{"title":"Unidimensional neutron shielding model for VARSKIN.","authors":"Zane Tucker, Charlotte Rose","doi":"10.1093/rpd/ncaf052","DOIUrl":null,"url":null,"abstract":"<p><p>A simple, one-dimensional neutron shielding model that can account for energy loss of neutrons traversing various materials (currently water and polyethylene, with a general framework for easy expansion to other materials) is developed and validated for use in the multipurpose dose calculation code VARSKIN+. Verification of this model is performed using Monte Carlo methods to provide an energy response comparison, and directly using empirically derived dose response curves for water shielding and a more realistic scenario of a source in a paraffin-filled barrel. Doses calculated using VARSKIN+ are within 20%-100% of the rigorous results, depending on complexity, and can be calculated within minutes, as opposed to hours for Monte Carlo results. This provides a good starting point for neutron shielding studies, before more computationally intensive tools are employed to calculate a more accurate dose value.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"622-632"},"PeriodicalIF":0.8000,"publicationDate":"2025-06-19","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/ncaf052","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
A simple, one-dimensional neutron shielding model that can account for energy loss of neutrons traversing various materials (currently water and polyethylene, with a general framework for easy expansion to other materials) is developed and validated for use in the multipurpose dose calculation code VARSKIN+. Verification of this model is performed using Monte Carlo methods to provide an energy response comparison, and directly using empirically derived dose response curves for water shielding and a more realistic scenario of a source in a paraffin-filled barrel. Doses calculated using VARSKIN+ are within 20%-100% of the rigorous results, depending on complexity, and can be calculated within minutes, as opposed to hours for Monte Carlo results. This provides a good starting point for neutron shielding studies, before more computationally intensive tools are employed to calculate a more accurate dose value.
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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