Computational model of a 3D dosimetry system - ArcCHECK®
Ionizing radiation therapies have been improving over the years, becoming more specific for each patient. Thereby, as the treatment planning system (TPS) complexities increases, the quality assurance (QA) methods have to be in constant evolution. One of the techniques that demand great complexity is...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)
2019-02-01
|
| Series: | Brazilian Journal of Radiation Sciences |
| Subjects: | |
| Online Access: | https://bjrs.org.br/revista/index.php/REVISTA/article/view/675 |
| _version_ | 1798027525788532736 |
|---|---|
| author | Amanda Cristina Mazer Marcos Vinicius Nakaoka Nakandakari Victor Augusto Bertotti Ribeiro Paulo de Tarso Dalledone Siqueira Julian Marco Barbosa Shorto Hélio Yoriyaz |
| author_facet | Amanda Cristina Mazer Marcos Vinicius Nakaoka Nakandakari Victor Augusto Bertotti Ribeiro Paulo de Tarso Dalledone Siqueira Julian Marco Barbosa Shorto Hélio Yoriyaz |
| author_sort | Amanda Cristina Mazer |
| collection | DOAJ |
| description | Ionizing radiation therapies have been improving over the years, becoming more specific for each patient. Thereby, as the treatment planning system (TPS) complexities increases, the quality assurance (QA) methods have to be in constant evolution. One of the techniques that demand great complexity is the Volumetric Modulated Arc Therapy (VMAT), and one possible way to VMAT commissioning is using 3D dosimetry systems. Recently a new 3D dosimetry system called ArcCHECK had been developed and commercialized mainly for VMAT quality assurance. It is water-equivalent and composed by an array of 1386 diodes arranged in a helical pattern. Since simulation methods, like Monte Carlo method, ensure highly accurate results, MCNP (A General Monte Carlo N-Particle Transport Code System) is totally reliable for problems that involve radiation transport. This work presents two computational models for Monte Carlo simulations to predict detection responses in the QA procedure using the ArcCHECK. The computational models were validated comparing the system responses obtained from MCNP6 simulations against measured responses due to a 6 MeV clinical photon beam from a Linear Accelerator. 2D dose maps were reported here with good agreement between simulated and measured values. |
| first_indexed | 2024-04-11T18:53:06Z |
| format | Article |
| id | doaj.art-5c141f06fd074f04b469837f6749976a |
| institution | Directory Open Access Journal |
| issn | 2319-0612 |
| language | English |
| last_indexed | 2024-04-11T18:53:06Z |
| publishDate | 2019-02-01 |
| publisher | Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR) |
| record_format | Article |
| series | Brazilian Journal of Radiation Sciences |
| spelling | doaj.art-5c141f06fd074f04b469837f6749976a2022-12-22T04:08:17ZengBrazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)Brazilian Journal of Radiation Sciences2319-06122019-02-0172A10.15392/bjrs.v7i2A.675Computational model of a 3D dosimetry system - ArcCHECK®Amanda Cristina Mazer0Marcos Vinicius Nakaoka Nakandakari1Victor Augusto Bertotti Ribeiro2Paulo de Tarso Dalledone Siqueira3Julian Marco Barbosa Shorto4Hélio Yoriyaz5Instituto de Pesquisas Energéticas e Nucleares (IPEN / CNEN - SP)Beneficência Portuguesa de São PauloInstituto de Radiologia do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (InRad-HCFMUSP)Instituto de Pesquisas Energéticas e Nucleares (IPEN / CNEN - SP)Instituto de Pesquisas Energéticas e Nucleares (IPEN / CNEN - SP)Instituto de Pesquisas Energéticas e Nucleares (IPEN / CNEN - SP)Ionizing radiation therapies have been improving over the years, becoming more specific for each patient. Thereby, as the treatment planning system (TPS) complexities increases, the quality assurance (QA) methods have to be in constant evolution. One of the techniques that demand great complexity is the Volumetric Modulated Arc Therapy (VMAT), and one possible way to VMAT commissioning is using 3D dosimetry systems. Recently a new 3D dosimetry system called ArcCHECK had been developed and commercialized mainly for VMAT quality assurance. It is water-equivalent and composed by an array of 1386 diodes arranged in a helical pattern. Since simulation methods, like Monte Carlo method, ensure highly accurate results, MCNP (A General Monte Carlo N-Particle Transport Code System) is totally reliable for problems that involve radiation transport. This work presents two computational models for Monte Carlo simulations to predict detection responses in the QA procedure using the ArcCHECK. The computational models were validated comparing the system responses obtained from MCNP6 simulations against measured responses due to a 6 MeV clinical photon beam from a Linear Accelerator. 2D dose maps were reported here with good agreement between simulated and measured values.https://bjrs.org.br/revista/index.php/REVISTA/article/view/675ArcCHECKMonte Carlo simulationDosimetryQuality AssuranceRadiotherapy |
| spellingShingle | Amanda Cristina Mazer Marcos Vinicius Nakaoka Nakandakari Victor Augusto Bertotti Ribeiro Paulo de Tarso Dalledone Siqueira Julian Marco Barbosa Shorto Hélio Yoriyaz Computational model of a 3D dosimetry system - ArcCHECK® Brazilian Journal of Radiation Sciences ArcCHECK Monte Carlo simulation Dosimetry Quality Assurance Radiotherapy |
| title | Computational model of a 3D dosimetry system - ArcCHECK® |
| title_full | Computational model of a 3D dosimetry system - ArcCHECK® |
| title_fullStr | Computational model of a 3D dosimetry system - ArcCHECK® |
| title_full_unstemmed | Computational model of a 3D dosimetry system - ArcCHECK® |
| title_short | Computational model of a 3D dosimetry system - ArcCHECK® |
| title_sort | computational model of a 3d dosimetry system arccheck r |
| topic | ArcCHECK Monte Carlo simulation Dosimetry Quality Assurance Radiotherapy |
| url | https://bjrs.org.br/revista/index.php/REVISTA/article/view/675 |
| work_keys_str_mv | AT amandacristinamazer computationalmodelofa3ddosimetrysystemarccheck AT marcosviniciusnakaokanakandakari computationalmodelofa3ddosimetrysystemarccheck AT victoraugustobertottiribeiro computationalmodelofa3ddosimetrysystemarccheck AT paulodetarsodalledonesiqueira computationalmodelofa3ddosimetrysystemarccheck AT julianmarcobarbosashorto computationalmodelofa3ddosimetrysystemarccheck AT helioyoriyaz computationalmodelofa3ddosimetrysystemarccheck |