DOI | Trouver le DOI : https://doi.org/10.1118/1.4866223 |
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Auteur | Rechercher : McEwen, Malcolm1; Rechercher : DeWerd, Larry; Rechercher : Ibbott, Geoffrey; Rechercher : Followill, David; Rechercher : Rogers, David W.O.; Rechercher : Seltzer, Stephen; Rechercher : Seuntjens, Jan |
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Affiliation | - Conseil national de recherches du Canada. Science des mesures et étalons
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Format | Texte, Article |
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Sujet | rotraxate; water; accuracy; air temperature; atmospheric pressure; calibration; dosimetry; humidity; ionization chamber; linear accelerator; megavoltage radiotherapy; Monte Carlo method; photon therapy; practice guideline; radiation beam; radiation dose distribution; radiation field; water temperature |
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Résumé | An addendum to the AAPM's TG-51 protocol for the determination of absorbed dose to water in megavoltage photon beams is presented. This addendum continues the procedure laid out in TG-51 but new kQ data for photon beams, based on Monte Carlo simulations, are presented and recommendations are given to improve the accuracy and consistency of the protocol's implementation. The components of the uncertainty budget in determining absorbed dose to water at the reference point are introduced and the magnitude of each component discussed. Finally, the consistency of experimental determination of N D,w coefficients is discussed. It is expected that the implementation of this addendum will be straightforward, assuming that the user is already familiar with TG-51. The changes introduced by this report are generally minor, although new recommendations could result in procedural changes for individual users. It is expected that the effort on the medical physicist's part to implement this addendum will not be significant and could be done as part of the annual linac calibration. |
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Date de publication | 2014 |
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Dans | |
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Langue | anglais |
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Publications évaluées par des pairs | Oui |
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Numéro NPARC | 21272744 |
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Exporter la notice | Exporter en format RIS |
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Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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Identificateur de l’enregistrement | a371d919-a33f-4b4a-9f5c-092c7ea751da |
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Enregistrement créé | 2014-12-03 |
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Enregistrement modifié | 2020-04-22 |
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