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1.
类镍序列3d^94s,3d^94p,3d^94d组态原子参数的计算   总被引:4,自引:2,他引:2  
陈明伦  李孝昌 《计算物理》1996,13(4):398-402
用多组态自治场方法,结合我们提出的半经验拟合公式,系统计算了类镍等电子的序列NiI-XeXXⅦ离子3d^94s,3d^94p,3d^94d组态的能级,波长和振子强度,并与实验符合得较好。  相似文献   

2.
稀土离子与二棕榈酰磷脂酰胆碱相互作用的FT—IR研究   总被引:1,自引:0,他引:1  
利用傅里叶变换红外光谱法研究了稀土离子Sm^3+,Gd^3+,Er^3+和Yb^3+与二棕榈酰磷脂磷胆碱脂质体的相互作用,结果表明:稀土离子间磷脂极性头部的PO^-2和N^+(CH3)3基闭间有较强的静电作用,而且这些作用随着稀土子摩尔比例的增大而加强,稀土离子与磷脂相互作用程度按稀土离子原子序数增大即Sm^3+<Gd^3+<Yb^3+的顺序排列。  相似文献   

3.
通过能级的实验值与HFR方法的理论值之差沿等电子序列进行最小二乘拟合的方法,对46≤Z≤50的类镍离子3d ̄94s、3d ̄94p、3d ̄94d组态及51≤Z≤55的类镍离子3d ̄94d、3d ̄94p组态能级进行计算。根据能级的拟合值算出相应的电偶极跃迁的谱线波长,并给出各谱线的HFR理论振子强度。  相似文献   

4.
镁Mg2s^21S0—3s3d^1D2单光子电四极矩跃迁的研究   总被引:2,自引:2,他引:0  
用原子束技术-激光共振电离-飞行时间质谱探测离子信号的方法,观察到了原子束中镁Mg3s^21S0-3s3d^1D2单光子电四极矩共振跃迁,并对实验结果进行了判断和分析。  相似文献   

5.
类锗离子Ru^1^2^+到Cd^1^^^+4s^24p^2,4s4p^3,4s^24p5s组…   总被引:1,自引:1,他引:0  
用MCHFR自洽场方法,结合自行设计的最小二乘拟合程序,计算了与软X射线激光研究有关的类锗离子Ru^1^2^+到Cd^1^6^+的4s^24p^2,4s4p^3,4s^24p5s组态能级,波长和振子强度。计算结果与实验进行了比较。  相似文献   

6.
类氦铝离子软X射线激光   总被引:4,自引:4,他引:0  
沈百飞  徐至展 《光学学报》1995,15(3):72-275
通过一系列的数值计算,确定了实现类氦铝离子3d^1D2-2p^1P1跃迁激光增益的最佳等离子体条件,并提出了用辐射冷却的方法为实现所需的等离子体条件。  相似文献   

7.
郭文跃  方黎 《光学学报》1998,18(5):19-526
用多光子电离飞行时间质谱法三光子与丙酮分子3d形态和4s态共振的激光波长区域获得了丙酮分子的共振多光子电离分质量多光子电离(MPI)光谱和飞行时间质谱,实验观察到的主要产物是CH3CO^+和CH^+3,还观察到了少量的C^+,CH^+,CH^+2和CHO^+,在实验的激光波长范围内未见到母体离子,分质量多光子电离光谱具有相似的光谱结构,几个主要谐峰分别对应着(n0,3d)和(n0,4s)里德堡跃迁  相似文献   

8.
用等电子序列高离化态离子能级△E随Zc的一般拟合公式,系统计算了中Z段49≤Z≤53类钴离子的能级,并给出了3d^9-3p^10,3d^10,3d^9-3d^84p跃迁的波长和振子强度。  相似文献   

9.
通过分析类铁等电子序列AsⅧ-SrⅫ离子的能级结构,找出△E随Zc的变化规律,系统计算了AsⅧ-SrXXVIII离子3p^6d^8和3p^53d^9组态的能级和跃迁波长,与实验结果进行了比较。  相似文献   

10.
研究了稀土五磷酸盐GdxY1-x)P5O14:Ce0.01,Tb0.02体系中以Gd^3+子晶格为中介的Ce^3+→Gd^3+→Tb^3+的能量传递现象。当x>0.7,在室温下激发Ce^3+离子可以产生有效的Tb^3+的发光。对x=1和0时,激发Ce^3+产生Tb^3+的发光,前者的强度约为后者的10倍。  相似文献   

11.
Optics and Spectroscopy - Probabilities of electric-dipole 3d94p → 3d10, 3d94s transitions in the spectra of nickel-like ions Cd XXI, In XXII, and Sn XXIII are calculated semiempirically in...  相似文献   

12.
用多组态自洽场方法,结合我们提出的半经验拟合公式,对40≤Z≤44类镍离子3d94s,3d94p,3d94d态的能级进行计算,根据能级拟合值算出s-p,p-d跃迁的谱线波长,并给出各谱线的HFR振子强度.  相似文献   

