2017
DOI: 10.1016/j.canrad.2016.09.017
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Low dose out-of-field radiotherapy, part 1: Measurement of scattered doses

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Cited by 13 publications
(11 citation statements)
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“…For specific out-of-field points, the differences in energy between 6FF and 6FFF photons is small [ 10 ], and the dose rate changes as a function of increasing distance. However, since the most important factor is proximity to the radiation field [ 7 , 13 ], no correction factor is needed for relative comparisons. All statistical analyses and graphs were made with the R software program.…”
Section: Methodsmentioning
confidence: 99%
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“…For specific out-of-field points, the differences in energy between 6FF and 6FFF photons is small [ 10 ], and the dose rate changes as a function of increasing distance. However, since the most important factor is proximity to the radiation field [ 7 , 13 ], no correction factor is needed for relative comparisons. All statistical analyses and graphs were made with the R software program.…”
Section: Methodsmentioning
confidence: 99%
“…They occur in places laying inside of one or more beams (primary radiation) or are due to scattered radiation only (out-of-field doses). Studies have evaluated nontarget doses in commonly used linacs, including the Clinac2300 (Varian) [ 6 , 7 ], Elekta Synergy (Elekta), and Siemens Primus [ 8 ]. However, relatively few studies have compared nontarget doses in more modern linacs such as TrueBeam (Varian) and CyberKnife (Accuray).…”
Section: Introductionmentioning
confidence: 99%
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“…TLD batch homogeneity response was less than 3%. TL detectors are energy-dependent [23,24] and additional correction factors should be used to reduce the over-response at low energy spectrum. However, at the distances and depth considered in this experimental setup, TLD sensitivity was previously estimated to be close to unity [25], therefore we did not apply further corrections.…”
Section: Detector Calibrationmentioning
confidence: 99%
“…In clinical radiotherapy, out‐of‐field radiation doses could negatively impact the patients. Consequently, it is essential to determine the out‐of‐field radiation doses (both close to and far from the field edge) and their characteristics, including the following: dosimetric measurements of low dose radiation, 1 dose distribution and energy spectrum (calculated by advanced modeling methods such as Monte Carlo 2 , 3 ), and the impact on radiobiological response 4 , 5 to determine the risk of inducing a secondary tumor. 6 , 7 …”
Section: Introductionmentioning
confidence: 99%