Half-life measurements of 87Rb by liquid scintillation counting

被引：40

作者：

Kossert, K ^{[1
]}

机构：

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

来源：

APPLIED RADIATION AND ISOTOPES | 2003年 / 59卷 / 5-6期

关键词：

liquid scintillation counting; CIEMAT/NIST method; half-life measurement; beta spectrum;

D O I：

10.1016/j.apradiso.2003.08.004

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The specific activity of natural Rb-87 was measured by means of 4pibeta liquid scintillation counting in a two-photomultiplier-tube spectrometer. H-3-efficiency tracing was used together with the CIEMAT/NIST method to obtain the detection efficiency. For this purpose a new parameterization of the shape factor for the third forbidden non-unique beta-transition was performed. The hygroscopic behaviour of the salts used for sample preparation was studied. The half-life of Rb-87 was found to be T-1/2 = 4.967(32) x 10(10) y. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：377 / 382

页数：6