A comparison between GATE4 results and MCNP4B published data for internal radiation dosimetry.
作者： A. A. Parach , H. Rajabi
DOI: 10.3413/NUKMED-0363-10-10
关键词: Computational physics 、 Internal radiation 、 Monte Carlo method 、 Internal dosimetry 、 Photon 、 Physics 、 Imaging phantom 、 Dosimetry 、 Radionuclide 、 Photon energy 、 Nuclear medicine
摘要: Aim: GATE, has been designed as upper layer of the GEANT4 toolkit for nuclear medicine application including internal dosimetry. However, its results have not fully compared to well-developed codes and anthropomorphic voxel phantoms never used with GATE/GEANT The aim present study was compare dose calculated by MCNP4B published data. Methods: Zubal phantom model a typical adult male. Activity assumed uniformly distributed in liver, kidneys, lungs, spleen, pancreas adrenals. Monte Carlo package estimation doses phantom. Simulations were performed photon energy 0.01–1 MeV mono-energetic electrons 935 keV. Specific absorbed fractions photons S-factors calculated. Results: On average, produces higher SAF (Specific Absorbed Fraction) values (+2.7%) self-absorption lower (-2.9%) cross-absorption. difference paired organs particularly lungs. Moreover lungs source organ at 200 500 keV considerably GATE. Conclusion: Despite differences between GATE4 MCNP4B, can be considered ensuring. This may validation proprietary code radionuclide dosimetry applications.
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