions within the patient-dependent part of Elekta 6 MV photon beam applying IAEA phase space data

Krim

Bakari

Zerfaoui

et al. 2021

Rep Pract Oncol Radiother.

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Section: Resultsmentioning

confidence: 99%

Monte Carlo evaluation of particle interactions within the patient-dependent part of Elekta 6 MV photon beam applying IAEA phase space data

Krim

Bakari

Zerfaoui

et al. 2021

Rep Pract Oncol Radiother.

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“…Teixeira et al [38] created the phase space of the Novalis Classic linear accelerator at 6 MV energy performed the GATE simulation program and compared PDD and dose profiles with experimental data for 10 × 10 cm 2 and 3 × 3 cm 2 radiation field. They found that the TPR 20/10 difference between simulation and measurement was about 1.5% for 6 MV.…”

Section: Resultsmentioning

confidence: 99%

The Effect of the Trace Elements Concentrations on the Cancerous and Healthy Tissues in Radiotherapy

Şahmaran¹,

Kaşkaş²

2020

IJMPCERO

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The study is aimed to investigate the effect of the trace element concentrations in healthy and cancerous prostate tissues on dose distributions in radiotherapy. In this work, the trace element compounds completely soluble in the water were used and their concentrations given in the literature were mixed homogeneously with pure water. This is the first time study in literature as far as we know. The percent depth dose (PDD) measurements were performed using Elekta Synergy Platform Linac device for 6 and 18 MV photon energies. We also obtained the PDDs results by choosing higher trace element concentrations than given in literature in cancerous prostate tissue to see the effect on radiotherapy. The experimental measurements were compared with the results obtained from the GATE simulation code. The TPR 20/10 was calculated for 10 × 10 cm 2 field size at 6/18 MV energies photons and compared with simulation results. The differences between simulation and measurement for 6 MV and 18 MV photons are 1.75% and 1.82% respectively. The experimental results and simulations were presented an uncertainty lower than 3%. Simulated dose values are in good agreement with less than 2% differences with the experimental results. We see that the trace element concentrations of healthy and cancerous tissues did not affect the dose distribution at high-energy photons. This is expected and well known result. We believe that this in vitro study is important for proving the reliability of the dose given in radiotherapy treatment once again.

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“…The brute-force search method (reference) was used to select the diameters and thicknesses of these plates. In order to determine the optimal average beam energy, depth dose distributions were calculated in a region of the nominal energy with 0.1 MeV step (the typical standard deviation equals 3%, according to the previously published data [10]). The best agreement between the simulated data and the experimental data for the dose maximum depth (D 100 ) and the half-value depth (D 50 ) was considered to be the criterion for selecting the optimal value of the average beam energy for further simulations.…”

Section: Parameter Nominal Electron Beam Energy 6 Mev 12 Mev 15 Mevmentioning

confidence: 99%

Development and verification of a Geant4 model of the electron beam mode in a clinical linear accelerator

Miloichikova,

Bulavskaya,

Bushmina

et al. 2024

J. Inst.

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At present, a significant number of studies are focused on the development of novel methodologies for the fabrication of dosimetry phantoms. One of these methods is to produce heterogeneous samples by 3D printing. In order to select the most appropriate parameters for such products, it is necessary to conduct numerical simulations. In this work, we developed the model of a beam-forming system using a medical linear accelerator as a reference. This model was used to determine simulation parameters and corresponding dose distributions of an electron beam with nominal energies of 6, 12, and 15 MeV in a homogeneous water phantom. These parameters were, in fact, adapted to provide maximum agreement between simulated distributions and those experimentally obtained with the clinical linear accelerator. The beam simulation was performed using the Geant4 Monte Carlo toolkit. The simulation geometry of the accelerator treatment head includes scattering foil and a flattening filter, which are designed for electron beam broadening. Additionally, the beam-forming system was incorporated to collimate the beam to the required size. A metal applicator was included to reduce the contribution of electron scattering in air. The main simulation parameters were iteratively tuned by comparing simulation results with experimentally obtained data. It is shown that the simulated percentage depth dose and transverse profiles for electron beams in water phantom are in good agreement with the experimental data obtained with a cylindrical ionization chamber. This demonstrates that the methodology employed in the development of the numerical model of the medical linear accelerator is vendor-independent, readily implementable, and allows for rapid calculations. Furthermore, the model can be applied for a variety of purposes, including the selection of parameters for the fabrication of heterogeneous dosimetry phantoms.

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Monte Carlo simulation of Novalis Classic 6 MV accelerator using phase space generation in GATE/Geant4 code

Cited by 16 publications

References 13 publications

Monte Carlo evaluation of particle interactions within the patient-dependent part of Elekta 6 MV photon beam applying IAEA phase space data

Monte Carlo evaluation of particle interactions within the patient-dependent part of Elekta 6 MV photon beam applying IAEA phase space data

The Effect of the Trace Elements Concentrations on the Cancerous and Healthy Tissues in Radiotherapy

Development and verification of a Geant4 model of the electron beam mode in a clinical linear accelerator

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Monte Carlo simulation of Novalis Classic 6 MV accelerator using phase space generation in GATE/Geant4 code

Cited by 16 publications

References 13 publications

Monte Carlo evaluation of particle interactions within the patient-dependent part of Elekta 6 MV photon beam applying IAEA phase space data

Monte Carlo evaluation of particle interactions within the patient-dependent part of Elekta 6 MV photon beam applying IAEA phase space data

The Effect of the Trace Elements Concentrations on the Cancerous and Healthy Tissues in Radiotherapy

Development and verification of a Geant4 model of the electron beam mode in a clinical linear accelerator

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Monte Carlo simulation of Novalis Classic 6 MV accelerator using phase space generation in GATE/Geant4 code