{"title":"Experimental testing and simulation analysis of radiation shielding performance of 90SR-90Y radiation sources using different materials.","authors":"Yi Han, Xiaomiao Chi, Qinjian Cao, Liye Liu, Yuchen Liu, Faguo Chen","doi":"10.1093/rpd/ncaf077","DOIUrl":null,"url":null,"abstract":"<p><p>The study investigated the maximum range of 90Sr-90Y sources in different shielding materials and assessed β-directional dose equivalent rates and γ ambient dose equivalent rates across varying thicknesses of shielding. Results indicated: (1) Significant differences in 90Sr-90Y source ranges among materials, with the shortest β-ray range observed in tungsten alloy (0.00 to 0.50 mm) and high-purity lead (0.5 to 1.0 mm). (2) Generally, there was good agreement between experimental and simulation data, except at a thickness of 0.5 mm for high-purity lead, where a deviation of 51.4 per cent in β-directional dose rates was observed, likely due to errors in the lead cross-section data. (3) Comparative analysis demonstrated that combinations such as \"304 + W\" or \"304 + Pb\" offer enhanced shielding effectiveness against 90Sr-90Y sources. This study provides valuable insights for selecting β-radiation shielding materials and structures.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"775-785"},"PeriodicalIF":0.7000,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiation protection dosimetry","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1093/rpd/ncaf077","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
The study investigated the maximum range of 90Sr-90Y sources in different shielding materials and assessed β-directional dose equivalent rates and γ ambient dose equivalent rates across varying thicknesses of shielding. Results indicated: (1) Significant differences in 90Sr-90Y source ranges among materials, with the shortest β-ray range observed in tungsten alloy (0.00 to 0.50 mm) and high-purity lead (0.5 to 1.0 mm). (2) Generally, there was good agreement between experimental and simulation data, except at a thickness of 0.5 mm for high-purity lead, where a deviation of 51.4 per cent in β-directional dose rates was observed, likely due to errors in the lead cross-section data. (3) Comparative analysis demonstrated that combinations such as "304 + W" or "304 + Pb" offer enhanced shielding effectiveness against 90Sr-90Y sources. This study provides valuable insights for selecting β-radiation shielding materials and structures.
期刊介绍：
Radiation Protection Dosimetry covers all aspects of personal and environmental dosimetry and monitoring, for both ionising and non-ionising radiations. This includes biological aspects, physical concepts, biophysical dosimetry, external and internal personal dosimetry and monitoring, environmental and workplace monitoring, accident dosimetry, and dosimetry related to the protection of patients. Particular emphasis is placed on papers covering the fundamentals of dosimetry; units, radiation quantities and conversion factors. Papers covering archaeological dating are included only if the fundamental measurement method or technique, such as thermoluminescence, has direct application to personal dosimetry measurements. Papers covering the dosimetric aspects of radon or other naturally occurring radioactive materials and low level radiation are included. Animal experiments and ecological sample measurements are not included unless there is a significant relevant content reason.
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