{"title":"用中子活化分析法评价火成岩中的氟","authors":"A. M. Abdelbagi","doi":"10.4236/WJNST.2016.63015","DOIUrl":null,"url":null,"abstract":"The main goal of the current study was to determine the fluorine in the \nrock samples coal (SARM-18, SARM-19, and SARM-20), opal glass NBS91 and \nphosphate rock NBS694 using neutron activation analysis. Neutrons energy of 14 \nMeV used for irradiation was produced by bombardment of a water-cooled titanium \ntri-tide target with a beam of deuterons accelerated to a potential of 350 KV to develop a neutron flux (108 n⋅cm-2⋅s-1) \non the sample at the neutron generator \nin the ECN (Netherlands Energy Research Foundation) Petten. This new \napproach contributes to the existing knowledge \nof fluorine measurement by the coincidence channels investigation of the \npositron energy with respect to decay time for each radionuclide \nelement. The present study was designed to determine the fluorine by fast \nneutron through the reaction of F19 (n, 2n) F18. \nInterference was treated by irradiating the standard of these elements and \nreasonable selection of the decay time between the end of irradiation and \nbeginning of counting time. The results of this method indicate that the \nconcentration of fluorine is agreed fairly with literatures.","PeriodicalId":61566,"journal":{"name":"核科学与技术国际期刊(英文)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2016-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Fluorine Assessment of Igneous Rocks by Neutron Activation Analysis\",\"authors\":\"A. M. Abdelbagi\",\"doi\":\"10.4236/WJNST.2016.63015\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The main goal of the current study was to determine the fluorine in the \\nrock samples coal (SARM-18, SARM-19, and SARM-20), opal glass NBS91 and \\nphosphate rock NBS694 using neutron activation analysis. Neutrons energy of 14 \\nMeV used for irradiation was produced by bombardment of a water-cooled titanium \\ntri-tide target with a beam of deuterons accelerated to a potential of 350 KV to develop a neutron flux (108 n⋅cm-2⋅s-1) \\non the sample at the neutron generator \\nin the ECN (Netherlands Energy Research Foundation) Petten. This new \\napproach contributes to the existing knowledge \\nof fluorine measurement by the coincidence channels investigation of the \\npositron energy with respect to decay time for each radionuclide \\nelement. The present study was designed to determine the fluorine by fast \\nneutron through the reaction of F19 (n, 2n) F18. \\nInterference was treated by irradiating the standard of these elements and \\nreasonable selection of the decay time between the end of irradiation and \\nbeginning of counting time. The results of this method indicate that the \\nconcentration of fluorine is agreed fairly with literatures.\",\"PeriodicalId\":61566,\"journal\":{\"name\":\"核科学与技术国际期刊(英文)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-07-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"核科学与技术国际期刊(英文)\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://doi.org/10.4236/WJNST.2016.63015\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"核科学与技术国际期刊(英文)","FirstCategoryId":"1087","ListUrlMain":"https://doi.org/10.4236/WJNST.2016.63015","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Fluorine Assessment of Igneous Rocks by Neutron Activation Analysis
The main goal of the current study was to determine the fluorine in the
rock samples coal (SARM-18, SARM-19, and SARM-20), opal glass NBS91 and
phosphate rock NBS694 using neutron activation analysis. Neutrons energy of 14
MeV used for irradiation was produced by bombardment of a water-cooled titanium
tri-tide target with a beam of deuterons accelerated to a potential of 350 KV to develop a neutron flux (108 n⋅cm-2⋅s-1)
on the sample at the neutron generator
in the ECN (Netherlands Energy Research Foundation) Petten. This new
approach contributes to the existing knowledge
of fluorine measurement by the coincidence channels investigation of the
positron energy with respect to decay time for each radionuclide
element. The present study was designed to determine the fluorine by fast
neutron through the reaction of F19 (n, 2n) F18.
Interference was treated by irradiating the standard of these elements and
reasonable selection of the decay time between the end of irradiation and
beginning of counting time. The results of this method indicate that the
concentration of fluorine is agreed fairly with literatures.