Denis E Bergeron1, Jeffrey T Cessna. 1. Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland, USA.
Abstract
BACKGROUND: Most clinical measurements of radioactivity, whether for therapeutic or imaging nuclides, rely on commercial re-entrant ionization chambers ('dose calibrators'). The National Institute of Standards and Technology (NIST) maintains a battery of representative calibrators and works to link calibration settings ('dial settings') to primary radioactivity standards. Here, we provide a summary of NIST-determined dial settings for 22 radionuclides. METHODS: We collected previously published dial settings and determined some new ones using either the calibration curve method or the dialing-in approach. RESULTS: The dial settings with their uncertainties are collected in a comprehensive table. CONCLUSION: In general, current manufacturer-provided calibration settings give activities that agree with National Institute of Standards and Technology standards to within a few percent.
BACKGROUND: Most clinical measurements of radioactivity, whether for therapeutic or imaging nuclides, rely on commercial re-entrant ionization chambers ('dose calibrators'). The National Institute of Standards and Technology (NIST) maintains a battery of representative calibrators and works to link calibration settings ('dial settings') to primary radioactivity standards. Here, we provide a summary of NIST-determined dial settings for 22 radionuclides. METHODS: We collected previously published dial settings and determined some new ones using either the calibration curve method or the dialing-in approach. RESULTS: The dial settings with their uncertainties are collected in a comprehensive table. CONCLUSION: In general, current manufacturer-provided calibration settings give activities that agree with National Institute of Standards and Technology standards to within a few percent.
Authors: Denis E Bergeron; Jeffrey T Cessna; Daniel B Golas; Rheannan K Young; Brian E Zimmerman Journal: Appl Radiat Isot Date: 2014-03-26 Impact factor: 1.513
Authors: Denis E Bergeron; Jeffrey T Cessna; Bert M Coursey; Ryan Fitzgerald; Brian E Zimmerman Journal: J Res Natl Inst Stand Technol Date: 2014-08-27
Authors: R Fitzgerald; D E Bergeron; S P Giblin; D G Jarrett; S M Judge; C Michotte; H Scherer; N M Zimmerman Journal: Appl Radiat Isot Date: 2020-05-13 Impact factor: 1.513
Authors: Elisa Napoli; Jeffrey T Cessna; Ryan Fitzgerald; Leticia Pibida; Ronald Collé; Lizbeth Laureano-Pérez; Brian E Zimmerman; Denis E Bergeron Journal: Appl Radiat Isot Date: 2019-10-11 Impact factor: 1.513