{"title":"摄影弯曲晶体伽马光谱仪","authors":"Olof Beckman","doi":"10.1016/0369-643X(58)90045-8","DOIUrl":null,"url":null,"abstract":"<div><p>A 1-meter bent crystal gamma-ray spectrometer is described. The gamma lines are registered on Ilford G5 nuclear emulsions. By counting with a microscope the electron tracks forming a line, it is possible to determine gamma intensities. Corrections have to be made for emulsion efficiency, crystal reflectivity and the geometry of the spectrometer. The accuracy of this method is controlled by the measurements of some known lines in Ta<sup>182</sup>. In addition the energies and intensities of two lines in Sm<sup>153</sup> are given: 69.66±0.02 keV and 103.18±0.04 keV; intensity ratio 9 to 100.</p></div>","PeriodicalId":100970,"journal":{"name":"Nuclear Instruments","volume":"3 1","pages":"Pages 27-32"},"PeriodicalIF":0.0000,"publicationDate":"1958-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-643X(58)90045-8","citationCount":"8","resultStr":"{\"title\":\"Photographic bent crystal gamma spectrometer\",\"authors\":\"Olof Beckman\",\"doi\":\"10.1016/0369-643X(58)90045-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A 1-meter bent crystal gamma-ray spectrometer is described. The gamma lines are registered on Ilford G5 nuclear emulsions. By counting with a microscope the electron tracks forming a line, it is possible to determine gamma intensities. Corrections have to be made for emulsion efficiency, crystal reflectivity and the geometry of the spectrometer. The accuracy of this method is controlled by the measurements of some known lines in Ta<sup>182</sup>. In addition the energies and intensities of two lines in Sm<sup>153</sup> are given: 69.66±0.02 keV and 103.18±0.04 keV; intensity ratio 9 to 100.</p></div>\",\"PeriodicalId\":100970,\"journal\":{\"name\":\"Nuclear Instruments\",\"volume\":\"3 1\",\"pages\":\"Pages 27-32\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1958-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0369-643X(58)90045-8\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Instruments\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0369643X58900458\",\"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 Instruments","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0369643X58900458","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A 1-meter bent crystal gamma-ray spectrometer is described. The gamma lines are registered on Ilford G5 nuclear emulsions. By counting with a microscope the electron tracks forming a line, it is possible to determine gamma intensities. Corrections have to be made for emulsion efficiency, crystal reflectivity and the geometry of the spectrometer. The accuracy of this method is controlled by the measurements of some known lines in Ta182. In addition the energies and intensities of two lines in Sm153 are given: 69.66±0.02 keV and 103.18±0.04 keV; intensity ratio 9 to 100.
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