13.
Mo XIV离子精细结构能级和辐射寿命   总被引:9,自引:0,他引:9  
用全相对论多组态自洽场方法 ,计算了类铜离子MoXIV的 1s ,2s ,2p- ,2p ,3s,3p- ,3p ,3d- ,3d ,4s,4p- ,4p ,4d- ,4d ,4f- ,4f,5s,5p- ,5p ,5d- ,5d ,5f- ,5f ,5g- ,5g ,6s,6p- ,6p ,6d- ,6d ,6f- ,6f,6g- ,6g ,6h- ,6h ,7s,7p- ,7p ,7d- ,7d ,7f- ,7f,7g- 和 7g轨道的 15 0 8个精细结构能级和辐射寿命以及其它各种跃迁参数 ,能级的计算值和实验值符合得很好 .另外还发现了一些寿命较长的能级. Energy levels, radiative lifetime and various transition parameters for allowed transitions among the 1 508 fine-structure levels belong to the (1s 22s 22p 63s 23p 6) 3d 104l, 3d 94l 2, 3d 105l, 3d 94l4m, 3d 106l, 3d 107l and so on configurations of the Cu-like ions Mo XIV have been calculated by using the expanded fully relativistic GRASP code. The results are compared with those available in the literature, and the accuracy of the present data is assessed. En...  相似文献   

14.
在气温1 100℃下,将纯天然无水芒硝(Na2SO4)和Cu的混合粉末加热20 min,制备了Na2SO4:Cu发光材料.在室温中测量了光致发光谱.通过实验结果发现发射光谱形状依赖于激发波长,在260nm激发下的发射光谱是由峰值位于430 nm处的宽带谱构成,所得到的宽带谱归属于Cu+内电子的3d94s→3d10跃迁....  相似文献   

15.
高Z等离子体中的双电子复合与电子碰撞激发   总被引:1,自引:1,他引:0       下载免费PDF全文
 采用准相对论性Hartree-Fock-Relativistic方法与不可分辨跃迁组模型相结合,对Au和Ta元素的类Ni离子的双电子复合速率,以及Au元素类Cu离子的电子碰撞激发速率进行了计算。计算结果表明,对于Au类Ni离子的3d10-3d94l5f-3d104l双电子复合过程以及类Cu离子的3d104l-3d94l5f电子碰撞激发过程,当电子温度高于1.0 keV时,电子离子碰撞激发速率随电子温度增加而增加,双电子复合速率随电子温度增加而减小,并且电子碰撞激发对谱线辐射的贡献要比双电子复合大得多。  相似文献   

16.
We consider the process at a linear collider with transverse beam polarization. We investigate the influence of the CP phases on azimuthal asymmetries in with subsequent two-body decays and . We show that triple product correlations involving the transverse beam polarization vanish if at least one subsequent chargino decay is not observed. We derive this result within the minimal supersymmetric standard model (MSSM) with complex parameters; however, it holds also in the general MSSM with SUSY flavor violation.Received: 29 March 2004, Published online: 30 July 2004  相似文献   

17.
杨天丽  蒋刚  朱正和 《中国物理》2004,13(6):850-854
The rate coefficients α^{DR} of dielectronic recombination (DR) for Cu-like Au^{50+} ion collided with the incident free electron are calculated based on the quasi-relativistic multi-configuration Hartree-Fock theory. The results clearly show that the α^{DR} of all recombination channels exhibits resonance characters with electron temperature. At lower temperatures, the recombination for electrons caused by 4s excitation is dominant through outer electron radiative transitions among the intermediate doubly excited autoionizing levels, in which the most components come from 3d^{10}5pns states, whereas with increasing electron temperature, DR caused by 3d excitation turns out to be dominant, and the contribution from the 3d^94s4fnf state to the total rate coefficient of electron 3d is the largest with α^{DR}=1.15×10^{- 11} cm^3·s^{-1} at an electron temperature of T_e=0.35 keV. Under this condition, there exists a strong competition between the two types of recombination channels.  相似文献   

18.
We consider the Beltrami equation for hydrodynamics and we show that its solutions can be viewed as instanton solutions of a more general system of equations. The latter are the equations of motion for an sigma model on 4‐dimensional worldvolume (which is taken locally HyperKähler) with a 4‐dimensional HyperKähler target space. By means of the 4D twisting procedure originally introduced by Witten for gauge theories and later generalized to 4D sigma‐models by Anselmi and Fré, we show that the equations of motion describe triholomophic maps between the worldvolume and the target space. Therefore, the classification of the solutions to the 3‐dimensional Beltrami equation can be performed by counting the triholomorphic maps. The counting is easily obtained by using several discrete symmetries. Finally, the similarity with holomorphic maps for sigma on Calabi‐Yau space prompts us to reformulate the problem of the enumeration of triholomorphic maps in terms of a topological sigma model.  相似文献   

19.
20.
污泥在循环流化床炉内的燃烧和污染排放特性   总被引:2,自引:1,他引:1  
本文介绍了在100吨/日循环流化床垃圾焚烧炉上进行的工业污水处理厂干化污泥和城市污水处理厂干化污泥焚烧结果。对焚烧产生的烟气中的污染物烟尘、氮氧化物、二氧化硫、氯化氢、汞、镉、铅和二恶英等排放浓度所进行的测试结果表明,采用循环流化床炉焚烧干化污泥,在炉内加石灰石情况下,烟气排放能达到我国生活垃圾焚烧污染控制标准。  相似文献   

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