Ti、Cr类氦双电子复合速率系数的量子力学计算

213Vol.21№.320047JOURNALOFATOMICANDMOLECULARPHYSICSJul.20041000-0364200403-0477-06TiCr✷12✷✷1.8350002.201800TiCrHe-TiCrHe-1s2pnp→1s2np1s2pnd→1s2nd75%TiCrHeO41AThequantuLLechanicscalculationsofthedielectronicrecoLbinationratecoefficientsforHe-LikeTiandCrJIANGXin-ge1LIXiang-dong21.DepartmentofcomputerScienceIliTeachersCollegeYining835000P.R.China2.LaboratoryforHighIntensityOpticsShanghaiInstituteofOpticsandFineMechanicsChineseAcademyofScienceShanghai201800P.R.ChinaAbstractThefullquantummechanicsmethodisusedtocalculatethestate-to-stateandthetotaldielectronicrecombinationratecoefficientsforHe-likeTiandCr.Therelationsbetweenthedielectronicrecombinationratecoefficientsandthedifferentcouplingparametersofspectraltermsarestudied.Itisshownthatthetworecombinationchannels1s2pnp→1s2npand1s2pnd→1s2ndprovide75%ofthetotaldielectronicrecombinationratecoefficients.Thestate-to-stateandthetotaldielectronicrecombinationratecoefficientwhichcanbeusedintheelectronictemperaturediagnosticsofcoronaplasmaarealsoobtained.KeywordsDielectronicrecombinationHe-likeTiHe-likeCr1-1942MasseyBates11964BurgessSeaton✷✷✷[e-mail]2003-11-25102740898632003AA8430611967-23Hartree-FockBornBorn-OppenheimorR4TiCrTiCr5~7TiCrTiCrTiCrHeTiCr-TiCrHeTiCrHeTiCrHeLi2Saha-αdjkTEαdm0jkTE4π32a30T32e-Ejm0Tgjgm╰╰==0*Aajm0Arjk∑m◜Aajm◜+∑k◜Arjk◜1m0jkgjgmAajm0Aajm0E∑iAajifixedm0andj2AajiE2π#|j|H|i|23iHartree-FockHartree-Fock-Darwin-BreitCowanRCN34RCN2RCG9TiCr-8-αdTE∑j∑kαdjk4-3TiCr1s2s287420041s2nlmln◜l◜nl5m≥1n◜≥n≥2ll◜l1s2+e→mln◜l◜nl→1s2nl1s2╰╰n◜l◜61s2+e6661s2+e→1sn◜l◜nl→1s2nl1s2╰╰n◜l◜71s31s77---47TiCrHe1TiCrHe1TiCrHeTiHeCrHeTiHeCrHe91TiHeCrHeTi3+0.1keV6.26E-13cm3sec-1Cr3.5+0.1keV5.55E-13cm3sec-16.1keVTiCrHe974213TiCrCrHeTiHeTiHeCrHeTiHeCrHe6.4%-1s2pnp→1s2np1s2pnd→1s2nd75%-n□1s2p1Pnd2D32→1s2nd2D32○1s2p1Pnd2D52→1s2nd2D32$1s2p1Pnd2D52→1s2nd2D52%1s2p1Pnd2F52→1s2nd2D32+1s2p1Pnd2F52→1s2nd2D52&1s2p1Pnd2F72→1s2nd2D52’1s2p1Pnd2D12→1s2nd2D32(1s2p1Pnd2P32→1s2nd2D32)1s2p1Pnd2P32→1s2nd2D52*1s2p3Pnd2F52→1s2nd2D52+1s2p3Pnd4F72→1s2nd2D52231s2pnp→1s2np1s2pnd→1s2ndLSRydbergn---1s2p1P3p2S12→1s23p2P12-1s2p1P4p2S12→1s24p2P12---n□1s2p1Pnp2D32→1s2np2P12,1s2p1Pnp2D52→1s2np2P32○1s2p1Pnp2P12→1s2np2P12%1s2p1Pnp2P32→1s2np2P32&1s2p1Pnp2S12→1s2np2P12’1s2p1Pnp2S12→1s2np2P32(1s2p3Pnp2D32→1s2np2P32)1s2p3Pnp4D32→1s2np2P12$1s2p3Pnp4D52→1s2np2D3223--Li90842004HeLiLi1s1s2pnp1s2pnd1P3P23○1s4p1P5p2D52→1s24p2P32Δ1s4p1P6p2D52→1s24p2P32▽1s4p1P7p2D52→1s24p2P32◇1s4p1P8p2D52→1s24p2P32&1s4p1P9p2D52→1s24p2P324545454p9’1s4p3P5p2D52→1s24p2P32(1s4p3P6p2D52→1s24p2P32Δ1s4p3P7p2D52→1s24p2P32▽1s4p3P8p2D52→1s24p2P321s4p3P9p2D52→1s24p2P32--102740898632003AA8430611ShenstoneAG.Phys.Rev.193036669Phys.Rev.193138873.184213TiCr2BurgessA.Astrophys.J.1964139776.3SaetonMJandStoreyPJ.inAtomicprocessesandapplications1976133~197NorthHollandPubl.Amsterdam.4HahnY.CommentsAt.Mol.Phys.198313103.5ShepardTDBackCAKalanterDHetal.Phys.Rev.1996E535291.6BackCAKalantarDHKauffmanRLetal.Phys.Rev.Lett.1996774350.7MarjoribanksRSRichsrdsonMCJaanimagiPAetal.Phys.Rev.1992A46R1747.8CowanRD.TheoryofatomicstructureandspectraM.UniversityofCaliforniapressBerkeley1981.9.TiCrLiHeTiCrD.2000.LiXD.TheoreticalstudyoftheautoionizationlevelsforLi-likeionsandthedielectronicrecombinationforHe-likeionsinTiandCrsystemandtheelectronictemperaturediagnosticusingTiandCrastraceD.PH.DdissertationofSichuanUniversity2000.continuedfrompage4764NE3E-4a-30NE7E-4a-30NE1E-3a-30NE1.5E-3a-301FanoUCooperJW.SpectraldistributionofatomicoscillatorstrengthsJ.Rev.Mod.Phys.1968403441~507.2ChangTNandLuoYX.DeconvolutionofatomicphotoabsorptionspectraamatchbetweentheoryandexperimentJ.J.ChineseChemicalSociety200148347~353.3GallagherJWBrionCESamsonJARandLanghoffPW.AbsolutecrosssectionsformolecularphotoabsorptionpartialphotoionizationandionicphotofragmentationprocessesJ.J.Phys.Chem.Ref.Data.1988179~153.4ChanWFCooperGBrionCE.AbsoluteopticaloscillatorstrengthsfortheelectronicexcitationofatomsathighresolutionExperimentalmethodsandmeasurementsforheliumJ.Phys.Rev.1991A44186~204.5FanoU.EffectsofconfigurationinteractiononintensitiesandphaseshiftsJ.Phys.Rev.19611241866~1878.6SunWGMaXGandChengYS.Density-dependentexpressionsforphotoionizationcross-sectionsJ.Phys.Lett.2004A3263-4243~251.7SheldonDDrakeGWFGallagherTFKleinpoppenHPutlitzGZu.AtomicPhysicsJ.Rev.Mod.Phys.1999712S223~S241.2842004