简介：DigitaldecayspectroscopyofactinideisotopesatthegasfilledseparatorSHANSAlloverthechartofnuclides,theregiontothe“north-east”of208Pb,withZ≥84andN=128~130,hoststheshortest-livedαradioactivities,withhalf-livesintherangeofnanosecondstomicroseconds.Synthesisanddetectionofneutron-deficientisotopesabovethoriuminthisregionarechallengingduetotheirlowproductioncrosssectionsandshorthalf-lives.

简介：In2016,thepowersupplyinCSRmwasdigitalizedtofurtherimprovethereliabilityofoperation.Anewvectorrecticationtechniqueisdevelopedfortheresearchofadvancedpowersupplyandelectricalrelatedtechnologies.AnumberofEMCandelectricalsafetytestingitemsforHIMMWuweipowersupplieshasbeencompleted.DigitalizationupgradeofthepowersupplyCSRmpowersupply,including30setsquadrupolemagnetpowersupply,6setssextupolemagnetpowersupplyand8setsbipolarcorrectmagnetpowersupply,weretransformedbyusingofdigitalcontrollersbasedonFPGA.Fig.1displaysthemeasurementresultsofthenewdigitalpowersupplyofquadrupolemagnet,thecurrenterror(attop)was1.7610?5,thetrackinger-rorwas5.2810?5.Theperformanceandreliabilityofthepowersupplyhavebeengreatlyimproved.

简介：Thescientificprogramofthegroupcoversbigbangnucleosynthesis,hydrostaticburninginstarsandexplosivenucleosynthesisinsupernova.Byconsideringnon-equilibriumstatistics,wesuggestapossiblewaytosolvetheLiprobleminbigbangnucleosynthesis.The13C(α,n)16Oisthemajorneutronsourceforthes-processhappeninginAGBstars.The19F(p,α)16Oisrelevanttotheproductionoffluorine.WearedevelopingexperimentalplatformstostudytheimportantreactionforthefirsttimedirectlyattheirstellarenergiesinJinpingUndergroundLaboratory.The59Festellardecayrateisimportantfortheproductionof60Fe,animportantisotopewhosegammarayhasbeenobservedbysatellites.WedetermineitsstellardecayrateforthefirsttimeusingexperimentalB(GT)strength.Thenewratereducesthediscrepancyofthe60Feyieldsbetweenthemodelpredictionsandtheobservations.Theundergroundexperimentisexpectedtobeginin2018.

简介：TheGroupofEnergyMaterials(GEM)inIMPisengagedintheirradiationresponseofmaterialscandidatetoadvancednuclearenergysystems(GenIV,fusionreactors).Themajorprogressofresearchinourgroupin2016isintheirradiationhardening/embrittlementofoxide-dispersion-strengthened(ODS)ferriticsteelsandVanadiumalloys,andinthemechanismsunderlyingdamageproductioninsiliconcarbide(SiC)fibers.Abriefdescriptionisgivenasfollows.1.EffectoftheoxidenanoparticlesontheirradiationhardeningofODSferriticsteelsTheinfluenceofoxidenanoparticlesontheirradiationresistanceofODSferriticsteelsisacrucialissuefortheupgradeofODSsteels.

简介：TheGroupofNuclearStructureResearchatIMPhasdevotedmuchefforttothestudyofin-beam-rayspectroscopyandγ-decayspectroscopy.Oneterminalforin-beam-rayspectroscopyhasbeennewlybuiltupin2016.Asforγ-decayspectroscopy,twopointsneedtobeemphasized.Inordertostudythein-beam-rayspectroscopy,aballwasplacedattheterminalofnewTL2beamline.Threequadrupolemagnetsfollowingthedipolemagnetarethemainbuildingblocksalongthebeamline.Theballconsistsof8cloverand16HPGedetectorswithaCsIballinsidetoselectthechargedparticlechannel.Awallisolatingtheballfromthequadrupoleswasusedtoshieldtheradiationproducedbytheacceleratoranddepositingenergyinthedetectors,whichmayresultinahighbackground.Theinstallationwasfinishedin2016andtheexperimentforin-beam-rayspectroscopyisexpectedtoperformin2017.

简介：Powdermetallurgy(PM)superalloysareanimportantclassofhightemperaturestructuralmaterials,keytotherotatingcomponentsofaeroengines.InthepurviewofthepresentchallengesassociatedwithPMsuperalloys,twonovelapproachesnamely,powderpreparationandtheinnovativespray-formingtechnique(formakingturbinedisk)areproposedandstudied.Subsequently,advancedtechnologieslikeelectrode-induction-meltinggasatomization(EIGA),andspark-plasmadischargespheroidization(SPDS)areintroduced,forceramic-freesuperalloypowders.Presently,newprocessingroutesaresoughtafterforpreparingfinerandcleanerrawpowdersfordisksuperalloys.Theprogressofresearchinspray-formedPMsuperalloysisfirstsummarizedindetail.Thespray-formedsuperalloydisksspecificallyexhibitexcellentmechanicalproperties.ThispaperreviewstherecentprogressininnovativetechnologiesforPMsuperalloys,withanemphasisonnewideasandapproaches,centraltotheinnovationdrivingtechniqueslikepowderprocessingandsprayforming.

简介：1.ThemutationbreedingofplantsIn2016,themutationmechanismofvariousplantmutantsincludingArabidopsisthaliana,Geranium,Trades-cantiauminensis,TaraxacumkoksaghyzRodinandalgaeobtainedbyheavyionbeammutationbreedingtechniqueswereinvestigated.Thegenome-wideprofilingofanArabidopsismutantnamedcivar(CarbonionbeamsInducedVariegated)wasrevealedbyusingre-sequencingandtheroughmap-basedcloningtechniques.AphenotypescreeningofArabidopsisthalianairradiatedbycarbonionbeamsbasedonhigh-throughputimagingtechniquecombiningtheprincipalcomponentanalysisandscattermatrixclusteringanalysiswasbuiltandoptimizedwhichcanscreenthevariationofplantmutantpopulations.Thepigmentcomponentsandquantitiesandexpressionprofilesofkeygenesinvolvedinanthocyaninbiosynthesisofflower-colormutantofGeraniumandleaf-colormutantofTrades-cantiauminensiswereinvestigated.MutationbreedingofTaraxacumkoksaghyzRodininducedbycarbonionbeamirradiationswhichisnotableforitsproductionofhighqualityrubberandinulinwasstarted.Inaddition,thephotosyntheticresponseofthemutantsofScenedesmusquadricaudawithalteredpigmentfeatureswereanalyzed.

简介：Asanatomicemissionspectroscopytechnique,laser-inducedbreakdownspectroscopy（LIBS）,firstproposedbyBreechandCrossin1962[1],hasattractedmuchaca-demicandindustrialinterestforitsuniqueproperties.Byfocusingapulsedlaserontothesurfaceofatarget,laser-inducedplasmascanbegenerated.Thesimplicityofsamplepreparationofthelaserablationprocessen-ablesLIBStodirectlyanalyzesolid,liquid,orgaseousmaterialsintheatmosphere,makingitaconvenienttoolforchemicalanalyses.TheuniquefeaturesofLIBSsuchasrequiringlittleornosamplepreparation,allowingre-motedetection,andfacilitatingmultipleelementalanal-yseshavecontributedtoitsrapiddevelopmentinrecentyears.