CAD modeling study on FLUKA and OpenMC for accelerator driven system simulation

Li, Jinyang; Gu, Long; Xu, Hu-Shan; Korepanova, Nadezda; Yu, Rui; Zhu, Yongxu; Qin, Changping

doi:10.1016/j.anucene.2017.12.050

Cited by 18 publications

(2 citation statements)

References 21 publications

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“…This code is open source, and its license allows to modify the source code to develop and add new capabilities. An example of this last point is the many number of publications associated to the code, covering topics and developments such as benchmarking [7], coupling and multi-physics [8], geometry and visualization [9], multigroup cross section generation [10], doppler broadening [11], nuclear data [12], parallelism [13], depletion [14] and sensitivity analysis [15].…”

Section: Openmc Monte Carlo Codementioning

confidence: 99%

Calculation of kinetic parameters $β_{\mathit{eff}}$ and $Λ$ with modified open source Monte Carlo code OpenMC(TD)

Romero-Barrientos,

Damian,

Molina

et al. 2021

Preprint

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This work presents the methodology used to expand the capabilities of the Monte Carlo code OpenMC for the calculation of reactor kinetic parameters: effective delayed neutron fraction 𝛽 eff and neutron generation time Λ. The modified code, OpenMC(Time-Dependent) or OpenMC(TD), was then used to calculate the effective delayed neutron fraction by using the prompt method, while the neutron generation time was estimated using the pulsed method, fitting Λ to the decay of the neutron population. OpenMC(TD) is intended to serve as an alternative for the estimation of kinetic parameters when licensed codes are not available. The results obtained are compared to experimental data and MCNP calculated values for 18 benchmark configurations.

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Section: Openmc Monte Carlo Codementioning

confidence: 99%

Calculation of kinetic parameters $β_{\mathit{eff}}$ and $Λ$ with modified open source Monte Carlo code OpenMC(TD)

Romero-Barrientos,

Damian,

Molina

et al. 2021

Preprint

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show abstract

“…However, as an intrinsic tool of FluDAG, CUBIT 8 is not an open‐source program for public users. Besides, some private programs such as CAD‐PSFO 9 have also been developed for modeling conversion between FLUKA and CAD.…”

Section: Introductionmentioning

confidence: 99%

A simple method to import CAD mesh format models in FLUKA

Dong

Sheng

Wang

et al. 2023

J Applied Clin Med Phys

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BackgroundMonte Carlo (MC) code FLUKA possesses widespread usage and accuracy in the simulation of particle beam radiotherapy. However, the conversion from computer‐aided design (CAD) mesh format models to FLUKA readable geometries could not be implemented directly and conveniently. A simple method was required to be developed.PurposeThe present study proposed a simple method to voxelize CAD mesh format files by using a Python‐based script and establishing geometric models in FLUKA.MethodsFive geometric models including cube, sphere, cone, ridge filter (RGF), and 1D‐Ripple Filter (1D‐RiFi) were created and exported as CAD mesh format files (.stl). An open‐source Python‐based script was used to convert them into voxels by endowing X, Y, and Z (following the Cartesian coordinates system) of solid materials in the three‐dimensional (3D) grid. A FLUKA (4‐2.2, CERN) predefined routine was used to establish the voxelized geometry model (VGM), while Flair (3.2‐1, CERN) was used to build the direct geometry model (DGM) in FLUKA for comparison purposes. Uniform carbon ion radiation fields 8×8 cm3 and 4×4 cm3 were generated to transport through the five pairs of models, 2D and 3D dose distributions were compared. The integral depth dose (IDD) in water of three different energy levels of carbon ion beams transported through 1D‐RiFis were also simulated and compared. Moreover, the volume between CAD mesh and VGMs, as well as the computing speed between FLUKA DGMs and VGMs were simultaneously recorded.ResultsThe volume differences between VGMs and CAD mesh models were not more than 0.6%. The maximum mean point‐to‐point deviation of IDD distribution was 0.7% ± 0.51% (mean ± standard deviation). The 3D dose Gamma‐index passing rates were never lower than 97% with criteria of 1%–1 mm. The difference in computing CPU time was 2.89% ± 0.22 on average.ConclusionsThe present study proposed and verified a Python‐based method for converting CAD mesh format files into VGMs and establishing them in FLUKA simply as well as accurately.

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Latest research progress for LBE coolant reactor of China initiative accelerator driven system project

2021

Front. Energy

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CAD modeling study on FLUKA and OpenMC for accelerator driven system simulation

Cited by 18 publications

References 21 publications

Calculation of kinetic parameters $β_{\mathit{eff}}$ and $Λ$ with modified open source Monte Carlo code OpenMC(TD)

Calculation of kinetic parameters $β_{\mathit{eff}}$ and $Λ$ with modified open source Monte Carlo code OpenMC(TD)

A simple method to import CAD mesh format models in FLUKA

Latest research progress for LBE coolant reactor of China initiative accelerator driven system project

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