Calibration of radiotherapy ionization chambers using Co-60 is outdated and should be replaced by direct calibration in linear accelerator beams

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1118/1.4922710
AuthorSearch for: ; Search for: 1; Search for:
Name affiliation
  1. National Research Council of Canada. Measurement Science and Standards
FormatText, Article
Journal titleMedical Physics
ISSN0094-2405
Volume42
Issue9
Pages5003–5006
Abstract
Most medical linear accelerators worldwide are calibrated using ionization chambers that are themselves calibrated by a standards laboratory, or secondary standards laboratory, in a Co-60 beam. Because these chambers are actually used to calibrate high-energy x-ray beams, it has been suggested that calibration against Co-60 is outdated and should be replaced by calibration in linear accelerator beams. This is the claim debated in this month’s Point/Counterpoint.
Publication date
LanguageEnglish
Peer reviewedYes
NPARC number23000718
Export citationExport as RIS
Report a correctionReport a correction
Record identifier09ffb6a4-14f2-43ba-b476-736579f222cb
Record created2016-09-01
Record modified2020-04-22
Report a problem on this page
Date modified: