ArticleReports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology
Detailed analysis of dose difference in using water as tissue-equivalent material in
Article in Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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3 authors at 2 institutions in 1 country.
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Abstract
aimThe purpose of this study is to analyse how small variations in the elemental composition of soft tissue lead to differences in dose distributions from a
backgroundWater is normally used as a tissue-equivalent phantom material in radiotherapy dosimetry. MATERIALS AND
methodsNeutron energy spectra, neutron and gamma-ray dose rate distributions were calculated for a
resultsThe obtained results showed differences between total dose rates in various tissues relative to water varying between zero and 4.94%. The contributions of neutron and total gamma ray doses to these differences are, on average, 81% and 19%, respectively. It was found that the dose differences between various soft tissues and water depend not only on the soft tissue composition, but also on the beam type emitted from the
conclusionAssuming water as a tissue-equivalent material, although leads to overestimation of dose rate (except in the case of adipose tissue), is acceptable and suitable for use in
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