Effect of surface waves on radiotherapy dosimetric measurements in water tanks.

MedStar author(s):
Citation: Journal of Medical Physics. 36(4):230-3, 2011 Oct.PMID: 22228932Department: RadAmerica, LLC-MedStar HealthForm of publication: Journal ArticleMedline article type(s): Journal ArticleSubject headings: IN PROCESS -- NOT YET INDEXEDYear: 2011ISSN:
  • 0971-6203
Name of journal: Journal of medical physicsAbstract: The effect of surface waves, generated by moving the scanning arms in water phantoms, on radiation dosimetry is studied. It is shown that in large water tanks, high arm speeds can result in dosimetric errors of up to 5%. The measurements that are started after damping the water waves can result in about a 50% improvement in accuracy of measurements. It is shown that the water surfaces at the start of the measurements have high fluctuations that transform to a steady phase by elapsing time.All authors: Bakhtiari MFiscal year: FY2012Digital Object Identifier: Date added to catalog: 2020-12-29
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Journal Article MedStar Authors Catalog Article 22228932 Available 22228932

The effect of surface waves, generated by moving the scanning arms in water phantoms, on radiation dosimetry is studied. It is shown that in large water tanks, high arm speeds can result in dosimetric errors of up to 5%. The measurements that are started after damping the water waves can result in about a 50% improvement in accuracy of measurements. It is shown that the water surfaces at the start of the measurements have high fluctuations that transform to a steady phase by elapsing time.

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