ANSI/ASTM E1401-2003 重铬酸盐剂量测定系统使用的实施规范
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【英文标准名称】:UseofaDichromateDosimetrySystem,Practicefor(12.02)
【原文标准名称】:重铬酸盐剂量测定系统使用的实施规范
【标准号】:ANSI/ASTME1401-2003
【标准状态】:作废
【国别】:美国
【发布日期】:2003-06-10
【实施或试行日期】:2003-06-10
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:剂量测定
【英文主题词】:dosimetry
【摘要】:Thispracticecoversthepreparation,testing,andprocedureforusingtheacidicaqueoussilverdichromatedosimetrysystemtomeasureabsorbeddoseinwaterwhenexposedtoionizingradiation.Thesystemconsistsofadosimeterandappropriateanalyticalinstrumentation.Forsimplicity,thesystemwillbereferredtoasthedichromatesystem.Itisclassifiedasareferencestandarddosimetrysystem(seeGuideE1261).Thepracticedescribesthespectrophotometricanalysisproceduresforthedichromatesystem.Thispracticeappliesonlyto[gamma]rays,xrays,andhigh-energyelectrons.Thispracticeappliesprovidedthefollowingconditionsaresatisfied:Theabsorbeddoserangeisfrom2X10to5X10Gy.Theabsorbeddoseratedoesnotexceed600Gy/pulsewithapulserepetitionratenottoexceed12.5Hz,ordoesnotexceedanequivalentdoserateof7.5kGy/sfromcontinuoussources(1).Forradionuclidegamma-raysources,theinitialphotonenergyshallbegreaterthan0.6MeV.Forbremsstrahlungphotons,theinitialenergyoftheelectronsusedtoproducethebremsstrahlungphotonsshallbeequaltoorgreaterthan2MeV.Forelectronbeams,theinitialelectronenergyshallbegreaterthan8MeV.Note1-Thelowerenergylimitsgivenareappropriateforacylindricaldosimeterampouleof12mmdiameter.Correctionsfordosegradientsacrossanampouleofthatdiameterorlessarenotrequired.Thedichromatesystemmaybeusedatlowerenergiesbyemployingthinner(inthebeamdirection)dosimetercontainers(seeICRUReport35).Theirradiationtemperatureofthedosimetershallbeabove0?Candshouldbebelow80?C.Note2-Thetemperaturecoefficientofdosimeterresponseisknownonlyintherangeof20?to50?C(see10.1.8).Useoutsidethisrangeisnotrecommended.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardstatementsaregiveninNote6.
【中国标准分类号】:G12
【国际标准分类号】:17_240
【页数】:
【正文语种】:英语
【原文标准名称】:重铬酸盐剂量测定系统使用的实施规范
【标准号】:ANSI/ASTME1401-2003
【标准状态】:作废
【国别】:美国
【发布日期】:2003-06-10
【实施或试行日期】:2003-06-10
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:剂量测定
【英文主题词】:dosimetry
【摘要】:Thispracticecoversthepreparation,testing,andprocedureforusingtheacidicaqueoussilverdichromatedosimetrysystemtomeasureabsorbeddoseinwaterwhenexposedtoionizingradiation.Thesystemconsistsofadosimeterandappropriateanalyticalinstrumentation.Forsimplicity,thesystemwillbereferredtoasthedichromatesystem.Itisclassifiedasareferencestandarddosimetrysystem(seeGuideE1261).Thepracticedescribesthespectrophotometricanalysisproceduresforthedichromatesystem.Thispracticeappliesonlyto[gamma]rays,xrays,andhigh-energyelectrons.Thispracticeappliesprovidedthefollowingconditionsaresatisfied:Theabsorbeddoserangeisfrom2X10to5X10Gy.Theabsorbeddoseratedoesnotexceed600Gy/pulsewithapulserepetitionratenottoexceed12.5Hz,ordoesnotexceedanequivalentdoserateof7.5kGy/sfromcontinuoussources(1).Forradionuclidegamma-raysources,theinitialphotonenergyshallbegreaterthan0.6MeV.Forbremsstrahlungphotons,theinitialenergyoftheelectronsusedtoproducethebremsstrahlungphotonsshallbeequaltoorgreaterthan2MeV.Forelectronbeams,theinitialelectronenergyshallbegreaterthan8MeV.Note1-Thelowerenergylimitsgivenareappropriateforacylindricaldosimeterampouleof12mmdiameter.Correctionsfordosegradientsacrossanampouleofthatdiameterorlessarenotrequired.Thedichromatesystemmaybeusedatlowerenergiesbyemployingthinner(inthebeamdirection)dosimetercontainers(seeICRUReport35).Theirradiationtemperatureofthedosimetershallbeabove0?Candshouldbebelow80?C.Note2-Thetemperaturecoefficientofdosimeterresponseisknownonlyintherangeof20?to50?C(see10.1.8).Useoutsidethisrangeisnotrecommended.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardstatementsaregiveninNote6.
【中国标准分类号】:G12
【国际标准分类号】:17_240
【页数】:
【正文语种】:英语
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