Open AccessA simple method for electron energy constancy measurement
Author(s) -
King R. Paul,
Anderson R. Scott
Publication year - 2001
Publication title -
journal of applied clinical medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.83
H-Index - 48
ISSN - 1526-9914
DOI - 10.1120/jacmp.v2i1.2628
Subject(s) - energy (signal processing) , electron , ionization , ionization chamber , wedge (geometry) , optics , physics , simple (philosophy) , computational physics , atomic physics , materials science , nuclear physics , ion , philosophy , epistemology , quantum mechanics
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. PACS number(s): 87.52.–g, 87.53.–j, 87.66.–a