Calculation of photon absorbed dose kernel in a homogeneous water phantom by Monte Carlo Geant4 toolkit
Nowadays, convolution/superposition(C/S) is used to calculate absorbed dose distribution by using the absorbed dose kernel(ADK). ADK describes the absorbed dose distribution per number of interaction at a small volume around the point of photon interaction. The purpose of this study is to calculate...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Isfahan University of Technology
2023-05-01
|
| Series: | Iranian Journal of Physics Research |
| Subjects: | |
| Online Access: | https://ijpr.iut.ac.ir/article_3358_c78897a5adb50e31ed497c4d9d46f90f.pdf |
| _version_ | 1827630638461616128 |
|---|---|
| author | Keyvan Tabaei Mojtaba Shamsaei Zafarghand, |
| author_facet | Keyvan Tabaei Mojtaba Shamsaei Zafarghand, |
| author_sort | Keyvan Tabaei |
| collection | DOAJ |
| description | Nowadays, convolution/superposition(C/S) is used to calculate absorbed dose distribution by using the absorbed dose kernel(ADK). ADK describes the absorbed dose distribution per number of interaction at a small volume around the point of photon interaction. The purpose of this study is to calculate ADK and investigate its angular and radial behavior. In this study, ADK is calculated in a homogeneous water phantom in the polar coordinates by using the Monte Carlo Geant4 toolkit for monoenergetic photons with energies in the range 0.3MeV-5MeV. To study accurately, ADK is divided into several groups in order of produced charged particle set in motion at each photon interaction. Our result shows ADK rapidly decreases as the polar angle, with respect to the incident photon direction, is increased. As the radial distance from the interaction point increases, ADK is raised and then strongly decreased. ADK is symmetrically distributed around the point of interaction for low incident photon energy while forward distributed for high incident energy photons. |
| first_indexed | 2024-03-09T14:09:34Z |
| format | Article |
| id | doaj.art-258612edc2434a21896d40fcf0f806d2 |
| institution | Directory Open Access Journal |
| issn | 1682-6957 2345-3664 |
| language | English |
| last_indexed | 2024-03-09T14:09:34Z |
| publishDate | 2023-05-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Iranian Journal of Physics Research |
| spelling | doaj.art-258612edc2434a21896d40fcf0f806d22023-11-29T12:28:05ZengIsfahan University of TechnologyIranian Journal of Physics Research1682-69572345-36642023-05-01231657210.47176/ijpr.23.1.815633358Calculation of photon absorbed dose kernel in a homogeneous water phantom by Monte Carlo Geant4 toolkitKeyvan Tabaei0Mojtaba Shamsaei Zafarghand,1Energy Engineering and Physics Department, Amirkabir University of Technology, P.O.BOX: 4413-15875, Tehran, IranEnergy Engineering and Physics Department, Amirkabir University of Technology, P.O.BOX: 4413-15875, Tehran, IranNowadays, convolution/superposition(C/S) is used to calculate absorbed dose distribution by using the absorbed dose kernel(ADK). ADK describes the absorbed dose distribution per number of interaction at a small volume around the point of photon interaction. The purpose of this study is to calculate ADK and investigate its angular and radial behavior. In this study, ADK is calculated in a homogeneous water phantom in the polar coordinates by using the Monte Carlo Geant4 toolkit for monoenergetic photons with energies in the range 0.3MeV-5MeV. To study accurately, ADK is divided into several groups in order of produced charged particle set in motion at each photon interaction. Our result shows ADK rapidly decreases as the polar angle, with respect to the incident photon direction, is increased. As the radial distance from the interaction point increases, ADK is raised and then strongly decreased. ADK is symmetrically distributed around the point of interaction for low incident photon energy while forward distributed for high incident energy photons.https://ijpr.iut.ac.ir/article_3358_c78897a5adb50e31ed497c4d9d46f90f.pdfabsorbed dose kerneldose distribution calculationconvolutiongeant4 toolkit |
| spellingShingle | Keyvan Tabaei Mojtaba Shamsaei Zafarghand, Calculation of photon absorbed dose kernel in a homogeneous water phantom by Monte Carlo Geant4 toolkit Iranian Journal of Physics Research absorbed dose kernel dose distribution calculation convolution geant4 toolkit |
| title | Calculation of photon absorbed dose kernel in a homogeneous water phantom by Monte Carlo Geant4 toolkit |
| title_full | Calculation of photon absorbed dose kernel in a homogeneous water phantom by Monte Carlo Geant4 toolkit |
| title_fullStr | Calculation of photon absorbed dose kernel in a homogeneous water phantom by Monte Carlo Geant4 toolkit |
| title_full_unstemmed | Calculation of photon absorbed dose kernel in a homogeneous water phantom by Monte Carlo Geant4 toolkit |
| title_short | Calculation of photon absorbed dose kernel in a homogeneous water phantom by Monte Carlo Geant4 toolkit |
| title_sort | calculation of photon absorbed dose kernel in a homogeneous water phantom by monte carlo geant4 toolkit |
| topic | absorbed dose kernel dose distribution calculation convolution geant4 toolkit |
| url | https://ijpr.iut.ac.ir/article_3358_c78897a5adb50e31ed497c4d9d46f90f.pdf |
| work_keys_str_mv | AT keyvantabaei calculationofphotonabsorbeddosekernelinahomogeneouswaterphantombymontecarlogeant4toolkit AT mojtabashamsaeizafarghand calculationofphotonabsorbeddosekernelinahomogeneouswaterphantombymontecarlogeant4toolkit |