Comparison between EGSnrc and MCNPX for X-ray target in 6 MV photon beam

Yani, Sitti; Tursinah, Rasito; Rhani, Mohamad Fahdillah; Haryanto, Freddy; Arif, Imran

doi:10.1088/1742-6596/1127/1/012014

Cited by 5 publications

(6 citation statements)

References 8 publications

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“…Because of the low kV energy (50 kV) used in this study, the relative depth-dose values shown in Figure 3 drop rapidly for both MCNP4c and EGSnrc/ Epp MC codes. The statistical uncertainties [11]. In another study, EGSnrc/ Epp MC codes were at least two times faster than DOSXYZnrc (slightly modified from the official version for saving phase space information of the photons leaving the geometry) [12].…”

Section: Discussionmentioning

confidence: 99%

“…Yani et al, have also compared EGSnrc using a phase space scoring plane with MCNPX for X-ray target in 6 MV photon beam using statistical uncertainty and simulation time. According to his study, EGSnrc MC codes were faster and more efficient than MCNPX MC codes in simulation time and statistical uncertainty [ 11 ]. In another study, EGSnrc/Epp MC codes were at least two times faster than DOSXYZnrc (slightly modified from the official version for saving phase space information of the photons leaving the geometry) [ 12 ].…”

Section: Discussionmentioning

confidence: 99%

“…Performance comparisons of different versions of EGSnrc MC codes with different MC codes were done for RT applications. The performance of EGSnrc/BEAMnrc MC code was compared with MCNP to model Gamma Knife 4C [10] and a 6 MV medical linear accelerator (LINAC) [11]. EGSnrc of different versions such as EGSnrc/easy particle propagation (Epp) and EGSnrc/DOSXYZnrc were also compared using X-ray imaging [12].…”

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confidence: 99%

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Comparison of Air-Gaps Effect in a Small Cavity on Dose Calculation for 6 MV Linac

et al. 2021

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Background: Online Monte Carlo (MC) treatment planning is very crucial to increase the precision of intraoperative radiotherapy (IORT). However, the performance of MC methods depends on the geometries and energies used for the problem under study. Objective: This study aimed to compare the performance of MC N-Particle Transport Code version 4c (MCNP4c) and Electron Gamma Shower, National Research Council/easy particle propagation (EGSnrc/Epp) MC codes using similar geometry of an INTRABEAM ® system. Material and Methods: This simulation study was done by increasing the number of particles and compared the performance of MCNP4c and EGSnrc/Epp simulations using an INTRABEAM ® system with 1.5 and 5 cm diameter spherical applicators. A comparison of these two codes was done using simulation time, statistical uncertainty, and relative depth-dose values obtained after doing the simulation by each MC code. Results: The statistical uncertainties for the MCNP4c and EGSnrc/Epp MC codes were below 2% and 0.5%, respectively. 1e9 particles were simulated in 117.89 hours using MCNP4c but a much greater number of particles (5e10 particles) were simulated in a shorter time of 90.26 hours using EGSnrc/Epp MC code. No significant deviations were found in the calculated relative depth-dose values for both in the presence and absence of an air gap between MCNP4c and EGSnrc/Epp MC codes. Nevertheless, the EGSnrc/Epp MC code was found to be speedier and more efficient to achieve accurate statistical precision than MCNP4c. Conclusion: Therefore, in all comparisons criteria used, EGSnrc/Epp MC code is much better than MCNP4c MC code for simulating an INTRABEAM ® system.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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Comparison of Air-Gaps Effect in a Small Cavity on Dose Calculation for 6 MV Linac

et al. 2021

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“…Dosimetri pada CBCT menjadi cukup penting karena penggunaan IGRT dan CT scanner multislice yang cukup sering. CBCT memiliki beberapa jenis modalitas salah satunya adalah varian On Board Imager (OBI) v1.4 yang dirilis pada tahun 2008 (Yani, 2019).…”

Section: Pendahuluanunclassified

Pengaruh Diameter Phantom Silinder Terhadap Dosis Puncak Pada Tabung Sinar-X Menggunakan Simulasi Monte Carlo

