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【英文标准名称】:StandardPracticeforEvaluatingtheImagingPerformanceofSecurityX-RaySystems
【原文标准名称】:评估X射线安全设备的成像系统性能的标准实施规程
【标准号】:ASTMF792-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:F12.60
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:contrastsensitivity;effectiveatomicnumber;explosivedevice;explosives;IQI;IQIsensitivity;organicdifferentiation;organic/inorganicdifferentiation;radiationchamber;radiationmonitor;scatterblock;securitysystem;simplepenetration;spatia
【摘要】:ThispracticeappliestoandestablishesamethodtomeasuretheimagingperformanceofX-raysystemsusedforthescreeningforprohibiteditemssuchasweapons,explosivesandexplosivedevicesinbaggage,packages,cargoormail.ThispracticeisintendedforusebymanufacturerstoassessperformanceandbyevaluatorsofsecurityandcontrabandscreeningX-raysystemstoverifyperformance.ThispracticeisintendedtoestablishwhetheranX-raysystemmeetsthemanufacturer''sspecificationorifthesystem''sperformancehasdeterioratedovertime.Thispracticemaybeusedformanufacturingcontrol,specificationacceptance,serviceevaluationorregulatorystatutes.Thispracticeisintendedforuseatboththepointofmanufactureandwherethesystemisoperated.Thelatterincludeslocationssuchassecuritycheckpointsoftransportationterminals,nuclearpowerstations,correctionalinstitutions,corporatemailrooms,governmentofficesandothersecurityareas.ThemostsignificantattributesofthispracticearethedesignofastandardTestObjectandstandardmethodsfordeterminingtheperformancelevelsofthesystem.InscreeningobjectswithX-raysystemsvideoimagesaretheprimaryinputsprovidedtooperators.Thebetterthequalityoftheseimages,thebetterthepotentialperformanceoftheoperator.1.1ThispracticeappliestoallX-raybasedscreeningsystems,withtunnelaperturesupto1mwidex00D7;1mhigh,whetheritisaconventionalX-raysystemoranexplosivesdetectionsystem(EDS)thatprovidesaprojectionorprojection/scatterimageforanoperatortointerpret.1.2ThispracticeappliestoX-raysystemsusedforthescreeningforprohibiteditemssuchasweapons,explosives,andexplosivedevicesinbaggage,packages,cargo,ormail.1.3Thispracticeestablishesquantitativeandqualitativemethodsforevaluatingthesystems.Thispracticedoesnotestablishminimumperformancerequirementsforanyparticularapplication.1.4Thispracticereliesupontheuseofastandardtestobject(ASTMX-rayTestObject)todeterminetheapplicableperformancelevelsofthesystems.Thespecifictestobjectissubsequentlydescribedandreferredtointhisdocumentasthex201C;TestObject.x201D;1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N78
【国际标准分类号】:13_310
【页数】:6P.;A4
【正文语种】:英语