An update on 'dose calibrator' settings for nuclides used in nuclear medicine
- PMID: 29596133
- PMCID: PMC6237185
- DOI: 10.1097/MNM.0000000000000833
An update on 'dose calibrator' settings for nuclides used in nuclear medicine
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.
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