Abstract
The National Institute for Fusion Science (NIFS) has compiled and developed atomic and molecular numerical databases for various collision processes and makes it accessible from the internet to the public. The database contains numerical data of cross sections and rate coefficients for electron collision or ion collisions with atoms and molecules, attached with bibliographic information on their data sources. The database system provides query forms to search data, and numerical data are retrievable. The graphical output is helpful to understand energy dependence of cross sections and temperature dependence of rate coefficients obtained by various studies. All data are compiled mainly from published literature, and data sources can be tracked by the bibliographic information. We also have data of sputtering yields and back-scattering coefficients for solid surfaces collided by ions in the database. All data in the database are applicable to understand atomic and molecular processes in various plasmas, such as fusion plasma, astrophysical plasma and applied plasma, as well as for understanding plasma–surface interaction in plasmas.
Highlights
Cross sections of elementary atomic processes, such as electron-impact ionization, are important to describe and understand the behavior of atoms in plasma
Succeeding studies on data compilation for atomic and molecular collision cross sections and data on plasma-surface interaction were published as IPPJ-AM reports from 1977 to 1989 [3] and NIFS-DATA reports [4] since 1989 when the institution was reorganized from IPPJ to the National Institute for Fusion Science (NIFS)
Numerical atomic databases are useful for various users and the progress on computers, database systems, and computer network can provide more convenient tools for uses to find necessary data for their research
Summary
Cross sections of elementary atomic processes, such as electron-impact ionization, are important to describe and understand the behavior of atoms in plasma. Atomic Data Interface) database [11] which has evaluated cross sections and rate coefficients for atomic and molecular collision processes and particle-surface interaction data stored with ALADDIN format [12]. OPEN-ADAS [15] is the database of basic data and some derived data from ADAS (the Atomic Data and Analysis Structure) on spectroscopic diagnostics for fusion and astrophysical plasmas including electron-impact excitation and ionization rate coefficients and charge-exchange cross sections of ion–atom collisions [16]. Obtained data are useful to evaluate theoretically-calculated data Atomic and molecular data on collision processes, which are important for plasma physics and fusion science are primarily compiled from publications in refereed journals. Details of the database system are described and data evaluation activities using the database are introduced
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