Woods M J, Baker M I, Tyler D K, Chari K
Ionising Radiation Metrology Consultants Ltd., Teddington, Middlesex TW11 9PQ, UK.
Appl Radiat Isot. 2006 Oct-Nov;64(10-11):1375-9. doi: 10.1016/j.apradiso.2006.02.048. Epub 2006 Mar 27.
Concerns have been raised within the nuclear medicine field about the accuracy of measurements of 89Sr. The 85Sr impurity present in the 89Sr solution has a significant effect on the response of radionuclide calibrators used in hospitals. A comparison was conducted between the National Physical Laboratory (NPL) and the UK hospital physics community. Only 58% of the results were within 5% of the NPL value. Work at NPL has resulted in correction factors for the NPL secondary standard radionuclide calibrator and for Capintec calibrators, which will produce a significant improvement in performance.
核医学领域对89Sr测量的准确性提出了担忧。89Sr溶液中存在的85Sr杂质对医院使用的放射性核素校准仪的响应有显著影响。国家物理实验室（NPL）与英国医院物理界进行了比较。结果只有58%在NPL值的5%范围内。NPL的工作已得出NPL二级标准放射性核素校准仪和Capintec校准仪的校正因子，这将显著提高性能。
