Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1877252 | Applied Radiation and Isotopes | 2007 | 10 Pages |
Abstract
90Y is utilized as a therapeutic radioisotope in radiolabeled monoclonal antibodies and in microspheres for targeted radiation therapy of the liver. Currently, the widely used dose calibrator assay of 90Y can have uncertainties exceeding ±10%. A non-destructive assay using spectroscopy is possible by reducing the currently published uncertainty (±12%) in the internal pair production branching ratio for the 0+–0+ transition of 90Zr. A high-purity germanium detector was used to determine the branching ratio to be (31.86±0.47)×10−6.
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Authors
R.G. Selwyn, R.J. Nickles, B.R. Thomadsen, L.A. DeWerd, J.A. Micka,