Optimization of a water-intake system for monitoring radionuclides in aquatic environments

IF 2.6 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Nuclear Engineering and Technology Pub Date : 2025-04-18 DOI:10.1016/j.net.2025.103656

Dayeong Lee , Seongjin Maeng , Sang Hoon Lee

{"title":"Optimization of a water-intake system for monitoring radionuclides in aquatic environments","authors":"Dayeong Lee , Seongjin Maeng , Sang Hoon Lee","doi":"10.1016/j.net.2025.103656","DOIUrl":null,"url":null,"abstract":"<div><div>We designed and characterized a water-intake radiation monitoring system using a 3\" × 3″ NaI(Tl) detector for real-time monitoring of, for example, nuclear power plant radioactive effluents. The MCNP6 code was used to determine the optimized container size and detector position for homogeneous <sup>131</sup>I and <sup>137</sup>Cs volumetric sources. Based on the simulation results, the dimensions of the monitoring system were determined. The simulation model was initially verified by comparison with the measurement results of a paper filter certified reference materials in water. Subsequently, it was further validated by comparison with the detection efficiency for <sup>40</sup>K in a KCl volumetric source measurement experiment, which confirmed that the detection efficiency well matched experimental data for volumetric sources. Using the validated simulation model, the detection efficiency of <sup>131</sup>I and <sup>137</sup>Cs volumetric sources in a water-filled container was assessed. To consider background radioactivity, three types of water samples—freshwater, brackish water, and seawater—were experimentally measured. Based on these measurements, the minimum detectable activity for <sup>131</sup>I and <sup>137</sup>Cs volumetric sources was determined for each of the three water sample types.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"57 9","pages":"Article 103656"},"PeriodicalIF":2.6000,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Engineering and Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1738573325002244","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

We designed and characterized a water-intake radiation monitoring system using a 3" × 3″ NaI(Tl) detector for real-time monitoring of, for example, nuclear power plant radioactive effluents. The MCNP6 code was used to determine the optimized container size and detector position for homogeneous ¹³¹I and ¹³⁷Cs volumetric sources. Based on the simulation results, the dimensions of the monitoring system were determined. The simulation model was initially verified by comparison with the measurement results of a paper filter certified reference materials in water. Subsequently, it was further validated by comparison with the detection efficiency for ⁴⁰K in a KCl volumetric source measurement experiment, which confirmed that the detection efficiency well matched experimental data for volumetric sources. Using the validated simulation model, the detection efficiency of ¹³¹I and ¹³⁷Cs volumetric sources in a water-filled container was assessed. To consider background radioactivity, three types of water samples—freshwater, brackish water, and seawater—were experimentally measured. Based on these measurements, the minimum detectable activity for ¹³¹I and ¹³⁷Cs volumetric sources was determined for each of the three water sample types.

查看原文本刊更多论文

我们设计并鉴定了一种使用 3" × 3″ NaI(Tl) 探测器的进水辐射监测系统，用于实时监测核电厂放射性流出物等。MCNP6 代码用于确定均质 131I 和 137Cs 容积源的优化容器尺寸和探测器位置。根据模拟结果，确定了监测系统的尺寸。通过与水中纸质过滤器认证参考材料的测量结果进行比较，初步验证了模拟模型。随后，通过与氯化钾体积源测量实验中 40K 的检测效率进行比较，进一步验证了模拟模型，结果证实检测效率与体积源的实验数据完全吻合。利用经过验证的模拟模型，评估了装水容器中 131I 和 137Cs 体积源的探测效率。为了考虑本底辐射，对淡水、苦咸水和海水三种水样进行了实验测量。根据这些测量结果，确定了 131I 和 137Cs 体积源在这三种水样中的最低可探测活度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Nuclear Engineering and Technology 工程技术-核科学技术

CiteScore

4.80

自引率

7.40%

发文量

431

审稿时长

3.5 months

期刊介绍： Nuclear Engineering and Technology (NET), an international journal of the Korean Nuclear Society (KNS), publishes peer-reviewed papers on original research, ideas and developments in all areas of the field of nuclear science and technology. NET bimonthly publishes original articles, reviews, and technical notes. The journal is listed in the Science Citation Index Expanded (SCIE) of Thomson Reuters. NET covers all fields for peaceful utilization of nuclear energy and radiation as follows: 1) Reactor Physics 2) Thermal Hydraulics 3) Nuclear Safety 4) Nuclear I&C 5) Nuclear Physics, Fusion, and Laser Technology 6) Nuclear Fuel Cycle and Radioactive Waste Management 7) Nuclear Fuel and Reactor Materials 8) Radiation Application 9) Radiation Protection 10) Nuclear Structural Analysis and Plant Management & Maintenance 11) Nuclear Policy, Economics, and Human Resource Development