{"title":"Nuclear data uncertainty in 14C production from oxygen isotopes","authors":"Priti Kanth, Ivan Kodeli, Mark R. Gilbert","doi":"10.1016/j.fusengdes.2024.114708","DOIUrl":null,"url":null,"abstract":"<div><div><sup>14</sup>C is produced from the reactions of O isotopes with high-energy neutrons. Due to its long half-life, high residence time in the environment and ease of assimilation into living matter, the production of <sup>14</sup>C is a major concern when planning for the transportation and disposal of radioactive materials. Observed variation in calculated <sup>14</sup>C production from O isotopes using different data libraries causes uncertainties that are demonstrated to affect predictions of radioactive waste arisings and thus could impact disposal and recycling recommendations. There are also significant inconsistencies in the uncertainty data and co-variance matrices given in the nuclear data files for O isotopes.</div></div>","PeriodicalId":55133,"journal":{"name":"Fusion Engineering and Design","volume":"210 ","pages":"Article 114708"},"PeriodicalIF":1.9000,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fusion Engineering and Design","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0920379624005593","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
14C is produced from the reactions of O isotopes with high-energy neutrons. Due to its long half-life, high residence time in the environment and ease of assimilation into living matter, the production of 14C is a major concern when planning for the transportation and disposal of radioactive materials. Observed variation in calculated 14C production from O isotopes using different data libraries causes uncertainties that are demonstrated to affect predictions of radioactive waste arisings and thus could impact disposal and recycling recommendations. There are also significant inconsistencies in the uncertainty data and co-variance matrices given in the nuclear data files for O isotopes.
期刊介绍:
The journal accepts papers about experiments (both plasma and technology), theory, models, methods, and designs in areas relating to technology, engineering, and applied science aspects of magnetic and inertial fusion energy. Specific areas of interest include: MFE and IFE design studies for experiments and reactors; fusion nuclear technologies and materials, including blankets and shields; analysis of reactor plasmas; plasma heating, fuelling, and vacuum systems; drivers, targets, and special technologies for IFE, controls and diagnostics; fuel cycle analysis and tritium reprocessing and handling; operations and remote maintenance of reactors; safety, decommissioning, and waste management; economic and environmental analysis of components and systems.