Measurement of the 177Lu half-life

被引：25

作者：

Pomme, S. ^{[1
]}

Paepen, J. ^{[1
]}

Altzitzoglou, T. ^{[1
]}

Van Ammel, R. ^{[1
]}

Yeltepe, E. ^{[1
]}

机构：

[1] Commiss European Communities, Joint Res Ctr, Inst Reference Mat & Measurements, B-2440 Geel, Belgium

来源：

APPLIED RADIATION AND ISOTOPES | 2011年 / 69卷 / 09期

关键词：

Half-life; Lu-177; Radionuclide metrology; Nuclear data; Radiotherapy; RADIONUCLIDES; LIVES; STANDARDIZATION;

D O I：

10.1016/j.apradiso.2011.04.021

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The half-life of Lu-177 was measured by following the decay of sources with an ionisation chamber and with a liquid scintillation counter over a period of 85 and 42 days, respectively. The detector signals showed three major components: decay of Lu-177, decay of Lu-177m and the background signal. The half-life value, T-1/2(Lu-177)=6.6465 (50) d, was obtained by a least-squares fit of two exponential decay functions and a constant background to the experimental data. The data was corrected for decay during the measurements. Residuals of the fit and uncertainty budgets are presented in this paper. The result is in agreement with three out of seven previously published measurement results and the currently recommended value of 6.647 (4) d (Kondev, 2002). A new value of T-1/2(Lu-177)=6.6465 (32) d was obtained from a weighted mean of our results with the selected literature data. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1267 / 1273

页数：7

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