Measurements and treatment planning calculations of electron dose distributions below bolus edges.
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.
Nygaard
Kirsten
K
Medical Physics Section, Department of Oncology and Medical Physics, Haukeland University Hospital, N-5021 Bergen, Norway.
Odland
Odd Harald
OH
Kvinnsland
Yngve
Y
Nygaard
Britt
B
Heggdal
Jan
J
Muren
Ludvig Paul
LP
D000465:Algorithms; D001943:Breast Neoplasms / Q000532:radiotherapy* / Q000601:surgery; D004583:Electrons / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D011874:Radiometry; D018714:Radiotherapy, Adjuvant; D020266:Radiotherapy, Conformal / Q000379:methods*; D014057:Tomography, X-Ray Computed; D014867:Water
D014867:Water