TB 1546.3-1984 冷冲模限位装置 限位柱

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【英文标准名称】:Practiceforuseofaceric-ceroussulfatedosimetrysystem
【原文标准名称】:硫酸铈和硫酸高铈剂量测定系统的使用规程
【标准号】:ISO/ASTM51205-2002
【标准状态】:作废
【国别】:国际
【发布日期】:2002-03
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC85
【标准类型】:()
【标准水平】:()
【中文主题词】:电离辐射;辐射计量;定义;X射线;剂量测定;核辐射;电子束;辐射测量;γ辐射
【英文主题词】:Definitions;Dosimetry;Electronbeams;Gamma-radiation;Ionizingradiation;Nuclearradiation;Radiationdose;Radiationmeasurement;X-rays
【摘要】:1Thispracticecoversthepreparation,testing,andproce-dureforusingtheceric-ceroussulfatedosimetrysystemtomeasureabsorbeddoseinwaterwhenexposedtoionizingradiation.Thesystemconsistsofadosimeterandappropriateanalyticalinstrumentation.Forsimplicity,thesystemwillbereferredtoastheceric-ceroussystem.Itisclassifiedasareferencestandarddosimetrysystem(seeISO/ASTMGuide51261).Ceric-cerousdosimetersarealsousedastransfer-stan-darddosimetersorroutinedosimeters.2Thispracticedescribesboththespectrophotometricandthepotentiometricreadoutproceduresfortheceric-ceroussystems.3Thispracticeappliesonlytoγrays,Xrays,andhighenergyelectrons.4Thispracticeappliesprovidedthefollowingaresatis-fied:4.1Theabsorbed-doserangeshallbebetween5×10and5×10Gy(1).4.2Theabsorbed-doserateshallbelessthan10Gy/s(1).4.3Forradionuclidegamma-raysources,theinitialpho-tonenergyshallbegreaterthan0.6MeV.Forbremsstrahlungphotons,theinitialenergyoftheelectronsusedtoproducethebremsstrahlungphotonsshallbeequaltoorgreaterthan2MeV.Forelectronbeams,theinitialelectronenergyshallbegreaterthan8MeV.Note1—Thelowerenergylimitsareappropriateforacylindricaldosimeterampouleof12-mmdiameter.Correctionsfordosegradientsacrossanampouleofthatdiameterorlessarenotrequiredforphotons,butmayberequiredforelectronbeams(2).Theceric-ceroussystemmaybeusedatlowerenergiesbyemployingthinner(inthebeamdirection)dosimetercontainers(seeICRUReport35).4.4Theirradiationtemperatureofthedosimetershallbebetween0and62℃(3).Note2—Thetemperaturecoefficientofdosimeterresponseisknownonlyinthisrange.Foruseoutsidethisrange,thedosimetrysystemshouldbecalibratedfortherequiredrangeofirradiationtemperatures.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.note:2Theboldfacenumbersinparentheserefertothebibliographyattheendofthisstandard.
【中国标准分类号】:F80
【国际标准分类号】:17_240
【页数】:11P;A4
【正文语种】:英语


Product Code:SAE AMS4007
Title:Aluminum Alloy, Foil 4.4cu 1.5mg 0.60mn (Cancelled Aug 1999)
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope:This specification covers an aluminum alloy in the form of foil.