{"title":"用临床直线加速器测量27Al (γ， 2p) 25Na反应的产率和截面","authors":"David W. Anderson , Karl L. Prado","doi":"10.1016/0020-708X(85)90043-2","DOIUrl":null,"url":null,"abstract":"<div><p>A clinical electron linear accelerator was adapted for continuous energy selection and used to measure bremsstrahlung yield for the photonuclear reaction <sup>27</sup>Al (γ, 2p) <sup>25</sup>Na from 24.0 to 32.0-MeV in 0.25 MeV steps. A germanium detector was used to measure the number of photoproduct γ-rays emitted. The yield values were analyzed for photonuclear cross section using PHONUC II, a program especially adapted for use with yield data from thick-target bremsstrahlung. The cross section shows distinct resonance peaks at 26.3±0.3, 27.3±0.4 and 30.3±0.5 MeV. Possible theoretical origins of these resonances and applications of the reaction in accelerator energy calibration are discussed.</p></div>","PeriodicalId":22517,"journal":{"name":"The International journal of applied radiation and isotopes","volume":"36 9","pages":"Pages 721-725"},"PeriodicalIF":0.0000,"publicationDate":"1985-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0020-708X(85)90043-2","citationCount":"0","resultStr":"{\"title\":\"Measurement of yield and cross section for the 27Al (γ, 2p) 25Na reaction with a clinical linear accelerator\",\"authors\":\"David W. Anderson , Karl L. Prado\",\"doi\":\"10.1016/0020-708X(85)90043-2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A clinical electron linear accelerator was adapted for continuous energy selection and used to measure bremsstrahlung yield for the photonuclear reaction <sup>27</sup>Al (γ, 2p) <sup>25</sup>Na from 24.0 to 32.0-MeV in 0.25 MeV steps. A germanium detector was used to measure the number of photoproduct γ-rays emitted. The yield values were analyzed for photonuclear cross section using PHONUC II, a program especially adapted for use with yield data from thick-target bremsstrahlung. The cross section shows distinct resonance peaks at 26.3±0.3, 27.3±0.4 and 30.3±0.5 MeV. Possible theoretical origins of these resonances and applications of the reaction in accelerator energy calibration are discussed.</p></div>\",\"PeriodicalId\":22517,\"journal\":{\"name\":\"The International journal of applied radiation and isotopes\",\"volume\":\"36 9\",\"pages\":\"Pages 721-725\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1985-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0020-708X(85)90043-2\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The International journal of applied radiation and isotopes\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0020708X85900432\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The International journal of applied radiation and isotopes","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0020708X85900432","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Measurement of yield and cross section for the 27Al (γ, 2p) 25Na reaction with a clinical linear accelerator
A clinical electron linear accelerator was adapted for continuous energy selection and used to measure bremsstrahlung yield for the photonuclear reaction 27Al (γ, 2p) 25Na from 24.0 to 32.0-MeV in 0.25 MeV steps. A germanium detector was used to measure the number of photoproduct γ-rays emitted. The yield values were analyzed for photonuclear cross section using PHONUC II, a program especially adapted for use with yield data from thick-target bremsstrahlung. The cross section shows distinct resonance peaks at 26.3±0.3, 27.3±0.4 and 30.3±0.5 MeV. Possible theoretical origins of these resonances and applications of the reaction in accelerator energy calibration are discussed.
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