【英文标准名称】:StandardGuideforApplicationofNeutronSpectrumAdjustmentMethodsinReactorSurveillance,E706(IIA)
【原文标准名称】:反应堆监测时中子光谱调节法的应用的标准指南,E706(IIA)
【标准号】:ASTME944-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E10.05
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:dosimetry;exposureparameters;irradiationdamage;leastsquares;neutron;reactorsurveillance;spectrumadjustment;Adjustments;Dosimetry;Energydeposition--neutronradiation;Fastneutronflux/fluence;Fluence;Irradiance/irradiation--nucleara
【摘要】:Adjustmentmethodsprovideameansforcombiningtheresultsofneutrontransportcalculationswithneutrondosimetrymeasurements(seeTestMethodE1005andNUREG/CR-5049)inordertoobtainoptimalestimatesforneutrondamageexposureparameterswithassigneduncertainties.Theinclusionofmeasurementsreducestheuncertaintiesfortheseparametervaluesandprovidesatestfortheconsistencybetweenmeasurementsandcalculationsandbetweendifferentmeasurements(see3.3.3).Thisdoesnot,however,implythatthestandardsformeasurementsandcalculationsoftheinputdatacanbelowered;theresultsofanyadjustmentprocedurecanbeonlyasreliableasaretheinputdata.InputDataandDefinitions:Thesymbolsintroducedinthissectionwillbeusedthroughouttheguide.Dosimetrymeasurementsaregivenasasetofreactionrates(orequivalent)denotedbythefollowingsymbols:Thesedataare,atpresent,obtainedprimarilyfromradiometricdosimeters,butothertypesofsensorsmaybeincluded(see4.1).Theneutronspectrum(seeTerminologyE170)atthedosimeterlocation,fluenceorfluenceratex03A6;(E)asafunctionofneutronenergyE,isobtainedbyappropriateneutronicscalculations(neutrontransportusingthemethodsofdiscreteordinatesorMonteCarlo,seeGuideE482).Theresultsofthecalculationarecustomarilygivenintheformofkgroupfluencesorfluencerates.where:EjandEj+1arethelowerandupperboundsforthej-thenergygroup,respectively.Thereactioncrosssectionsofthedosimetrysensorsareobtainedfromanevaluatedcrosssectionfile.Thecrosssectionforthei-threactionasafunctionofenergyEwillbedenotedbythefollowing:Usedinconnectionwiththegroupfluences,Eq2,arethecalculatedgroup-averagedcrosssectionsx03C3;ij.Thesevaluesaredefinedthroughthefollowingequation:Uncertaintyinformationintheformofvariancesandcovariancesmustbeprovidedforallinputdata.Appropriatecorrectionsmustbemadeiftheuncertaintiesareduetobiasproducingeffects(forexample,effectsofphotoreactions).SummaryoftheProcedures:Anadjustmentalgorithmmodifiesthesetofinputdataasdefinedin3.2inthefollowingmanner(adjustedquantitiesareindicatedbyatilde,forexample,?/span>i):orforgroupfluencerates【英文标准名称】:IntegratedServicesDigitalNetwork(ISDN).User-to-UserSignalling(UUS)supplementaryservice.Servicedescription.
【原文标准名称】:综合业务数字网络(ISDN).用户对用户信令发送(UUS)补充业务.业务说明(欧洲电信标准ETS300284)
【标准号】:NFZ82-284-1997
【标准状态】:现行
【国别】:法国
【发布日期】:1997-06-01
【实施或试行日期】:1997-06-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:综合服务数字网络;信号传输;补充业务;综合业务数字网;电信;电信;远程通信;电话局;信号发送系统;电信设备;通信
【英文主题词】:Communicationservice;Integratedservicesdigitalnetwork;ISDN;Signaltransmission;Signallingsystems;Supplementaryservices;Telecommunication;Telecommunications;Telephoneservices
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_080
【页数】:20P;A4
【正文语种】:其他