Theoretical energy level spectra and transition data for 4p64d2, 4p64d4f, and 4p54d3 configurations of W36+

Radiative transitions for three lowest configurations of tungsten ions W38+–W43+

“…Our earlier studies of the highly-charged tungsten ions (see, e.g. [5,6]) clearly demonstrated a suitability of the quasirelativistic approach (QR) for the calculation of spectroscopic properties for highly-charged tungsten ions with open 4d N shells. In a similar way, the spectroscopic parameters of the W 39+ ion with the ground configuration 4s 2 4p 5 were determined and their accuracy was assessed in our previous work [7].…”

“…[5,6]) clearly demonstrated a suitability of the quasirelativistic approach (QR) for the calculation of spectroscopic properties for highly-charged tungsten ions with open 4d N shells. In a similar way, the spectroscopic parameters of the W 39+ ion with the ground configuration 4s 2 4p 5 were determined and their accuracy was assessed in our previous work [7]. In that study the level energies and radiative transition parameters were calculated and compared with available experimental [8][9][10] and theoretical data from other sources [9,11,12].…”

Energy spectra of the tungsten ion 4s24pN, 4s24N–14d and 4s4pN+1 configurations

“…The virtually excited electrons with n > 4 are decribed by the quasirelativistic transformed radial orbitals (TRO) [20]. Like in the previous investigations of tungsten ions [13][14][15][16], the variable parameters of TRO are determined by ensuring the maximum value of the correlation correction. TRO are determined for the radial orbitals with the principal quantum number 5 ≤ n ≤ 10 and with all possible values of the orbital quantum number l.…”

“…The details of the quasirelativistic approximation are decribed in more detail in [20]. A brief description of our quasirelativistic method is given in [14,15].…”

“…In Section 2 we provide a short description of the adopted calculation method. Since this approximation completely matches the one applied for the tungsten investigation in [13][14][15][16], here we provide only a brief summary of our quasirelativistic approach. The calculation results are discussed and compared with the results of other authors in Section 3.…”