Attempt has been made to explain the origin of Lβ2I satellite, which occurs on the higher energy side of the diagram line Lβ2, in the L-emission spectra of elements with Z ≥ 71. Earlier, Nigam and Mathur have assigned the transition L3M5 - M5N5 to the satellite on the basis of the calculations of energies using (Z+1) approximation. Poonia and Soni have assigned different transitions to the satellite in the elements with Z = 74 to 77 and in the elements with Z = 78 to 90. Shahlot has suggested that the satellite is emitted by the average of transition arrays L3Mx-MxN5 (x=3, 2, 1), named as A3, A4 and A5 respectively. In the present work, we have done two types of calculations. Firstly, we have used (Z+1) approximation to calculate the values of energies. Secondly, we have used the theoretically calculated values of energies of transitions in multiply ionized atoms as given by Parente at el. in their tables for eleven elements. The average of energy values of A3, A4 and A5 transition schemes is taken as value for the satellite in both the methods. The theoretical results have been compared with the experimental results.

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