title: Measurements and treatment planning calculations of electron dose distributions below bolus edges.
abstract: 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.
authors.affiliation: Medical Physics Section, Department of Oncology and Medical Physics, Haukeland University Hospital, N-5021 Bergen, Norway.
authors.forename: Kirsten
authors.initials: K
authors.lastname: Nygaard
authors.forename: Odd Harald
authors.initials: OH
authors.lastname: Odland
authors.forename: Yngve
authors.initials: Y
authors.lastname: Kvinnsland
authors.forename: Britt
authors.initials: B
authors.lastname: Nygaard
authors.forename: Jan
authors.initials: J
authors.lastname: Heggdal
authors.forename: Ludvig Paul
authors.initials: LP
authors.lastname: Muren
mesh_terms: 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
chemical_list: D014867:Water