Establishing and development of atomic data base for astrophysical, technological and laboratory plasma modeling
The idea and goal of our proposal is to create an online open-access database containing theoretical high-precision spectroscopic parameters, electron and photon interaction with ion parameters for the complex atoms and multicharged ions. Data users will be able to download these data for their practical applications or data comparison in order to assess the accuracy of our results. The database will include diverse parameters of atoms and ions: the energy levels, radiative transition wavelengths and rates, autoionization rates, electron-impact excitation and ionization cross-sections and collision strengths, dielectronic recombination rate coefficients. These data are required for modeling of both high-temperature (nuclear fusion and astrophysical) and low-temperature plasma such as planetary nebulae or working component of medical or spectroscopic diagnostic devices. Quite a lot of calculations of the spectral parameters for various chemical elements have been reported over many years. Unfortunately, their use in plasma modeling is restricted, since the data are not consistent, the energy levels for radiative transitions between discrete levels are calculated with different software packages, applying different approximations to include correlation and relativistic effects comparing to data of electron scattering processes. These differences cause incompatible energy level arrangement for the above-mentioned sets of atomic data and substantially complicate practical data applications. During the project implementation, the theoretical calculations will be performed exploiting the same software packages and using consistent approach to account for electron correlations and relativistic effects. This will facilitate data use by plasma modelers. Established database will increase number of our high-accuracy atomic data users by allowing simple and automated data transfer to plasma simulation codes. Coupled with virtual atomic data centers and virtual observatories, the outlined system will yield a breakthrough in the field.
Duration: 2012-2015 m.
Head: prof. Pavel Bogdanovich