Overview of Atomic and Molecular Data Unit Activities
The Atomic and Molecular Data Unit operates within the Nuclear Data Section of the International Atomic Energy Agency, Vienna, Austria.The primary objective of the Atomic and Molecular Data Unit is to establish and maintain internationally recommended numerical databases on atomic and molecular collision and radiative processes, atomic and molecular structure characteristics, particle-solid surface interaction processes and physico-chemical and thermo-mechanical material properties for use in fusion energy research and other plasma science and technology applications.
Databases on Atomic and Molecular Data for Fusion.
- ALADDIN The atomic and molecular, plasma-surface interaction database
- AMBDAS The bibliographical database
- GENIE A search engine on different databases on the web for spectral and collisional atomic data for fusion and atomic physics research.
- OPEN-ADAS A joint development between the ADAS Project and the IAEA to provide extensive access to fundamental and derived atomic data for fusion from the ADAS project and its related databases.
- Rovibronic energy levels for triplet electronic states of molecular
deuterium (December 2007)
B. P. Lavrov and I. S. Umrikhin, St.-Petersburg State University
Numerical data and report
- Franck-Condon Factors, Transition Probabilities and Radiative
Lifetimes for Hydrogen Molecules and their Isotopomeres, U. Fantz, D. Wünderlich (May 2004).
Numerical data and report (INDC (NDS) 457)
Online Computing
- Heavy Particles collisions
Cross sections for excitation
and charge transfer for collisions between hydrogenic targets and bare ions can be
calculated online. Potential users are asked to request a user name and password.
- Los Alamos atomic physics codes
An interface is available to run several Los Alamos atomic physics codes for calculation of atomic structure, electron impact excitation, as well as ionization processes. Since 2010, atomic data sets of argon, chlorine and silicon produced by a group at LANL can be downloaded for all ionization stages.
- Average Approximation is an interface to
average approximation cross sections for calculating electron impact cross sections for atomic ions.
This is expected to be useful in generating cross sections of reasonable accuracy when
more accurate cross section data is not available.
- Rate coefficients
Results from collisional radiative calculations of plasmas carried out with the Los Alamos
modeling codes are available. Interpolations allow the user to obtain total radiated
power, average ion charge, and relative ionization populations in a steady state plasma.
The IAEA Atomic and Molecular Data Unit achieves its objectives by coordinating the
activities of the International Atomic and Molecular Data Center
Network(DCN), initiation and conducting international Coordinated
Research Projects (CRP), organization of various types of Expert's
Meetings, and using other forms (research contracts, research agreements, consultancies)
for stimulation of the generation, collection and critical assessment of the required
atomic, molecular (A+M) and plasma-material interaction (PMI) data information.
The activity of the IAEA Atomic and Molecular Data Unit is supervised and biennially
reviewed by the Subcommittee on Atomic and Molecular Data for Fusion of the International
Fusion Research Council (IFRC A+M Subcommittee), an advisory body
to the Agency's Director General.