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Evaluation of lead acrylic as a filter for contaminant electrons in megavoltage photon beams
Author(s) -
Huang D.,
Williams S.,
Chaney E.,
Long F.
Publication year - 1983
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.595278
Subject(s) - photon , electron , materials science , contamination , lead (geology) , filter (signal processing) , optics , medical physics , physics , nuclear physics , computer science , ecology , geomorphology , computer vision , biology , geology
Electron contamination of megavoltage photon beams increases the dose at the entrance surface and throughout the buildup region. Measurements on Co‐60, 4‐ and 6‐MV photon beams show that lead acrylic is an effective filter for removing contaminant electrons while also overcoming a number of disadvantages preventing routine use of previously proposed techniques.