W. Trautmann, C. Lauterbach, J. de Boer, W. Dünnweber, G. Graw, W. Hamann, W. Hering, H. Puchta
{"title":"连续伽玛射线能谱圆偏振的束内测量","authors":"W. Trautmann, C. Lauterbach, J. de Boer, W. Dünnweber, G. Graw, W. Hamann, W. Hering, H. Puchta","doi":"10.1016/0029-554X(81)90746-1","DOIUrl":null,"url":null,"abstract":"<div><p>A forward-scattering and a transmission-type polarimeter have been constructed to measure the circular polarization of γ-rays in heavy-ion reactions. The polarimeters were designed to provide large counting efficiencies necessary for particle-γ coincidence experiments. A doubly symmetric detector arrangement was used in-beam to minimize systematic errors. The polarization sensitivity of the forward-scattering polarimeter was determined from Monte Carlo calculations and by using a <sup>90</sup>Sr–<sup>90</sup>Y source of polarized bremsstrahlung. The applicability of the transmission-type polarimeter in the case of continuous γ-ray spectra is discussed.</p></div>","PeriodicalId":100971,"journal":{"name":"Nuclear Instruments and Methods","volume":"184 2","pages":"Pages 449-460"},"PeriodicalIF":0.0000,"publicationDate":"1981-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0029-554X(81)90746-1","citationCount":"7","resultStr":"{\"title\":\"In-beam measurement of the circular polarization of continuous gamma-ray spectra\",\"authors\":\"W. Trautmann, C. Lauterbach, J. de Boer, W. Dünnweber, G. Graw, W. Hamann, W. Hering, H. Puchta\",\"doi\":\"10.1016/0029-554X(81)90746-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A forward-scattering and a transmission-type polarimeter have been constructed to measure the circular polarization of γ-rays in heavy-ion reactions. The polarimeters were designed to provide large counting efficiencies necessary for particle-γ coincidence experiments. A doubly symmetric detector arrangement was used in-beam to minimize systematic errors. The polarization sensitivity of the forward-scattering polarimeter was determined from Monte Carlo calculations and by using a <sup>90</sup>Sr–<sup>90</sup>Y source of polarized bremsstrahlung. The applicability of the transmission-type polarimeter in the case of continuous γ-ray spectra is discussed.</p></div>\",\"PeriodicalId\":100971,\"journal\":{\"name\":\"Nuclear Instruments and Methods\",\"volume\":\"184 2\",\"pages\":\"Pages 449-460\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1981-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0029-554X(81)90746-1\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Instruments and Methods\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0029554X81907461\",\"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 and Methods","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0029554X81907461","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
In-beam measurement of the circular polarization of continuous gamma-ray spectra
A forward-scattering and a transmission-type polarimeter have been constructed to measure the circular polarization of γ-rays in heavy-ion reactions. The polarimeters were designed to provide large counting efficiencies necessary for particle-γ coincidence experiments. A doubly symmetric detector arrangement was used in-beam to minimize systematic errors. The polarization sensitivity of the forward-scattering polarimeter was determined from Monte Carlo calculations and by using a 90Sr–90Y source of polarized bremsstrahlung. The applicability of the transmission-type polarimeter in the case of continuous γ-ray spectra is discussed.
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