简介:ThemagneticfusionreactorusingtheadvancedD-3Hefuelshastheadvantageofmuchless-neutronproductionssothattheconsequentdamagestothefirstwallarelessserious.Iftheestablishmentofthiskindofreactorbecomesrealistic,theexplorationof3Heonthemoonwillbelargelymotivated.Basedonrecentprogressesinthesphericaltorus(ST)research,wehavephysicallydesignedaD-3HefusionreactorusingtheextrapolatedresultsfromtheSTexperimentsandalsothepresent-daytokamakscaling.Itisfoundthatthereactorsizesignificantlydependsonthewallreflectioncoefficientofthesynchrotronradiationandoftheimpuritycontaminations.ThesecondaryreactionbetweenD-DthatpromptlyleadstotheD-Treactionproducing14MeVneutronsisalsoestimated.ComparisonofthisD-3HeSTreactorwiththeD-Treactorismade.
简介:Duetolowactivationcharacteristics,desirablehigh-temperaturestrength,goodresistancetoradiationdamageandusablefabricationproperties,vanadium(V)alloysareattractivecandidatestructuralmaterialsforfusionreactors[1].Irradiationinducedhardening/embrittlementatlowtemperatureisamajorproblemforthematerialsapplicationinfusionreactor[2].Inthisstudy,H/Heionswithvariousenergieswereusedtoirradiateapurevanadium(V)andaValloy(V-4Ti)toobtainadamageplateaufromsamplesurfacetothedepthof1.5m,asshowninFig.1[3].Thedetailsofirradiationparameters(energies,fluences)forHandHeionsareshowninTable1.NanoindentationwasperformedtoinvestigatethehardeningbehaviorofV-4TialloyandpureVunderirradiation.
简介:Usingamicrowavegenerator,chlorinedilutedbyheliumwasdissociatedtochlorineatomsthatsubse-quentlyreactedwithhydrogenazidetoproducetheexcitedstatesofNCl(a1△).Meanwhile,moleculariodinewithcarriergasofheliumreactedwithatomicchlorinetoproduceatomiciodinewhichthenwaspumpedtoexcitedstateofI(2P1/2)byanenergytransferreactionfromNCl(a1△).Inthispaper,thechangesofNCl(a1△)andNCl(bi∑)emissionintensityispresentedwhenI2/HeisintroducedintothestreamofCl/Cl2/He/HN3/NCl(a1△)/NCl(b1∑).ThedependencesofatomiciodineI(2P1/2)onflowratesofgaseswerealsoinvestigated.TheoptimumparametersforI(2P1/2)productionaregiven.