{"title":"用于条约核查的亚稳氙同位素探测器","authors":"J. Lopes, R. Morgado, C. Conde","doi":"10.1109/NSSMIC.2002.1239337","DOIUrl":null,"url":null,"abstract":"A system to selectively detect and quantify the xenon metastable isotopes /sup 131m/Xe, /sup 133m/Xe, /sup 133/Xe, and /sup 135/Xe has been designed, fabricated, and tested. The system combines high-resolution electron and gamma-ray spectrometry with coincidence/anticoincidence timing for signal selectivity and background rejection. By utilizing X-ray-fluorescence gating, backgrounds from other sources are expected to be reduced to the sub-becquerel level. Coincidence and anti-coincidence triggers are formed from the several individual detectors that comprise the system and used to identify K-shell conversion electrons and fluorescence X-rays from a /sup 109/Cd test source with good efficiencies and energy resolutions (20 keV for low-energy electrons, /spl sim/1.2 keV for the fluorescence X-rays, respectively).","PeriodicalId":385259,"journal":{"name":"2002 IEEE Nuclear Science Symposium Conference Record","volume":"47 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"A metastable xenon isotope detector for treaty verification\",\"authors\":\"J. Lopes, R. Morgado, C. Conde\",\"doi\":\"10.1109/NSSMIC.2002.1239337\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A system to selectively detect and quantify the xenon metastable isotopes /sup 131m/Xe, /sup 133m/Xe, /sup 133/Xe, and /sup 135/Xe has been designed, fabricated, and tested. The system combines high-resolution electron and gamma-ray spectrometry with coincidence/anticoincidence timing for signal selectivity and background rejection. By utilizing X-ray-fluorescence gating, backgrounds from other sources are expected to be reduced to the sub-becquerel level. Coincidence and anti-coincidence triggers are formed from the several individual detectors that comprise the system and used to identify K-shell conversion electrons and fluorescence X-rays from a /sup 109/Cd test source with good efficiencies and energy resolutions (20 keV for low-energy electrons, /spl sim/1.2 keV for the fluorescence X-rays, respectively).\",\"PeriodicalId\":385259,\"journal\":{\"name\":\"2002 IEEE Nuclear Science Symposium Conference Record\",\"volume\":\"47 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-11-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2002 IEEE Nuclear Science Symposium Conference Record\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/NSSMIC.2002.1239337\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2002 IEEE Nuclear Science Symposium Conference Record","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NSSMIC.2002.1239337","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A metastable xenon isotope detector for treaty verification
A system to selectively detect and quantify the xenon metastable isotopes /sup 131m/Xe, /sup 133m/Xe, /sup 133/Xe, and /sup 135/Xe has been designed, fabricated, and tested. The system combines high-resolution electron and gamma-ray spectrometry with coincidence/anticoincidence timing for signal selectivity and background rejection. By utilizing X-ray-fluorescence gating, backgrounds from other sources are expected to be reduced to the sub-becquerel level. Coincidence and anti-coincidence triggers are formed from the several individual detectors that comprise the system and used to identify K-shell conversion electrons and fluorescence X-rays from a /sup 109/Cd test source with good efficiencies and energy resolutions (20 keV for low-energy electrons, /spl sim/1.2 keV for the fluorescence X-rays, respectively).
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