title: A simple method for electron energy constancy measurement.
abstract: A device is described for use in confirming the energy constancy of clinical electron beams. A wedge shaped absorber is placed over an ionization chamber leading to an energy dependent response. A measurement under the energy filter is divided by a measurement in air to correct for the inherent energy dependence of the chamber. A nearly linear response is demonstrated.
authors.affiliation: Jeff Anderson Regional Medical Center, 1724 23rd Avenue, Bldg. C, Meridian, Mississippi 39301, USA.
authors.forename: R P
authors.initials: RP
authors.lastname: King
authors.forename: R S
authors.initials: RS
authors.lastname: Anderson
mesh_terms: D004583:Electrons; D006801:Humans; D011785:Quality Assurance, Health Care; D011835:Radiation Protection; D011874:Radiometry / Q000295:instrumentation*; D011882:Radiotherapy, High-Energy / Q000592:standards*