{"title":"用于精确中子计算的高阈值反应的单基团截面","authors":"E. F. Mitenkova, N. V. Novikov, E. V. Solovjeva","doi":"10.1007/s10512-023-01001-7","DOIUrl":null,"url":null,"abstract":"<div><div><p>Low-concentration nuclides – impurity nuclides – are increasingly in demand in radiochemistry for defining more precisely the neutronic characteristics of the medium. On use in precision calculations, impurity nuclides afford more accurate calculations. This article considers aspects of the calculation of one-group cross sections of the high-threshold reactions (<i>n</i>, <i>nt</i>), (<i>n</i>, 2<i>α</i>), (<i>n</i>, 2<i>p</i>), (<i>n</i>, <i>pα</i>), (<i>n</i>, <i>nd</i>), (<i>n</i>, <i>np</i>), (<i>n</i>, 2<i>nα</i>), and others in extended libraries and their influence on the nuclide composition of irradiated compositions in calculations using the MZK precision program. This program affords guaranteed accuracy of calculated nuclides, including impurities. A procedure is proposed for calculating one-group cross sections as applied to the spectrum in fast reactors.</p></div></div>","PeriodicalId":480,"journal":{"name":"Atomic Energy","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2023-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"One-Group Cross-Sections of High-Threshold Reactions for Precision Neutronics Calculations\",\"authors\":\"E. F. Mitenkova, N. V. Novikov, E. V. Solovjeva\",\"doi\":\"10.1007/s10512-023-01001-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div><p>Low-concentration nuclides – impurity nuclides – are increasingly in demand in radiochemistry for defining more precisely the neutronic characteristics of the medium. On use in precision calculations, impurity nuclides afford more accurate calculations. This article considers aspects of the calculation of one-group cross sections of the high-threshold reactions (<i>n</i>, <i>nt</i>), (<i>n</i>, 2<i>α</i>), (<i>n</i>, 2<i>p</i>), (<i>n</i>, <i>pα</i>), (<i>n</i>, <i>nd</i>), (<i>n</i>, <i>np</i>), (<i>n</i>, 2<i>nα</i>), and others in extended libraries and their influence on the nuclide composition of irradiated compositions in calculations using the MZK precision program. This program affords guaranteed accuracy of calculated nuclides, including impurities. A procedure is proposed for calculating one-group cross sections as applied to the spectrum in fast reactors.</p></div></div>\",\"PeriodicalId\":480,\"journal\":{\"name\":\"Atomic Energy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.4000,\"publicationDate\":\"2023-09-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Atomic Energy\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10512-023-01001-7\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"NUCLEAR SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Atomic Energy","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10512-023-01001-7","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}
One-Group Cross-Sections of High-Threshold Reactions for Precision Neutronics Calculations
Low-concentration nuclides – impurity nuclides – are increasingly in demand in radiochemistry for defining more precisely the neutronic characteristics of the medium. On use in precision calculations, impurity nuclides afford more accurate calculations. This article considers aspects of the calculation of one-group cross sections of the high-threshold reactions (n, nt), (n, 2α), (n, 2p), (n, pα), (n, nd), (n, np), (n, 2nα), and others in extended libraries and their influence on the nuclide composition of irradiated compositions in calculations using the MZK precision program. This program affords guaranteed accuracy of calculated nuclides, including impurities. A procedure is proposed for calculating one-group cross sections as applied to the spectrum in fast reactors.
期刊介绍:
Atomic Energy publishes papers and review articles dealing with the latest developments in the peaceful uses of atomic energy. Topics include nuclear chemistry and physics, plasma physics, accelerator characteristics, reactor economics and engineering, applications of isotopes, and radiation monitoring and safety.