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ID:31934144
大小:2.12 MB
页数:66页
时间:2019-01-29
《基于蒙特卡罗法的三源锥束x线ct散射和辐射剂量的分析-(1720)》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、ABSTRACTWedevelopedaCTsimulationsystemSimProjbasedontheMonteCarloopen-sourcesoftwareEGSnrc,whichcanbeeasilyusedfordesigningCTsystemgeometryondemand.Westudiedtherelationshipbetweencone-angleoftheX-raybeamandthemagnitudeofscatteredradiation,andanalyzedsc
2、atteringanditsconsequenceinthereconstructedimages.Ithasbeenfoundthat,intheresearchofdose,thetriple-sourceCThasthesamelevelwiththeordinarysingle-sourceCTscanner,thoughthreeimagingsubsystemsareworkingatthesametime.Theresultsofourworkarehelpfulforthedevel
3、opmentofthetriple-sourceCTandalsolaidthefoundationforfuturesimulationresearch.Keywords:MonteCarlo,triple-sourceCT,scatteredradiation,radiationdose第IV页万方数据目录目录摘要............................................................................................
4、.........................................................................IABSTRACT.........................................................................................................................................................III第一章绪论.........
5、..................................................................................................................................................91.1课题背景..................................................................................................
6、....................................................91.1.1CT的发展趋势.................................................................................................................................91.1.2多源CT的特点.............................................
7、.................................................................................101.1.3散射和剂量...................................................................................................................................121.1.4蒙特卡罗仿真法..............
8、.............................................................................................................141.2课题概述......................................................................................................................
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