Measurement of 90Sr in aqueous samples using liquid scintillation counting with full spectrum DPM method

被引：19

作者：

Lee, MH ^{[1
]}

Chung, KH ^{[1
]}

Choi, GK ^{[1
]}

Lee, CW ^{[1
]}

机构：

[1] Korea Atom Energy Res Inst, Nucl Environm Res Div, Taejon 305353, South Korea

来源：

APPLIED RADIATION AND ISOTOPES | 2002年 / 57卷 / 02期

关键词：

strontium-90; liquid scintillation counting; spectrum unfolding;

D O I：

10.1016/S0969-8043(02)00108-2

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Sr-90 activity was measured with the full spectrum DPM (FS-DPM) counting method after plotting the quench correction curves of Sr-90 and Y-90, and the FS-DPM method was applied to determine the Sr-90 in liquid waste samples. The optimum regions of Sr-90 and Y-90 were set for measuring Sr-90 with the dual label DPM (DL-DPM) method. The direct measurement of purified Sr-90 with spectrum unfolding techniques could overcome the disadvantages of the DL-DPM method. The activities of Sr-90 in the Sr-90/Y-90 standardized solution measured with the FS-DPM protocols were close to the true activity. The concentrations of Sr-90 in the liquid waste samples measured with the FS-DPM counting method were compared with those obtained with conventional methods. (C) 2002 Published by Elsevier Science Ltd.

引用

页码：257 / 263

页数：7

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