Investigation the Performance Accuracy of Contoured Dual Ring Double Scatterer System for Flat Beam Generation at Proton Therapy
Background: At proton radiotherapy, the extracted beam from accelerator is not initially suitable for tumor treatment and a modification is needed for beam shape and energy due to tumor dimension and site. One clinical strategy is the use of double scattering systems known as passive dose delivery t...
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| Format: | Article |
| Language: | English |
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Shiraz University of Medical Sciences
2023-04-01
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| Series: | Journal of Biomedical Physics and Engineering |
| Subjects: | |
| Online Access: | https://jbpe.sums.ac.ir/article_47326_db15e9ff2eb6517c69f6383a4c4ea9d7.pdf |
| _version_ | 1797845972828553216 |
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| author | Ahmad Esmaili Torshabi Rouhollah Ghasemkhani |
| author_facet | Ahmad Esmaili Torshabi Rouhollah Ghasemkhani |
| author_sort | Ahmad Esmaili Torshabi |
| collection | DOAJ |
| description | Background: At proton radiotherapy, the extracted beam from accelerator is not initially suitable for tumor treatment and a modification is needed for beam shape and energy due to tumor dimension and site. One clinical strategy is the use of double scattering systems known as passive dose delivery technique to generate proper flattening, transversely. Objective: This work aims to design and simulate a new version of double scattering system and compare its performance with another available scatterer system, quantitatively.Material and Methods: In this analytical study, Monte Carlo FLUKA code is utilized to simulate the performance of proposed system in generating lateral flat beam. The simulation process is very close to real experimental condition, performed at proton beam irradiation room at Tohoku University in Japan. Moreover, the presence of secondary neutrons, produced due to protons collision with proposed scattering system, is considered as main issue. Results: Final results represent that the proposed scattering system is robust to generate 40 mm flat region with an acceptable uniformity degree. Energy loss caused by current dual scatterer is more than simple ring technique, while the secondary neutrons produced by proposed system are larger than other system. Conclusion: This study simulates the performance of a new dual ring double scattering system. Final results show that there is a close correlation between proposed system and current scattering system. The only concern is about the presence of secondary neutrons mainly at high energy proton particles. |
| first_indexed | 2024-04-09T17:47:35Z |
| format | Article |
| id | doaj.art-ce9657b3a3064cefb5870f6fbc4124cb |
| institution | Directory Open Access Journal |
| issn | 2251-7200 |
| language | English |
| last_indexed | 2024-04-09T17:47:35Z |
| publishDate | 2023-04-01 |
| publisher | Shiraz University of Medical Sciences |
| record_format | Article |
| series | Journal of Biomedical Physics and Engineering |
| spelling | doaj.art-ce9657b3a3064cefb5870f6fbc4124cb2023-04-16T11:14:40ZengShiraz University of Medical SciencesJournal of Biomedical Physics and Engineering2251-72002023-04-0113210711610.31661/jbpe.v0i0.2002-106647326Investigation the Performance Accuracy of Contoured Dual Ring Double Scatterer System for Flat Beam Generation at Proton TherapyAhmad Esmaili Torshabi0Rouhollah Ghasemkhani1Faculty of Sciences and Modern Technologies, Graduate University of Advanced Technology, Kerman, IranFaculty of Sciences and Modern Technologies, Graduate University of Advanced Technology, Kerman, IranBackground: At proton radiotherapy, the extracted beam from accelerator is not initially suitable for tumor treatment and a modification is needed for beam shape and energy due to tumor dimension and site. One clinical strategy is the use of double scattering systems known as passive dose delivery technique to generate proper flattening, transversely. Objective: This work aims to design and simulate a new version of double scattering system and compare its performance with another available scatterer system, quantitatively.Material and Methods: In this analytical study, Monte Carlo FLUKA code is utilized to simulate the performance of proposed system in generating lateral flat beam. The simulation process is very close to real experimental condition, performed at proton beam irradiation room at Tohoku University in Japan. Moreover, the presence of secondary neutrons, produced due to protons collision with proposed scattering system, is considered as main issue. Results: Final results represent that the proposed scattering system is robust to generate 40 mm flat region with an acceptable uniformity degree. Energy loss caused by current dual scatterer is more than simple ring technique, while the secondary neutrons produced by proposed system are larger than other system. Conclusion: This study simulates the performance of a new dual ring double scattering system. Final results show that there is a close correlation between proposed system and current scattering system. The only concern is about the presence of secondary neutrons mainly at high energy proton particles.https://jbpe.sums.ac.ir/article_47326_db15e9ff2eb6517c69f6383a4c4ea9d7.pdfproton therapyscatteringradiationproton beamneutronsmonte carlo method |
| spellingShingle | Ahmad Esmaili Torshabi Rouhollah Ghasemkhani Investigation the Performance Accuracy of Contoured Dual Ring Double Scatterer System for Flat Beam Generation at Proton Therapy Journal of Biomedical Physics and Engineering proton therapy scattering radiation proton beam neutrons monte carlo method |
| title | Investigation the Performance Accuracy of Contoured Dual Ring Double Scatterer System for Flat Beam Generation at Proton Therapy |
| title_full | Investigation the Performance Accuracy of Contoured Dual Ring Double Scatterer System for Flat Beam Generation at Proton Therapy |
| title_fullStr | Investigation the Performance Accuracy of Contoured Dual Ring Double Scatterer System for Flat Beam Generation at Proton Therapy |
| title_full_unstemmed | Investigation the Performance Accuracy of Contoured Dual Ring Double Scatterer System for Flat Beam Generation at Proton Therapy |
| title_short | Investigation the Performance Accuracy of Contoured Dual Ring Double Scatterer System for Flat Beam Generation at Proton Therapy |
| title_sort | investigation the performance accuracy of contoured dual ring double scatterer system for flat beam generation at proton therapy |
| topic | proton therapy scattering radiation proton beam neutrons monte carlo method |
| url | https://jbpe.sums.ac.ir/article_47326_db15e9ff2eb6517c69f6383a4c4ea9d7.pdf |
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