(60)钴在射线数字成像检测系统中的应用

60,,,(,100084):(DR)60,,,,,,:;;:TG115.28:A:100026656(2002)0720292203APPLICATIONOF60CoSOURCETOINDUSTRIALDIGITALRADIOGRAPHICNONDESTRUCTIVETESTINGSYSTEMTONGJian2min,ZHOULi2ye,LIYi2qiang,GUBo2hua(InstituteofNuclearEnergyTechnology,TsinghuaUniversity,Beijing100084,China)Abstract:AnindustrialDR(digitalradiography)nondestructivetestingsystemisdescribed,inwhich60Cogamma2raysourceisused.Theworkpieceinspectedislaidonadragflatwhichisrunningthroughsectorshadowofemissiongamma2rayinuniformvelocity.Thetransmittinggamma2rayisdetectedbygas2pressurizedionchamberarray.ThesignalsareprocessedbyPCtoformtwodimensionalperspectiveimageoftheworkpiece.Thentheinternaldefectsoftheworkpiececanbedetected.Thesystemhastheadvantagesoflargespacepenetrating,highperformanceofimagequalityandtechni2calproperties,lowcostforrunningandmaintenance,simpleoperationandhighsafetyandreliability.Soithasawideap2plicationprospect.Keywords:radiography;Radiographicinspectionsystem;Digitizedimaging,2,(DR),60DR(),:2002201218,X,,20cm()160DR1,A/D,29224720027NDTVol.24No.7July2002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.11.160[1]601.1111.1TBq(30300Ci),60,,,111731.332MeV,5.27a()1.2,,;,1.3,1mm,1282mm10mm,,,,[2]6041.8%1.4,,,,1.5100kHz,16bits,1.6MicrosoftVisualC++,,,,1.7,,,090,,12m,030mm/s,2%2,X,DR(IQI):(CI):(SP):()::392:60©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,1(602.591012Bq)2212160DR/%(10cm)/%(10cm)/%(10cm)mmmm/s0.441.22.0210100002023(1),IQI10cm,X,,,,,,(2),,,,,,,(3)4m2,,,,(4)60,,,,,,,,(5),,,CT,()4,,2212;3(,1mm);4;5(3456(297)492:60©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,,,,,[1],,(),6,,,+,,,,,7(1)Cr16Ni6,Cr16Ni6,,,(),,(2)Cr16Ni6Cr16Ni6,(3)Cr16Ni6,(4)(1)3,,(5)Cr16Ni6,,,(6)Cr16Ni6,,,(7)Cr16Ni6,,Cr16Ni6,,,,8Cr16Ni6,,,,,,,,,,,,:[1].[R].:(),1999.(294));6(1mm)560,DR,,:[1],,,.[J].,1998,18(2):135-137.[2],,.[M].:,1997.792:Cr16Ni6©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.