BS EN 60731:2012 PDF

1   Scope and object

1.1   Scope This International Standard specifies the performance requirements of radiotherapy dosimeters , intended for the measurement of absorbed dose to water or air kerma (and their rates and spatial distributions) in photon , electron , proton or heavy ion radiation fields as used in radiotherapy . The dose monitoring systems incorporated in radiotherapy treatment machines are not covered by this standard , neither are the re-entrant ionization chambers used for brachytherapy source calibration and constancy check devices. This standard is applicable to the following types of dosimeter:

a) field-class dosimeters normally used for