SAE AMS4179 Aluminum Alloy Forgings, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (7175-T7452), Solution Heat Treated, Stress Relieved
时间:2024-05-15 02:29:40 来源: 标准资料网 作者：标准资料网 阅读：9110
Product Code:SAE AMS4179
Title:Aluminum Alloy Forgings, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (7175-T7452), Solution Heat Treated, Stress Relieved, and Precipitation Heat Treated
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope:This specification covers an aluminum alloy in the form of die forgings, hand forgings, and forging stock.
【英文标准名称】:Basematerialsforprintedcircuits;part2:specifications;specification18:bismaleimide/triazinemodifiedepoxidewovenglassfabriccopper-cladlaminatedsheetofdefinedflammability(verticalburningtest)
【原文标准名称】:印制电路用基材第2部分:规范第18号规范:阻燃型双马来酰亚胺/三嗪改型环氧化物玻璃布覆铜层压板(垂直燃烧试验)
【标准号】:IEC60249-2-18-1992
【标准状态】:作废
【国别】:国际
【发布日期】:1992-02
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC91
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Laminatedsheetscoveredbythesespecifications(formaterialsandconstruction,electricalproperties,non-electricalpropertiesofthecopper-cladsheetandofthebasematerial,packagingandmarking,acceptancetesting)havethicknessesof0,5mmup
【中国标准分类号】:L30;L90
【国际标准分类号】:13_220_40;31_180
【页数】:31P;A4
【正文语种】:英语
【英文标准名称】:Nuclearenergy-Referencebeta-particleradiation-Methodsofproduction
【原文标准名称】:核能.β粒子辐射基准源.生产方法
【标准号】:BSISO6980-1-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-09-29
【实施或试行日期】:2006-09-29
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:β辐射;β粒子;校正;定义;计量;剂量计;剂量测定;辐照率表;核能;核动力;辐射;辐射测量;基准源;规范
【英文主题词】:Betaradiation;Beta-particles;Calibration;Definition;Definitions;Dosequantities;Dosimeters;Dosimetry;Exposure-ratemeters;Nuclearenergy;Nuclearpower;Radiation;Radiationmeasurement;Referencesources;Specifications
【摘要】:ThispartofISO6980specifiestherequirementsforreferencebetaradiationfieldsproducedbyradionuclidesourcestobeusedforthecalibrationofpersonalandareadosemetersanddose-ratemeterstobeusedforthedeterminationofthequantitiesHp(0,07)andH'(0,07),andforthedeterminationoftheirresponseasafunctionofbetaparticleenergyandangleofincidence.Itgivesthecharacteristicsofradionuclidesthathavebeenusedtoproducereferencebetaradiationfields,givesexamplesofsuitablesourceconstructionsanddescribesmethodsforthemeasurementoftheresidualmaximumbetaparticleenergyandthedoseequivalentrateatadepthof0,07mmintheInternationalCommissiononradiationunitsandmeasurements(ICRU)sphere.Theenergyrangeinvolvedliesbetween66keV1)and3,6MeVandthedoseequivalentratesareintherangefromabout10μSvh-1toatleast10Svh-1.Inaddition,forsomesourcesvariationsofthedoseequivalentrateasafunctionoftheangleofincidencearegiven.ThispartofISO6980proposestwoseriesofbetareferenceradiationfields,fromwhichtheradiationnecessaryfordeterminingthecharacteristics(calibrationandenergyandangulardependenceofresponse)ofaninstrumentcanbeselected.Series1referenceradiationfieldsareproducedbyradionuclidesourcesusedwithbeamflatteningfiltersdesignedtogiveuniformdoseequivalentratesoveralargeareaataspecifieddistance.Theproposedsourcesof90Sr+90Y,85Kr,204TIand147Pmproducemaximumdoseequivalentratesofapproximately200mSvh_1.Series2referenceradiationfieldsareproducedwithouttheuseofbeam-flatteningfilters,whichallowslargeareaplanarsourcesandarangeofsource-to-calibrationplanedistancestobeused.Closetothesources,onlyrelativelysmallareasofuniformdoserateareproduced,butthisserieshastheadvantageofextendingtheenergyanddoseraterangesbeyondthoseofSeries1.Theradionuclidesusedarethoseofseries1withtheadditionoftheradionuclides14Cand106Ru+106Rh;thesesourcesproducedoseequivalentratesofupto10Svh-1.
【中国标准分类号】:F81
【国际标准分类号】:17_240
【页数】:20P;A4
【正文语种】:英语