ISO/ASTM51276:2012(E)AnAmericanNationalStandardStandardPracticeforUseofaPolymethylmethacrylateDosimetrySystem1ThisstandardisissuedunderthefixeddesignationISO/ASTM51276;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.1.Scope1.1Thisisapracticeforusingpolymethylmethacrylate(PMMA)dosimetrysystemstomeasureabsorbeddoseinmaterialsirradiatedbyphotonsorelectronsintermsofabsorbeddosetowater.ThePMMAdosimetrysystemisclassifiedasaroutinedosimetrysystem.1.2ThePMMAdosimeterisclassifiedasaTypeIIdosim-eteronthebasisofthecomplexeffectofinfluencequantities(seeASTMPracticeE2628).1.3Thisdocumentisoneofasetofstandardsthatprovidesrecommendationsforproperlyimplementingdosimetryinradiationprocessing,anddescribesameansofachievingcompliancewiththerequirementsofASTME2628“PracticeforDosimetryinRadiationProcessing”foraPMMAdosimetrysystem.ItisintendedtobereadinconjunctionwithASTME2628.1.4ThispracticecoverstheuseofPMMAdosimetrysystemsunderthefollowingconditions:1.4.1theabsorbeddoserangeis0.1kGyto150kGy.1.4.2theabsorbeddoserateis1310−2to13107Gy·s−1.1.4.3thephotonenergyrangeis0.1to25MeV.1.4.4theelectronenergyrangeis3to25MeV.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.Referenceddocuments2.1ASTMStandards:2E170TerminologyRelatingtoRadiationMeasurementsandDosimetryE275PracticeforDescribingandMeasuringPerformanceofUltravioletandVisibleSpectrophotometersE2628PracticeforDosimetryinRadiationProcessingE2701GuideforPerformanceCharacterizationofDosim-etersandDosimetrySystemsforUseinRadiationProcess-ing2.2ISO/ASTMStandards:251261GuideforSelectionandCalibrationofDosimetrySystemsforRadiationProcessing51707GuideforEstimatingUncertaintiesinDosimetryforRadiationProcessing2.3InternationalCommissiononRadiationUnitsandMeasurements(ICRU)Report...
