{"title":"基于 222Rn 生成率测量溶液中高浓度 226Ra 活性的新方法","authors":"Chao Wang, Zixuan Bai, Enze Zhang, Wenliang Ma, Xiaosheng Zhao, Quan Tang","doi":"10.1007/s10967-024-09628-x","DOIUrl":null,"url":null,"abstract":"<div><p>Traditional methods for measuring the <sup>226</sup>Ra 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 <sup>226</sup>Ra using RAD7, which is simple to operate, does not require chemical separation. The <sup>222</sup>Rn production rate is obtained by measuring the <sup>222</sup>Rn concentration in a nonequilibrium state using RAD7, and the <sup>226</sup>Ra 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 <sup>226</sup>Ra production process.</p></div>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A new method for the measurement of the activity of high-concentration 226Ra in solution based on 222Rn production rate\",\"authors\":\"Chao Wang, Zixuan Bai, Enze Zhang, Wenliang Ma, Xiaosheng Zhao, Quan Tang\",\"doi\":\"10.1007/s10967-024-09628-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Traditional methods for measuring the <sup>226</sup>Ra 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 <sup>226</sup>Ra using RAD7, which is simple to operate, does not require chemical separation. The <sup>222</sup>Rn production rate is obtained by measuring the <sup>222</sup>Rn concentration in a nonequilibrium state using RAD7, and the <sup>226</sup>Ra 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 <sup>226</sup>Ra production process.</p></div>\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2024-07-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10967-024-09628-x\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10967-024-09628-x","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
A new method for the measurement of the activity of high-concentration 226Ra in solution based on 222Rn production rate
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.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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