Origin of Lβ20 satellite in higher Z elements

Frontiers of Physics and Plasma Science

Trivedi, Rajeev K.^1 ; Kendurkar, Renuka^2 ; Shrivastava, B.D.^2

Alpine Institute of Technology, Ujjain

456010, India^1

School of Studies in Physics, Vikram University, Ujjain

456010, India^2

关键词: Ab initio calculations;    Alternative calculations;    Experimental values;    Hartree fock slaters;    Intermediate element;    Linear Interpolation;    Semi-empirical calculation;    Transition energy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/836/1/012051/pdf
DOI  :  10.1088/1742-6596/836/1/012051

来源: IOP

【 摘 要 】

One of the satellite lines accompanied with the intense diagram line Lβ2(L3-N5) on the higher energy side, is the satellite β20in the elements from71Lu to84Po,88Ra,90Th and92U. Shahlot and Soni have theoretically investigated this satellite and have found all the possible transitions using jj coupling scheme using Hartree-Fock-Slater formulae. A perusal of their results shows that in some cases the agreement between theoretical and experimental values is not so good. Hence, in the present investigation we have tried alternative calculations by using the tables of Parente et al. While these calculations are relativistic ab initio calculations, those of Shahlot and Soni are non-relativistic semi-empirical calculations. Considering the same grouping of transition schemes as assigned by Shahlot and Soni, calculations have been done by us using the tables of Parente et al, which gives the values of transition energies only for the 11 elements. The transition energies for intermediate elements have been calculated by us by linear interpolation method. Our calculations show better agreement with the experimental values than that obtained from the values of Shahlot and Soni. However, in some cases, our calculations also do not yield good results and this has been discussed.