Tungsten Data

  • Radiative Recombination and Photoionization Data for Tungsten Ions W24+-W45+


    By M. B. Trzhaskovskaya and V.K. Nikulin

    A database on radiative recombination and photoionization data contains partial and total radiative recombination cross sections as well as the partial photoionization cross sections for 20 tungsten ions in the range W24+-W45+ which are important in fusion studies. The electron kinetic energy range is from 1 eV to 80 keV. Also presented are the partial and total radiative recombination rate coefficients and radiated power loss rate coefficients in the temperature range 104 K - 109 K. Calculations have been performed on the basis of the fully relativistic treatment of the photoionization and radiative recombination processes taking into account all significant multipoles of the radiative field.Electron wave functions have been obtained using the Dirac-Fock method.

  • Radiative Recombination and Photoionization Data for Tungsten Ions W14+-W23+ and W47+-W71+


    By M. B. Trzhaskovskaya and V.K. Nikulin

    A database on radiative recombination and photoionization, radiative recombination rate coefficients and radiative power loss rate coefficients for 10 tungsten ions from W14+ to W23+ and 23 ions from W47+ to W71+ (except W56+, W64+, W72+, W73+, W74+ which have been introduced in the database).

  • FLYCHK Rate coefficients for ionization balance at coronal equilibrium


    FLYCHK rate coefficients [cm3/s] of direct collisional ionization(ci), excitation autoionization(ea), radiative recombination(rr) and dielectronic recombination rates(dr) of each ion are calculated as a function of temperature[eV] for plasma modeling applications. The radiative cooling coefficients per charge state per electron density [eV-cm3/s] for each ion are also listed for line radiation (bb) and recombination radiation (bf). For a radiative cooling rate, one should multiply by electron density[cm-3] and the density of the charge state[cm-3]. Note that all caclulations are done at Ne=1cm-3.
    References
    FLYCHK: Generalized population kinetics and spectral model for rapid spectroscopic analysis for all elements, H.-K. Chung, M.H. Chen, W.L. Morgan, Y. Ralchenko and R.W. Lee, High Energy Density Physics, Volume 1, Issue 1, December 2005, Pages 3-12