Preparation of background samples for accurate low-level measurements by liquid-scintillation spectrometry

被引：0
|
作者：
Kato, T [1 ]
Saito, K [1 ]
机构：
[1] Kyoto Univ, Radioisotope Res Ctr, Sakyo Ku, Kyoto 6068502, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2004年 / 524卷 / 1-3期
关键词：
liquid-scintillation; spectrometry; radioactivity;
D O I：
10.1016/j.nima.2004.02.008
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
For precise measurement of low-level beta-radioactivity by liquid-scintillation spectrometry, it is essential to prepare a so-called background sample, the count rate of which corresponds approximately to the background count rate of the source to be measured. A method for preparing such background samples is described in this paper. It has been successfully applied to the determination of C-14 radioactivity as low as 30 mBq with a relative uncertainty of less than 5%. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：208 / 214
页数：7
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