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Characteristics of electron beams from a new 25-MeV linear accelerator



Characteristics of electron beams from a new 25-MeV linear accelerator



Medical Physics 12(6): 799-805



Clinically useful electron fields are produced on the Atomic Energy of Canada, Limited Therac 25 linear accelerator by computer-controlled scanning of the electron beam. Measurements were made to determine the properties of these electron fields. Central axis percentage depth dose and bremsstrahlung background were compared for these fields and for the fields from selected machines that use scattering foils. Dose calibrations were made in both water and polystyrene using the American Association of Physicists in Medicine Task Group 21 protocol. Measurements were made to determine the relative output factors, virtual source position, and the attenuation of the electron fields by lead.

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Accession: 042508141

Download citation: RISBibTeXText

PMID: 4079875

DOI: 10.1118/1.595788


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