Measurements and treatment planning calculations of electron dose distributions below bolus edges.
作者信息
Nygaard Kirsten, Odland Odd Harald, Kvinnsland Yngve, Nygaard Britt, Heggdal Jan, Muren Ludvig Paul
机构信息
Medical Physics Section, Department of Oncology and Medical Physics, Haukeland University Hospital, N-5021 Bergen, Norway.
出版信息
Radiother Oncol. 2005 Feb;74(2):217-20. doi: 10.1016/j.radonc.2004.12.014.
Electron dose distributions below bolus edges of various thicknesses and angles were measured using a diode in a water phantom. The measurements were compared with treatment planning calculations using the gamma method. Below 5 mm boluses, the dose variations were acceptable for all angles, while for boluses thicker than 5mm, the lowest edge gave the smallest dose variations. The calculated dose distributions agreed well with the measured dose distributions.
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