类氦离子V~(21 )精细能级结构及跃迁光谱的相对论计算

采用加轨道极化修正的相对论多组态Dirac Fock方法 ,计算了类氦离子V2 1 的跃迁几率和跃迁波长 ,所得结果与实验值吻合 ,比较了极化对能级、能级间隔和不同类型跃迁的影响 ,并讨论了轨道极化修正函数。     

类氦离子Cr^22＋精细结构能级和光谱跃迁的相对论多组态 …

采用相对论多组态自洽场方法,计算了Ｃｒ＾２２＋离子的精细结构能级,能级宽度,激发态寿命和光谱跃迁参数。计算中考虑了核的有限体积效应,Ｂｒｅｉｔ修正,ＱＣＤ修正和轨道极化效应。所得结果与文献的实验值和计算值进行了比较。     

类氦离子Cr~(22 ) 精细结构能级和光谱跃迁的相对论多组态计算

采用相对论多组态自洽场方法,计算了类氦Cr22 离子的精细结构能级,能级宽度,激发态寿命和光谱跃迁参数。计算中考虑了核的有限体积效应,Breit修正,QED修正和轨道极化效应。所得结果与文献的实验值和计算值进行了比较     

高离化离子Bi^54＋的能级结构和跃迁参数的理论计算

根据相对论多组态理论，采用新版“多功能相对论原子结构计算程序”ＧＲＡＳＰ２（１９９２），计算了高离化离子Ｂｉ~（５４＋）的精细结构能级和光谱跃迁参数。计算得到的波长与实验值和Ｓｅｅｌｙ等人的计算结果进行了比较。     

铬的电离势及类氦Cr22+的E2和M1光谱跃迁的全相对论计算

基于相对论多组态自洽场方法,计算了CrⅠ至CrⅩⅩⅣ 离子的基态能量和各价电离势,类氦Cr22+离子的电四极矩和磁偶极矩光谱跃迁数据 。计算中考虑了核的有限体积效应、Berit修正、QED修正和轨道极化效应。计算结果与文献 的实验和计算值进行了比较。     

铬的电离势及类氦Cr~(22 )的E2和M1光谱跃迁的全相对论计算

基于相对论多组态自洽场方法 ,计算了CrⅠ至CrⅩⅩⅣ离子的基态能量和各价电离势 ,类氦Cr2 2 离子的电四极矩和磁偶极矩光谱跃迁数据。计算中考虑了核的有限体积效应、Berit修正、QED修正和轨道极化效应。计算结果与文献的实验和计算值进行了比较。     

高离化类铍离子2s2 1S0-2s2p3P1(Z=10-103)自旋禁戒光谱跃迁

利用全相对论性多组态Dirac Fock平均能级 (MCDF AL)方法系统地计算了高离化类铍离子自旋禁戒 2s21S0 — 2s2 p3 P1(Z =10— 10 3)跃迁的能级间隔和跃迁概率 ,计算中考虑了重要的核的有限体积效应 ,Breit修正和QED修正 ,所得结果和最近的实验数据及理论计算值进行了比较 ,结果表明 :高原子序数的高荷电离子的自旋禁戒跃迁的跃迁概率和中性原子的电偶极E1的相当 ,在ICF和MCF高温激光等离子体中 ,自旋禁戒跃迁概率过程不容被忽视 .     

类铜Au50+精细结构能级和光谱跃迁的相对论多组态计算

用相对论多组态方法计算了类铜离子Au⁵⁰⁺的精细结构能级和光谱跃迁参数，所得结果很接近实验值．通过对组态选取、有限核模型、Ｂｒｅｉｔ修正和量子电动力学（ＱＥＤ）效应的分析，指出该体系中存在更为明显的ＱＥＤ效应，使４ｓ—４ｐ跃迁波长的计算精度有了很大的提高 关键词：     

溴的类镁离子跃迁谱线和能级扩展分析

用中国原子能科学研究院HI 13串列加速器提供的 90和 130MeV的Br离子和束箔技术 ,研究了波长在 13— 2 9nm范围内Br的类Mg离子的光谱 .识别出 2 4条属于BrXXIV的“3,3”跃迁 ,即 3s2 ,3s3p ,3p2 ,3s3d和 3p3d组态之间的跃迁谱线 ,其中 19条以前未见报道 .基于实验跃迁谱线 ,19个观测能级得以确立 ,其中有 14个能级此前未见报道 .相对论Hartree Fock(HFR)方法的计算结果对所观测的能级进行了解释.The spectrum of Mg-like Br, Br XXIV is investigated by means of beam-foil technique. Bromine ions of 90 and 130 MeV energy from the HI-13 tandem accelerator are used, and the wavelength region 13-29 nm is investigated. In the spectra, 24 Br XXIV transitions within the n=3 complex, i.e. between the 3s 2, 3s3p, 3p 2, 3s3d and 3p3d configurations are identifies, among them 19 have not been reported before. Based on these transition lines 19 energy levels have been determined and 14 energy level...     

类镁离子3s2 1S0-3s3p 3P1(Z=14～103)跃迁的相对论多组态研究

利用全相对论性多组态Dirac-Fock平均能级(MCDF-AL)方法系统计算了高剥离类镁离子互组合线3s2 1S0-3s3p 3P1(Z=14～103)光谱跃迁的能级间隔和跃迁几率.计算中考虑了重要核的有限体积效应及Breit修正和QED修正,所得结果和最近的实验数据及理论计算值进行了比较.结果表明,高原子序数的高荷电离子跃迁的互组合线跃迁几率和中性原子的电偶极E1的相当.在ICF和MCF高温高密度激光等离子体中,互组合线跃迁几率过程不容被忽视.     

