title: Daily check instrument for photon and electron beam quality assurance of medical linacs.
abstract: An instrument for daily beam checks of medical accelerators is described. Using three silicon diodes, the instrument provides information about calibration, beam symmetry, flatness, and energy variation for both photon and electron beams. Operating characteristics of the instrument and the electronic circuit design permit simple and reliable measurements.
mesh_terms: D055592:Biophysical Phenomena; D001703:Biophysics; D004583:Electrons; D006801:Humans; D011827:Radiation; D011834:Radiation Monitoring / Q000295:instrumentation*; D011879:Radiotherapy Dosage; D011882:Radiotherapy, High-Energy