Designation:E1936−03(Reapproved2011)´2StandardReferenceRadiographforEvaluatingthePerformanceofRadiographicDigitizationSystems1ThisstandardisissuedunderthefixeddesignationE1936;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—ReferencesourceinformationwasupdatededitoriallyinNovember2014.ε2NOTE—ReferenceradiographsourceinformationwasupdatededitoriallyinOctober2015.1.Scope1.1Thisreferenceradiographcoversaseriesoftesttargetssuitableforevaluating,quantifying,anddocumentingperfor-manceparametersoftheradiographicdigitizationprocessortheelectronicimagereconstructionprocess,orboth.Thisreferenceradiographcanbeusedforvisualandelectronicanalysisofdigitizationsystems.Thisisthefirstofthreerelatedstandards.Subsequentstandardswillprovideguidanceontheuseofthetesttargetsandrecommendedsystemperformancelevels1.2Thisreferenceradiographprovidesaseriesoftesttargetstoprovideavehiclefortheevaluationofspatialresolution,densitycontrastsensitivity,dynamicrange,andspatiallinearityaswellasotheraspectsofadigitizationsystem.Thetesttargetsaresuitableforevaluatingadigitiza-tionsystemwithaspatialresolutiondownto;1/1000in.(25micrometres(µ))adensitycontrastsensitivitydownto0.02opticaldensity(OD),adensityrangeof0.5to4.5OD,andafilmsizecapacityof14in.(355mm)wideby17in.(431mm)long.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard,withtheexceptionofthespatialresolutiontargets(6.2and6.7)whicharestatedinSIunits.1.4Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E1079PracticeforCalibrationofTransmissionDensitom-etersE1254GuideforStorageofRadiographsandUnexp...
