{"title":"环形管道中中子衰减的一种预测方法","authors":"Jan Nilsson, Rolf Sandlin","doi":"10.1016/0369-5816(65)90089-X","DOIUrl":null,"url":null,"abstract":"<div><p>A calculational procedure for prediction of the attenuation of thermal and fast neutrons in straight air-filled annular ducts is described. The underlying theory, not presented here, takes into consideration arbitrary angular distributions of the source flux and treats both collided and uncollided contributions to the air gap flux. The procedure works also at short distances from the duct mouth.</p></div>","PeriodicalId":100973,"journal":{"name":"Nuclear Structural Engineering","volume":"2 3","pages":"Pages 323-326"},"PeriodicalIF":0.0000,"publicationDate":"1965-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-5816(65)90089-X","citationCount":"0","resultStr":"{\"title\":\"A method for prediction of the neutron attenuation in annular ducts\",\"authors\":\"Jan Nilsson, Rolf Sandlin\",\"doi\":\"10.1016/0369-5816(65)90089-X\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A calculational procedure for prediction of the attenuation of thermal and fast neutrons in straight air-filled annular ducts is described. The underlying theory, not presented here, takes into consideration arbitrary angular distributions of the source flux and treats both collided and uncollided contributions to the air gap flux. The procedure works also at short distances from the duct mouth.</p></div>\",\"PeriodicalId\":100973,\"journal\":{\"name\":\"Nuclear Structural Engineering\",\"volume\":\"2 3\",\"pages\":\"Pages 323-326\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1965-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0369-5816(65)90089-X\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Structural Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/036958166590089X\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Structural Engineering","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/036958166590089X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A method for prediction of the neutron attenuation in annular ducts
A calculational procedure for prediction of the attenuation of thermal and fast neutrons in straight air-filled annular ducts is described. The underlying theory, not presented here, takes into consideration arbitrary angular distributions of the source flux and treats both collided and uncollided contributions to the air gap flux. The procedure works also at short distances from the duct mouth.
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