Nasir

2021

Phi: J. Phys. Edu. & Applied

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Telah dilakukan suatu penelitian untuk mengetahui pengaruh diameter phantom terhadap dosis puncak yang dihasilkan oleh tabung sinar-X Varian OBI CBCT v1.4 menggunakan simulasi Monte Carlo. Simulasi pemodelan tabung sinar-X Varian OBI v1.4 dilakukan menggunakan program BEAMnrc dan simulasi pemodelan phantom silinder dilakukan menggunakan program DOSRZnrc. Data phase space file yang dihasilkan melalui simulasi pemodelan tabung menjadi input untuk simulasi pemodelan phantom. Penelitian ini dilakukan dengan memvariasikan diameter phantom 10, 15, 20, 25 dan 30 cm. Kurva profil dosis dipilih sepanjang sumbu pusat aksis phantom pada kedalaman 0,5 cm dari permukaan phantom. Dari hasil analisis data diperoleh dosis puncak untuk setiap variasi diameter phantom adalah 2.24 x 10-18 Gy, 1.78 x 10-18 Gy, 1.50 x 10-18 Gy, 1.28 x 10-18 Gy dan 1.08 x 10-18 Gy. Dosis puncak semakin rendah seiring pertambahan diameter phantom. Diameter phantom silinder memberikan efek yang signifikan terhadap dosis yang diserap phantom. Dosis puncak pada phantom yang kecil lebih tinggi dibandingkan phantom yang besar. Hal ini disebabkan karena pada phantom yang lebih besar berkas radiasi akan menempuh jarak yang lebih jauh saat memasuki phantom sehingga dosis yang diserap menjadi lebih rendah.

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“…Thus, computational simulations can be performed as an alternative to experimental methods to obtain valuable information with the prediction of computational results [31][32][33][34][35]. Several Monte Carlobased codes are used in physics research [36][37][38][39][40][41]. The MCNPX code was developed to study particle physics and nuclear reactions, so they simulate an extensive set of particles in a broad energy spectrum [42][43][44][45] and many medical physics applications [46][47][48][49][50].…”

Section: Introductionmentioning

confidence: 99%

Relative dose-response from solid-state and gel dosimeters through Monte Carlo simulations

2022

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The present work compared the relative absorbed dose of some dosimetric materials, for energies of 250 kV and 6 MV, using PENELOPE and MNCPX codes. The composition of each material GD-301, TLD-100, MAGIC, and MAGAT were simulated and disposed of in a phantom filled with water following reference conditions recommended by the TRS-398 protocol. Percentage depth dose was used as a parameter of comparison. Since the obtained results with both codes were found a maximum difference of up to 2 % when compared the water material with experimental data before 6cm were found to a maximum difference of up to 2.2% for 6 MV and 5.5 % for 250 kV. Ratios between simulated PPD and experimental PDD values showed a maximum difference in the build-up region, for 6 MV, due to highsensitivityive from the incident fluency in the simulated and experimental conditions. The ratios for 250 kV showed significant differences from the simulated solid-state rather than gel dosimeters, due to its low energy, depth angular dependence from the solid-state dosimeter, as corroborating by literature. Even the differences showed for both codes, especially for lower energy, due to cross-the section database that implied the interaction probability for each Monte Carlo code, this method has been widely used to model radiation transport in several applications in medical physics, especially in dosimetry.

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Comparison between EGSnrc and MCNPX for X-ray target in 6 MV photon beam

Cited by 5 publications

References 8 publications

Comparison of Air-Gaps Effect in a Small Cavity on Dose Calculation for 6 MV Linac

Comparison of Air-Gaps Effect in a Small Cavity on Dose Calculation for 6 MV Linac

Pengaruh Diameter Phantom Silinder Terhadap Dosis Puncak Pada Tabung Sinar-X Menggunakan Simulasi Monte Carlo

Relative dose-response from solid-state and gel dosimeters through Monte Carlo simulations

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