| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8210270 | Applied Radiation and Isotopes | 2014 | 5 Pages |
Abstract
Calibration factors for commercial ionization chambers (i.e. dose calibrators) were determined for a solution of 123I; the activity was based on the 1976 NBS standard. A link between the NIST standard and the International Reference System (SIR) was established. The two major U.S. dose calibrator manufacturers recommend oppositely biased calibration factors, giving a spread of 11.3% in measured activities. With modern quantitative imaging techniques capable of â¤10% accuracy, this bias for a SPECT nuclide is highly significant.
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Authors
Denis E. Bergeron, Jeffrey T. Cessna, Daniel B. Golas, Rheannan K. Young, Brian E. Zimmerman,