title: A flatness and calibration monitor for accelerator photon and electron beams.
abstract: A flatness monitor has been built to quickly and accurately check accelerator beam flatness and dose calibration. Consisting of a 7 X 7 ion chamber array, the unit operates in photon beams from 60Co energies to 25 MV and electron beams (scattered or scanned) from 6 MeV to 25 MeV.
mesh_terms: D004583:Electrons; D011827:Radiation; D011829:Radiation Dosage / Q000379:methods*; D011834:Radiation Monitoring / Q000379:methods*; D011879:Radiotherapy Dosage / Q000592:standards*