航空伽玛能谱测量大气氡校正方法分析word格式论文.docx

下载文档 降价啦

10
0
约7.43万字
约 106页
2018-05-18 发布于上海
举报
版权申诉
保障服务

航空伽玛能谱测量大气氡校正方法分析word格式论文.docx

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。

航空伽玛能谱测量大气氡校正方法分析word格式论文

height-attenuationcoefficientswithoutatmosphericradoninfluence.ThecorrectionfactoristhekeyofAtmosphericradoncorrection,anditdecidestheprecisionofradonbackgroundestimation.AuthorconstructstherelationbetweencorrectionfactorofUcomponentandcorrectionfactorofatmosphericradoncomponent.Combinewiththeheight-attenuationcoefficientsofdifferentenergy windows,Autherdesignsthecorrectionfactorscalibrationbystandardsaturationmodelmeasurement.Thecalibrationtechnologyavoidsthepossibleerrorsof correctionfactorcalibrationwhichuseofmatrixcomputationsandmathematicalfittingbasedonspectrumshape.Furthermore,thecoefficientcalibrationmethodiseasiertoimplementandmakingcalibrationmoreefficient.Insteadofnumericalanalysisandexperimentalmeasurement,authorhasstudytheradoncorrectionmethodofairbornegammarayspectrometryusingtheMonteCarlomethod.Inordertoimprovesimulationefficiency,thetheMonteCarlosimulationprocesshasbeendecomposed.Thesimulationprocessisdescribedas below:(1)Thecharacteristicpeakintrinsicdetectingefficiencyofdifferentcharacteristicgamma-raydetectorhadbeensimulated.Forthesakeofdescribetherelationbetweenthereferencegama-rayandcharacteristic peakfull-energy-peakintrinsicdetectingefficiency,authordefinetheconceptionofrelativecharacteristicpeakintrinsicdetectingefficiencyaboutUandThcomponents.(2)Thefluxratioof referencegama-raytocharacteristicgama-rayofatmosphericradoncomponent,uraniumandthoriumcomponentshadbeensimulated.(3)UsingMonteCarlomethod,authorhadsimulatedheight-attenuationcoefficientsandcorrectionfactorsindifferentairdensity.Finally,thecorrectionfactorshadbeencalculatedbystandardsaturationmodelmeasurementtechnologyandMonteCarlosimulation.Inaddition,errorinthecorrectionfactorcalibrationhasbeenanalysis.UsingthetwosetsofcorrectionfactorswhichcalibratedbystandardsaturationmodelmeasurementtechnologyandMonteCarlosimulation,theradonbackgroundofspectrummeasuredindifferentheighthadbeenestimated.Comparingtheheight-attenuationcoefficientscaculatedbynumericalanalysis,therelativeerrorofthecorre