{"title":"中子源强度校准","authors":"E. Mcgarry, E. W. Boswell","doi":"10.6028/NBS.SP.250-18","DOIUrl":null,"url":null,"abstract":"The manganese sulfate (MnSO^) bath method of neutron source strength calibration at NBS is described and compared briefly with other MnSO^ bath techniques used internationally. The accuracy of source calibration is discussed from the viewpoints of international intercomparisons and practical limitations of the NBS system. In particular, there is discussion of uncertainties associated with system limitations and with corrections necessary for neutron capture in the source, capture of fast and thermal neutrons by competing reactions in the MnSO^ , capture of neutrons in the source container, and the correction for leakage of neutrons from the bath, which is 1.27 meters in diameter.","PeriodicalId":212922,"journal":{"name":"National Bureau of Standards, Special Publication","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"Neutron source strength calibrations\",\"authors\":\"E. Mcgarry, E. W. Boswell\",\"doi\":\"10.6028/NBS.SP.250-18\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The manganese sulfate (MnSO^) bath method of neutron source strength calibration at NBS is described and compared briefly with other MnSO^ bath techniques used internationally. The accuracy of source calibration is discussed from the viewpoints of international intercomparisons and practical limitations of the NBS system. In particular, there is discussion of uncertainties associated with system limitations and with corrections necessary for neutron capture in the source, capture of fast and thermal neutrons by competing reactions in the MnSO^ , capture of neutrons in the source container, and the correction for leakage of neutrons from the bath, which is 1.27 meters in diameter.\",\"PeriodicalId\":212922,\"journal\":{\"name\":\"National Bureau of Standards, Special Publication\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"National Bureau of Standards, Special Publication\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.6028/NBS.SP.250-18\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"National Bureau of Standards, Special Publication","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.6028/NBS.SP.250-18","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The manganese sulfate (MnSO^) bath method of neutron source strength calibration at NBS is described and compared briefly with other MnSO^ bath techniques used internationally. The accuracy of source calibration is discussed from the viewpoints of international intercomparisons and practical limitations of the NBS system. In particular, there is discussion of uncertainties associated with system limitations and with corrections necessary for neutron capture in the source, capture of fast and thermal neutrons by competing reactions in the MnSO^ , capture of neutrons in the source container, and the correction for leakage of neutrons from the bath, which is 1.27 meters in diameter.
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