DETERMINATION OF SR-89 AND SR-90 RADIOACTIVE CONCENTRATIONS FROM LEAST-SQUARES FITS TO THE GROWTH DECAY CURVES

被引：7

作者：

BAEZA, A

DELRIO, LM

MIRO, C

PANIAGUA, JM

机构：

[1] Departamento de Física, Univesidad de Extremadura, Ctra. de Trujillo s/n

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1992年 / 312卷 / 1-2期

关键词：

D O I：

10.1016/0168-9002(92)90153-U

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A method has been developed for determining the radioactive concentration of Sr-89 and Sr-90 in samples, using the Y-90 growth curve and the Sr-89 and Sr-90 decay curves. Experimental data are obtained by successive counts of the sample activity as measured by a gas-flow proportional counter. Least squares fits are then made to the theoretical curves. A discussion is given of the number of measurements needed and the most suitable dates for making them relative to the radiochemical separation date of the strontium.

引用

页码：198 / 200

页数：3