Analysis of different protocols using an Exradin A12 cylindrical chamber for electron beam reference dosimetry
The Technical Report Series 398 (TRS-398), Electron Dosimetry Working Party (EWDP), and Task Group 51 (TG 51) are the most important protocols for reference dosimetry. In the case of electron beam reference dosimetry, these protocols recommend using parallel-plate ionization chambers for beams with...
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Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)
2023-06-01
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| Series: | Brazilian Journal of Radiation Sciences |
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| Online Access: | https://bjrs.org.br/revista/index.php/REVISTA/article/view/2232 |
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| author | Andre Gonçalves Prospero Ana Carolina Ferreira Diana Rodrigues Pina Antonio Cesar Pernomian Wander de Oliveira |
| author_facet | Andre Gonçalves Prospero Ana Carolina Ferreira Diana Rodrigues Pina Antonio Cesar Pernomian Wander de Oliveira |
| author_sort | Andre Gonçalves Prospero |
| collection | DOAJ |
| description | The Technical Report Series 398 (TRS-398), Electron Dosimetry Working Party (EWDP), and Task Group 51 (TG 51) are the most important protocols for reference dosimetry. In the case of electron beam reference dosimetry, these protocols recommend using parallel-plate ionization chambers for beams with R50 values below specific thresholds. However, recent papers suggested using cylindrical chambers for reference dosimetry of all electron beam energies. Here we compared different protocols using a cylindrical chamber with the recommendations of using a parallel-plate chamber and the TRS-398 formalism for the dosimetry of several electron beam energies. We employed electron beams with nominal energies of 4, 6, 9, 12, and 15 MeV of a Varian 2100C linear accelerator, an Exradin A12, and an Exradin P11 chamber for the analysis. The results showed differences below 3% when comparing the cylindrical chamber and alternative protocols with the parallel-plate chamber and the TRS-398 formalism for electron beams reference dosimetry. These results can bring confidence in using a cylindrical chamber for reference electron beam dosimetry, which can make the electron beam dosimetry procedure simpler and faster. |
| format | Article |
| id | doaj-art-4bccabde1fe34ed0a1c8eb8d5f6b0e47 |
| institution | Matheson Library |
| issn | 2319-0612 |
| language | English |
| publishDate | 2023-06-01 |
| publisher | Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR) |
| record_format | Article |
| series | Brazilian Journal of Radiation Sciences |
| spelling | doaj-art-4bccabde1fe34ed0a1c8eb8d5f6b0e472025-07-16T00:39:14ZengBrazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)Brazilian Journal of Radiation Sciences2319-06122023-06-0111211610.15392/2319-0612.2023.22321850Analysis of different protocols using an Exradin A12 cylindrical chamber for electron beam reference dosimetryAndre Gonçalves Prospero0Ana Carolina Ferreira1Diana Rodrigues Pina2Antonio Cesar Pernomian3Wander de Oliveira4Hospital das Clínicas da Faculdade de Medicina de Botucatu (HCFMB) - Setor de RadioterapiaUniversity Hospital of the Botucatu Medical School (HCFMB), UNESP, Department of Radiotherapy, 18618-687, Botucatu, São Paulo, BrazilbUniversity Hospital of the Botucatu Medical School (HCFMB), UNESP, Department of Tropical Diseases and Imaging Diagnosis, 18618-687, Botucatu, São Paulo, BrazilUniversity Hospital of the Botucatu Medical School (HCFMB), UNESP, Department of Radiotherapy, 18618-687, Botucatu, São Paulo, BrazilUniversity Hospital of the Botucatu Medical School (HCFMB), UNESP, Department of Radiotherapy, 18618-687, Botucatu, São Paulo, BrazilThe Technical Report Series 398 (TRS-398), Electron Dosimetry Working Party (EWDP), and Task Group 51 (TG 51) are the most important protocols for reference dosimetry. In the case of electron beam reference dosimetry, these protocols recommend using parallel-plate ionization chambers for beams with R50 values below specific thresholds. However, recent papers suggested using cylindrical chambers for reference dosimetry of all electron beam energies. Here we compared different protocols using a cylindrical chamber with the recommendations of using a parallel-plate chamber and the TRS-398 formalism for the dosimetry of several electron beam energies. We employed electron beams with nominal energies of 4, 6, 9, 12, and 15 MeV of a Varian 2100C linear accelerator, an Exradin A12, and an Exradin P11 chamber for the analysis. The results showed differences below 3% when comparing the cylindrical chamber and alternative protocols with the parallel-plate chamber and the TRS-398 formalism for electron beams reference dosimetry. These results can bring confidence in using a cylindrical chamber for reference electron beam dosimetry, which can make the electron beam dosimetry procedure simpler and faster.https://bjrs.org.br/revista/index.php/REVISTA/article/view/2232electron beamdosimetrycylindrical chambersparallel plate chambers |
| spellingShingle | Andre Gonçalves Prospero Ana Carolina Ferreira Diana Rodrigues Pina Antonio Cesar Pernomian Wander de Oliveira Analysis of different protocols using an Exradin A12 cylindrical chamber for electron beam reference dosimetry Brazilian Journal of Radiation Sciences electron beam dosimetry cylindrical chambers parallel plate chambers |
| title | Analysis of different protocols using an Exradin A12 cylindrical chamber for electron beam reference dosimetry |
| title_full | Analysis of different protocols using an Exradin A12 cylindrical chamber for electron beam reference dosimetry |
| title_fullStr | Analysis of different protocols using an Exradin A12 cylindrical chamber for electron beam reference dosimetry |
| title_full_unstemmed | Analysis of different protocols using an Exradin A12 cylindrical chamber for electron beam reference dosimetry |
| title_short | Analysis of different protocols using an Exradin A12 cylindrical chamber for electron beam reference dosimetry |
| title_sort | analysis of different protocols using an exradin a12 cylindrical chamber for electron beam reference dosimetry |
| topic | electron beam dosimetry cylindrical chambers parallel plate chambers |
| url | https://bjrs.org.br/revista/index.php/REVISTA/article/view/2232 |
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