title: Is there an influence of the surrounding material on the response of the alanine dosimetry system?
abstract: In a combined experimental and Monte Carlo study the possible influence of the surrounding material on the response of the alanine dosimetry system was investigated. The aim of this work was to estimate the uncertainties induced by the surroundings with respect to quality assurance measurements for radiotherapy, for example in humanoid phantoms. Six different materials were tested. The electron density range covered comprises the range present in human tissue. No significant influence of the surrounding material could be found for irradiations in the (60)Co reference field of the Physikalisch-Technische Bundesanstalt (PTB).
authors.affiliation: Physikalisch-Technische Bundesanstalt, Braunschweig, Germany. mathias.anton@ptb.de
authors.forename: Mathias
authors.initials: M
authors.lastname: Anton
authors.forename: Ralf-Peter
authors.initials: RP
authors.lastname: Kapsch
authors.forename: Thomas
authors.initials: T
authors.lastname: Hackel
mesh_terms: D000409:Alanine; D004578:Electron Spin Resonance Spectroscopy; D006801:Humans; D009010:Monte Carlo Method; D019047:Phantoms, Imaging; D011874:Radiometry / Q000379:methods*; D012680:Sensitivity and Specificity; D035501:Uncertainty
chemical_list: D000409:Alanine