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1、CharacterizationofdomesticandforeignimageintensifiertubesEdwardJ.Bender,MichaelV.Wood,DanielJ.Hosek,SteveD.HartUSArmyRDECOMCERDECNightVision&ElectronicSensorsDirectorate,FortBelvoir,VA22060ABSTRACTThemarketformilitary-useGeneration2andGeneration3imageintensifier(I2)tubeshasbecometrulyglo
2、bal,withmajormanufacturersandcustomersspanningfivecontinents.ThisworldwidemarketisbecomingincreasinglyimportanttoU.S.manufacturers,withthemajorityofU.S.Armyintensifierfieldinghavingbeencompletedin2012.Giventhiskeenglobalcompetition,itisnotsurprisingthattheadvertisedtubeperformanceofagive
3、nsourceisoftendiscountedbycompetitors,andthecustomershavenoobjective"honestbroker"todeterminetherelativeaccuracyoftheseclaims.Tohelpfillthisvoid,theU.S.ArmyRDECOMCERDECNVESDrecentlymeasuredanumberofdomesticandforeignimageintensifiertubes,usingconsistenttestequipment/procedureswithwhichth
4、eU.S.industrymustcorrelateforArmytubedeliveries.Dataandanalysiswillbepresentedforthemajortubeparametersofluminancegain,equivalentbackgroundinput(EBI),signal-to-noiseratio(SNR),limitingresolution,halo,andmodulationtransferfunction(MTF).Thebright-lightresolutionprovidedbyvariousauto-gateda
5、ndnon-gatedtubeswillalsobeaddressed,sincethisareahasbeenanimportantfactorintheinternationalmarket.RDECOMCERDECNVESDmeasurementdatawillbecomparedtothecorrespondingmanufacturerspecificationswheneverpossible.DistributionA:Approvedforpublicrelease;distributionisunlimited.Keywords:Generation2
6、,Generation3,imageintensifiertubes,I2,luminancegain,EBI,SNR,resolution,halo,MTF,auto-gating,non-gated1.INTRODUCTIONTheproximity-focused(i.e.,“wafer”)imageintensifiertubehasservedasthepremiervisible/near-infrared(VNIR)mobilitysensoroftheU.S.militaryforthepastfortyyears.Themajorreasonsfori
7、tspopularityareenvironmentalrobustness,relativedesignsimplicity,frugalpowerconsumption,andlowcost.TheGeneration2(or“Gen2”)waferintensifiertubewasintroducedinthemid-1970sandwidelydeployeduntilitwassupplantedintheU.S.byGeneration3(or“Gen3”)devicesinthemid-1980s.Othercountri