Fe XVII离子能级和振子强度的相对论多组态Dirac-Fock计算

本文用相对论多组态的狄拉克-福克(Dirac-Fock)(MCDF)近似方法计算了铁的类氖离子FeXVII的2p~53s,和3p和3d态的所有能级以及3s—3p,3p—3d跃迁的电偶极振子强度f值.理论计算的能级值同实验值的比较表明,使用MCDF方法计算类氖等电子序列的能级会得到与实验值符合得比较好的结果.因无实验数据可作比较,本文得到的振子强度值纯属理论预言值.     

Relativistic calculation of the energy spectrum of Zn-like highly charged ions

Perturbation theory together with a model zeroth-order approximation is used to calculate the energy levels of the 4s4p, 4p², 4s4d, 4p4d, and 4s5s configurations of a number of Zn-like ions with nuclear charges in the range Z = 36–50. The zeroth-order functions of the approximation are the wavefunctions of an electron that moves in the field of the model core potential. The parameters of the model potential are found by using the empirical energy levels of the Cu like ions. The calculation is carried out to first order in the perturbation theory together with the inclusion of an effective account of the higher order corrections. The calculation is accurate to a fraction of a percent.Deceased.Translated from Izvestiya Vysshikh Uchebnyh Zavedenii, Fizika, No. 10, pp. 99–105, October, 1985.The authors thank K. G. Oganov for help in carrying out the numerical work.     

高剥离类钠离子3s2S—3d2电四极矩E2光谱跃迁的理论计算

 利用全相对论性多组态Dirac-Fock平均能级方法系统地计算了高剥离类钠离子3s²S—3d²D(Z=14～103）电四极矩E2光谱跃迁的能级间隔，跃迁几率和振子强度，计算中考虑了核的有限体积效应，Breit修正和QED修正，所得结果和最近的实验数据及理论计算值进行了比较，计算结果表明：高原子序数的高荷电离子的电四极矩E2光谱跃迁的跃迁几率和中性原子的电偶极E1的相当，在ICF和MCF高温高密度激光等离子体中，电四极矩E2光谱跃迁过程不容被忽视。     

Transition energy and dipole oscillator strength of 1s23d- 1s2nf transitions for Sc18+ ion

The transition energies of the 1s²3d-1s² nf (4⩽n⩽9) transitions and fine structure splittings of 1s² nf (n⩽9) states for Sc¹⁸⁺ ion are calculated with the full-core plus correlation method. The quantum defect of 1s² nf series is determined by the single-channel quantum defect theory. The energies of any highly excited states with n⩾10 for this series can be reliably predicted using the quantum defect as function of energy. Three alternative forms of the dipole oscillator strengths for the 1s²3d-1s² nf (n⩽9) transitions of Sc¹⁸⁺ ion are calculated with the transition energies and wave functions obtained above. Combining the quantum defect theory with the discrete oscillator strengths, the discrete oscillator strengths for 1s²3d-1s² nf (n > 9) transitions and the oscillator strengths densities corresponding to the bound-free transitions are obtained. __________ Translated from Chinese Journal of Atomic and Molecular Physics, 2005, 22(4) (in Chinese)     

KrVI离子能级和振子强度的理论计算

利用组态相互作用理论和参数外推法,计算了KrVI离子4s~24p—4s4p~2、4s~24p—4s~24d和4s4p~2—4p~3跃迁的能级、谱线波长和振子强度。与已有实验结果比较表明:波长的理论计算值与观测值在0.7A内很好符合,振子强度的理论计算值较大的跃迁均是实验中观测到的跃迁。     

Transition energy and dipole oscillator strength for 1s22p-1s2nd of Cr2l+ ion

The transition energies, wavelengths and dipole oscillator strengths of 1s^22p-1s^2nd （3 ≤ n ≤ 9） for Cr^21＋ ion are calculated. The fine structure splittings of 1s^2nd （n ≤ 9） states for this ion are also calculated. In calculating energy, we have estimated the higher-order relativistic contribution under a hydrogenic approximation. The quantum defect of Rydberg series 1s^2nd is determined according to the quantum defect theory. The results obtained in this paper excellently agree with the experimental data available in the literature. Combining the quantum defect theory with the discrete oscillator strengths, the discrete oscillator strengths for the transitions from initial state 1s^22p to highly excited 1s^2nd states （n ≥ 10） and the oscillator strength density corresponding to the bound-free transitions are obtained.     

Relativistic calculation of spectra of 2-2 transitions in O- and F-like atomic ions

We have studied theoretically the structure of 1s²2s^n₁2p^n₂ levels in O- and F-like ions with z = 25 ÷ 40. Relativistic perturbation theory is used for the total interelectronic interaction. Allowance is made for Coulomb and relativistic interelectronic interactions. The first order perturbation theory for retardation of the interaction has been calculated fully. The complete calculation has also been made for the nonrelativistic correction in the second order and the Hartree-Fock part of the nonrelativistic correction in the third order. The Hartree-Fock relativistic correction in the second order has been taken into account fully for F-like ions and partially for O-like ions. Corrections to higher orders for z ? 28 have been found empirically and extrapolated to the region z = 29 ÷ 40. For energies of 2-2 transitions, calculation errors for z ? 28 do not exceed 900 cm^-1 and do not increase with z. Typical errors obtained with conventional, more cumbersome calculations are 5000 cm^-1 at z = 30.     

Relativistic calculation of correlational energy for a helium-like atom

An analytical method is formulated for calculating the first-order correlational energy from the electron interaction, taking account of lag effects. Explicit analytical expressions are obtained for radial matrix elements. The nonrelativistic limit is investigated.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 10, pp. 33–35, October, 1985.