Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1875672 | Applied Radiation and Isotopes | 2016 | 7 Pages |
•Dose calibrators measure radioactivity by ionization of gas from emitted radiation.•Accuracy of dose calibrators depends on “calibration setting numbers” for isotopes.•Many manufacturer settings are interpolated from emissions of other radionuclides.•As a high-precision reference, HPGe gamma-ray spectroscopy was conducted.•New calibrations were found for PET isotopes 52Mn, 64Cu, 76Br, 86Y, 89Zr, and 124I.
For PET radionuclides, the radioactivity of a sample can be conveniently measured by a dose calibrator. These devices depend on a “calibration setting number”, but many recommended settings from manuals were interpolated based on standard sources of other radionuclide(s). We conducted HPGe gamma-ray spectroscopy, resulting in a reference for determining settings in two types of vessels containing one of several PET radionuclides. Our results reiterate the notion that in-house, experimental calibrations are recommended for different radionuclides and vessels.