通过TDCR效率计算技术对³³P进行标准化。
The standardization of 33P by the TDCR efficiency calculation technique.
作者信息
Simpson B R S, Morris W M
机构信息
Radioactivity Standards Laboratory, CSIR-NML, 15 Lower Hope Road, Rosebank, Cape Town 7700, South Africa.
出版信息
Appl Radiat Isot. 2004 Feb-Apr;60(2-4):465-8. doi: 10.1016/j.apradiso.2003.11.060.
The activity of the pure beta-emitter phosphorus-33 (33P) has been directly determined by the triple-to-double coincidence ratio (TDCR) efficiency calculation technique, thus extending the number of radionuclides that have been standardized by this simple, non-extrapolation liquid scintillation (LS) method. The major advantage of inherently accounting for chemical quenching without the need for additional external measurements is demonstrated. The 33P solution activity concentration was verified by tracing with cobalt-60, utilizing 4pi(LS)beta-gamma coincidence counting. Agreement to within 1.2% confirmed the reliability of the TDCR measurements.
纯β发射体磷-33（³³P）的活度已通过三对双符合比（TDCR）效率计算技术直接测定，从而扩展了通过这种简单的、非外推的液体闪烁（LS）方法实现标准化的放射性核素数量。该方法展示了其内在地考虑化学猝灭而无需额外外部测量的主要优势。³³P溶液活度浓度通过用钴-60进行示踪并利用4π（LS）β-γ符合计数进行了验证。在1.2%范围内的一致性证实了TDCR测量的可靠性。
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