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【英文标准名称】:StandardGuideforSelectionandCalibrationofDosimetrySystemsforRadiationProcessing
【原文标准名称】:辐射处理用剂量测定体系的选择和校准的标准指
【标准号】:ASTMISO/ASTM51261-2002
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:E10.01
【标准类型】:(ISO/ASTM)
【标准水平】:()
【中文主题词】:
【英文主题词】:absorbeddose;calibrationfacility;dosetraceability;dosimeter;dosimeterselection;dosimetercalibration;dosimetrysystem;electronbeam;gammaray;ionizingradiation;primary-standarddosimeter;qualityassurance;radiationprocessing;reference-s
【摘要】:4.1Ionizingradiationisusedtoproducevariousdesiredeffectsinproducts.Examplesincludethesterilizationofmedicalproducts,processingoffood,modificationofpolymers,irradiationofelectronicdevices,andcuringofinks,coatings,andadhesives(1,2).Theabsorbeddosesemployedintheseapplicationsrangefromabout10Gytomorethan100kGy.4.2Regulationsforsterilizationofmedicalproductsandradiationprocessingoffoodexistinmanycountries.Theseregulationsmayrequirethattheresponseofthedosimetrysystembecalibratedandtraceabletonationalstandards(3,4,5).Adequatedosimetry,withproperstatisticalcontrolsanddocumentation,isnecessarytoensurethattheproductsareproperlyprocessed.4.3Properdosimetricmeasurementsmustbeemployedtoensurethattheproductreceivesthedesiredabsorbeddose.Thedosimetersmustbecalibrated.Calibrationofaroutinedosimetrysystemcanbecarriedoutdirectlyinanationaloraccreditedstandardslaboratorybystandardizedirradiationofroutinedosimeters.Alternatively,itmaybecarriedoutthroughtheuseofalocal(in-house)calibrationfacility(6)orinaproductionirradiator.Allpossiblefactorsthatmayaffecttheresponseofdosimeters,includingenvironmentalconditionsandvariationsofsuchconditionswithinaprocessingfacility,shouldbeknownandtakenintoaccount.Theassociatedanalyticalinstrumentationmustalsobecalibrated.1.1Thisguidecoversthebasisforselectingandcalibratingdosimetrysystemsusedtomeasureabsorbeddoseingamma-rayorX-rayfieldsandinelectronbeamsusedforradiationprocessing.Itdiscussesthetypesofdosimetrysystemsthatmaybeemployedduringcalibrationoronaroutinebasisaspartofqualityassuranceincommercialradiationprocessingofproducts.Thisguidealsodiscussesinterpretationofabsorbeddoseandbrieflyoutlinesmeasurementsoftheuncertaintiesassociatedwiththedosimetry.Thedetailsofthecalibrationoftheanalyticalinstrumentationareaddressedinindividualdosimetrysystemstandardpractices.1.2Theabsorbed-doserangecoveredisupto1MGy(100Mrad).Sourceenergiescoveredarefrom0.1to50MeVphotonsandelectrons.1.3Thisguideshouldbeusedalongwithstandardpracticesandguidesforspecificdosimetrysystemsandapplicationscoveredinotherstandards.1.4Dosimetryforradiationprocessingwithneutronsorheavychargedparticlesisnotcoveredinthisguide.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:
【页数】:19P.;A4
【正文语种】:英语