简介：该出版物涵盖与厂址相关的因素以及有关运行状态和事故条件的现场组装相互作用因素,包括应对紧急事故的保证措施、非组装相关的自然因素及人因导致的安全重要事件。本安全要求标准中所考虑的外部人因事件都是偶发事件。该标准不覆盖为避免第三方故意行为对核设施装置安全进行的实体保护。此前关于本主题的安全标准适合陆上固定热中子核电厂,该标准则适用于范围更广的核设施,采用以评估对人和环境带来的辐射风险为标准的分级方法。

简介：TheHTScurrentleadsofsuperconductingmagnetsforlargescalefusiondevicesandhighenergyparticlecolliderscanreducethepowerconsumptionforcoolingby2/3comparedwithconventionalleads.Theresistivesectionsofhigh-ratedcurrentleadsareusuallymadeofaheatexchangercooledbygasflow.Thesupplyofthecoolingmassflowincursmorethan90%ofthecoolingcostfortheHTSleads.Themassflowraterequirementdependsnotonlyonthelengthandmaterialoftheresistiveheatexchanger,butalsoontheheattransfercoefficientandHEXsurface,thejointresistanceatthecoldendanditscoolingapproach.Thedesignandoperationofasheet-stackHEXwithalargerspecificsurfaceandamuchsmallerhydraulicdiameterarepresentedinthepaper.ThetestresultsofanHTSleadoptimizedfor8kAshowthata98.4%efficiencycanbeachieved.

简介：InthedischargeofEASTtokamak,itisobservedthat（2,1）neoclassicaltearingmode（NTM）istriggeredbymodecouplingwitha（1,1）internalmode.Usingsingularvaluedecomposition（SVD）methodforsoftX-rayemissionandforelectroncyclotronemission（ECE）,thecouplingspatialstructuresandcouplingprocessbetweenthesetwomodesareanalyzedindetail.TheresultsofSVDforECErevealthatthephasedifferencebetweenthesetwomodesequalstozero.Thisisconsistentwiththeperfectcouplingcondition.Finally,performingstatisticalanalysisofγ1/1,ζ1/1andω2/1,wefindthatγ1/1moreaccuratelyrepresentsthecouplingstrengththanζ1/1,andγ1/1isalsostronglyrelatedtothe（2,1）NTMtriggering,whereγ1/1isthewidthof（1,1）internalmode,ζ1/1istheperturbedamplitudeof（1,1）internalmode,andω2/1denotesthemagneticislandwidthof（2,1）NTM.

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简介：StableoperatingregionintheHL-1Mtokamakhasbeenextendedbymeansofwallconditioning,corefuellingandcurrentcontroltechniques.Themechanismsoftheextensionareanalyzedinthispaper.Lithiumizationdiminishestheimpuritiesandhydrogenrecyclingtothelowestlevel.Afterlithiumizationahighdensityupto7×1019m-3wasobtainedeasilybystronggaspuffingwithordinaryohmicdischargealone.MoreattractivelywefoundthatmetalLi-coatingexhibitedtheeffectsofwallstabilization.Thelowqalimitwithhigherdensitywasextendedbyafactorof1.5～2incomparisonwiththatforboronization,and1.2forsiliconization.Siliconizationnotonlyextendedstableoperatingregionsignificantlybyitself,butalsoprovidedagoodtargetplasmaforotherexperimentsofraisingdensitylimit.Corefuellingschemesarefavourableespeciallyforsiliconizedwallwithahigherlevelofmedium-Zimpurity(Z=14).Aftersiliconizationthemaximumdensitynearto1020m-3wasachievedbyacombinationofsupersonicmoleculebeaminjectionandmultipelletinjection.ThenewdefinedslopeofHugilllimitillustratingmoreclearlythesituationunderlowqaandhighnedischargeswascreatedtoindicatethenewregionextendedbycombiningIpramp-upwithcorefuelling.TheslopewithalargeMurakamicoefficientincreasedbyafactorof50～60%.

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简介：某制造厂在核级阀门返厂维修过程中出现核l级阀门锻件违规补焊事件,之后又在核级阀门制造过程中出现无损检验违规事件,两起事件造成核级阀门出现了质量隐患.该违规事件反映出制造厂质量保证体系运转存在严重问题,工程公司和业主监造不力.事件相关方应加强质量管理和过程控制,消除质量隐患,做好经验反馈,确保核设备质量.

简介：AP1000核电厂文件编码是一项基于信息分类和编码理论的设计管理技术.简要描述了AP1000文件编码的规则和应用范围,分析了它在核电前期工程应用领域中的局限性,通过分析它在核电前期工程中的主要工作,提出了文件编码在核电前期工程应用的解决方案,并给出了文件编码示例.

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简介：给出了北京正负电子对撞机（BEPC）同步辐射新组装的3W1Wiggler束斑强度分布及光子束流的测量结果，并与理论计算作了比较，两者得出了一致的结果。

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简介：本文简要介绍了GS-R-3与HAF003两种质量保证法规，列出了具体的比较、分析与评价表，并提出了总体分析与评价意见。可供修订我国质量保证法规时参考。

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简介：Zn_(1-x)Cu_xOthinfilmsweresynthesizedbytheradiofrequency(RF)magnetronsputteringtechniqueusingaZnOtargetcontainingdifferentpiecesofsmallCu-chips.X-raydiffraction(XRD)andscanningelectronmicroscopy(SEM)wereemployedtoanalyzethecrystallineandmicrostructureofthefihn,andX-rayphotoelectronspectroscopy(XPS)wasusedtoestablishthebondingcharacteristicsandoxidationstatesofcopperinsidetheZnOhost.Roomtemperature(RT)ferromagnetismwasobservedintheZn_(1-x)Cu_xOfilmsbyaQuantumDesignsuperconductingquantmninterferencedevice(SQUID)andthesaturationmagneticmomentofthefilmswasfoundtodecreasewiththeincreaseinCucontent.

简介：本文介绍了BSRF4W1B束线及XAFS实验站八五改造工程的目标，主要工作，及改进后该实验系统达到的各项主要技术指标及运行状态。