Activity standardization by liquid scintillation counting and half-life measurements of 90Y

被引：33

作者：

Kossert, K ^{[1
]}

Schrader, H ^{[1
]}

机构：

[1] Phys Tech Bundesanstalt, Dept 6 1, D-38116 Braunschweig, Germany

来源：

APPLIED RADIATION AND ISOTOPES | 2004年 / 60卷 / 05期

关键词：

liquid scintillation counting; CIEMAT/NIST method; ionization chamber; half-life measurement; Y-90; radionuclide impurity;

D O I：

10.1016/j.apradiso.2003.12.009

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Radioactive Y-90 was standardized by means of 47pibeta liquid scintillation efficiency tracing with a two-phototube counting system. The efficiencies of Y-90 and the tracer H-3 are related by the CIEMAT/NIST method. The dependence of the calculated efficiency on various shape factors and the importance of accurately measuring the radionuclide impurity of Sr-90 are discussed. The half-life of Y-90 was measured with improved accuracy by means of a liquid scintillation counting and a 4pi ionization chamber measuring system, and an average value T-1/2 = 64.053(20) h was found. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：741 / 749

页数：9

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