A new method for the measurement of the activity of high-concentration 226Ra in solution based on 222Rn production rate

IF 1.5 3区 化学 Q3 CHEMISTRY, ANALYTICAL
Chao Wang, Zixuan Bai, Enze Zhang, Wenliang Ma, Xiaosheng Zhao, Quan Tang
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Abstract

Traditional methods for measuring the 226Ra activity are time-consuming and the equipment is large and inconvenient to carry. This article proposes a new method for quickly measuring the activity of high-concentration 226Ra using RAD7, which is simple to operate, does not require chemical separation. The 222Rn production rate is obtained by measuring the 222Rn concentration in a nonequilibrium state using RAD7, and the 226Ra activity is yielded according to the law of radioactive decay. Verification experimental results demonstrate that, compared with the FD125 measurement method, the proposed method reduces the measurement time by 92%, with result deviation within 6%. Therefore, the proposed method can provide technical support for rapid measurement during the 226Ra production process.

Abstract Image

Abstract Image

基于 222Rn 生成率测量溶液中高浓度 226Ra 活性的新方法
传统的 226Ra 活性测量方法耗时长,设备体积大,携带不便。本文提出了一种利用 RAD7 快速测量高浓度 226Ra 活度的新方法,该方法操作简单,无需化学分离。利用 RAD7 测量非平衡状态下的 222Rn 浓度,即可得到 222Rn 的产生率,并根据放射性衰变规律得出 226Ra 的活度。验证实验结果表明,与 FD125 测量方法相比,拟议方法的测量时间缩短了 92%,结果偏差在 6% 以内。因此,建议的方法可以为 226Ra 生产过程中的快速测量提供技术支持。
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来源期刊
CiteScore
2.80
自引率
18.80%
发文量
504
审稿时长
2.2 months
期刊介绍: An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.
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