Spectr-W³ online database on atomic properties of multicharged ions

Abstract

Abstract. The Spectr-W 3 information-reference system was developed in 2001-2013 and realized as an online Web resource based on the factual atomic database Spectr-W 3 . The information accumulated in the Spectr-W 3 atomic database contains about 450,000 records and includes the experimental and theoretical data on ionization potentials, energy levels, wavelengths, radiation transition probabilities, and oscillator strengths, and the parameters of analytical approximations of electron-collisional cross-sections and rates for atoms and ions. Those data were extracted from publications in physical journals, proceedings of the related conferences, special-purpose publications on atomic data, provided directly by authors. The information is supplied with references to the original sources and comments, elucidating the details of experimental measurements or calculations. To date, the Spectr-W 3 atomic database is still the largest factual database in the world, containing the information on spectral properties of multicharged ions. In 2014, the new stage in the development of the Spectr-W 3 atomic database started. The purpose of this stage is the creation of a new information section of the Spectr-W 3 database. This section would contain the information on the x-ray emission spectrograms registered from various plasma sources.