Standardisation and precise determination of the half-life of 44Sc

被引：22

作者：

Garcia-Torano, E. ^{[1
]}

Peyres, V. ^{[1
]}

Roteta, M. ^{[1
]}

Sanchez-Cabezudo, A. I. ^{[1
]}

Romero, E. ^{[2
]}

Martinez Ortega, A. ^{[2
]}

机构：

[1] CIEMAT, Lab Metrol Radiac Ionizantes, Avda Complutense 40, E-28040 Madrid, Spain

[2] CIEMAT, Unidad Aplicac Biomed & Farmacocinet, Avda Complutense 40, E-28040 Madrid, Spain

来源：

APPLIED RADIATION AND ISOTOPES | 2016年 / 109卷

关键词：

Sc-44; Half-life; Standardisation; Positron emitters; RADIONUCLIDE; SCANDIUM;

D O I：

10.1016/j.apradiso.2015.12.007

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The half-life of the positron-emitter Sc-44 has been determined by following the decay rate with two measurement systems; an Ionisation Chamber and a HPGe detector. The combination of seven results gives a value of T-1/2=4.042 (25) h, about 2% higher than the recommended value of T-1/2=3.97 (4) h (Browne, 2011) and with a lower uncertainty. This radionuclide has also been standardised by coincidence counting, and liquid scintillation counting techniques. A Ti-44/Sc-44 generator developed at CIEMAT was used to obtain the Sc-44 solutions used in all measurements. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：314 / 318

页数：5

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