Determination of consensus kQ values for megavoltage photon beams for the update of IAEA TRS-398
| Autor: | J. Tikkanen, Jan Seuntjens, Pedro Teles, M McEwen, Maria Pimpinella, Pedro Andreo, M. Hanlon, Claus E. Andersen, L. Sommier, Ralf-Peter Kapsch, M. Pinto, Lalageh Mirzakhanian, L. De Prez, F. Delaunay, P Francescon, Klemens Zink, Javier Vijande, Jorge Borbinha, David T Burns, Facundo Ballester, B. R. Muir, S Vatnitsky, Chris Oliver, Jarkko Ojala |
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| Přispěvatelé: | Andreo, Pedro, Burns, David T, Kapsch, R P, Mcewen, M, Vatnitsky, S, Andersen, C E, Ballester, Facundo, Borbinha, J, Delaunay, F, Francescon, P, Hanlon, M D, Mirzakhanian, L, Muir, B, Ojala, J, Oliver, C P, Pimpinella, Maria, Pinto, Massimo, de Prez, Leon Armand, Seuntjens, Jan, Sommier, L, Teles, P, Tikkanen, J, Vijande, J, Zink, Klemens |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
TRS-398
INMRI medicine.medical_treatment Monte Carlo method 030218 nuclear medicine & medical imaging Nuclear physics 03 medical and health sciences 0302 clinical medicine medicine Relative biological effectiveness Dosimetry Radiology Nuclear Medicine and imaging External beam radiotherapy Monte Carlo Physics MV photon beams Radiological and Ultrasound Technology dosimetry ionization chambers metrology metrologia 030220 oncology & carcinogenesis Absorbed dose Ionization chamber Photon beams beam quality correction factors Laser beam quality |
| ISSN: | 1361-6560 |
| DOI: | 10.5281/zenodo.3903294 |
| Popis: | The IAEA is currently coordinating a multi-year project to update the TRS-398 Code of Practice for the dosimetry of external beam radiotherapy based on standards of absorbed dose to water. One major aspect of the project is the determination of new beam quality correction factors, kQ, for megavoltage photon beams consistent with developments in radiotherapy dosimetry and technology since the publication of TRS-398 in 2000. Specifically, all values must be based on, or consistent with, the key data of ICRU Report 90. Data sets obtained from Monte Carlo (MC) calculations by advanced users and measurements at primary standards laboratories have been compiled for 23 cylindrical ionization chamber types, consisting of 725 MC-calculated and 179 experimental data points. These have been used to derive consensus kQ values as a function of the beam quality index TPR20,10 with a combined standard uncertainty of 0.6%. Mean values of MC-derived chamber-specific fch factors for cylindrical and plane-parallel chamber types in 60Co beams have also been obtained with an estimated uncertainty of 0.4%. This is the version of the article before editing, as submitted by an author to Physics in Medicine and Biology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://iopscience.iop.org/article/10.1088/1361-6560/ab807b/pdf |
| Databáze: | OpenAIRE |
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