Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1879906 | Applied Radiation and Isotopes | 2006 | 4 Pages |
Abstract
The absolute activities of the pure β-emitters 89Sr and 90Y have been determined by a direct method, namely the triple-to-double coincidence ratio (TDCR) efficiency calculation technique. This undertaking has extended further the number of radionuclides that have been standardized by this non-extrapolation liquid scintillation (LS) method. Both measurements were carried out within the framework of international key comparisons under the auspices of the International Bureau of Weights and Measures (BIPM). The TDCR results agreed well with those of other participating national laboratories, most using alternative (tracer) methods.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
B.R.S. Simpson, W.M. Van Wyngaardt,