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.

•   OPEN-ADAS is 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. Registration is required but the access is cost free.

• ICTP-IAEA Workshop on "Atomic and Molecular Data for Fusion" 
  20-30 April, 2009, ICTP, Trieste, Italy
  The A+M Data Unit is pleased to announce a joint ICTP-IAEA workshop on atomic and molecular data for fusion to be held on 20-30 April, 2009 at the ICTP facility in Trieste, Italy. The workshop is meant to be a training workshop to young researchers with an interest to expand their knowledge of A+M data relevant to fusion. See the URL for more information and online application to the workshop.

• Databases on Atomic and Molecular Data for Fusion.
  1. ALADDIN
  2. The bibliographical database AMBDAS
  3. Rovibronic energy levels for triplet electronic states of molecular deuterium (December 2007)
     B. P. Lavrov and I. S. Umrikhin, Faculty of Physics, St.-Petersburg State University
     Numerical data and report
  4. 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)

• GENIE for GENeral Internet search Engine allows a multiple search on different databases on the web for spectral and collisional atomic data for fusion and atomic physics research. The new version includes requests for dielectronic recombination data.

• Online Computing
  1. 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.
  2. 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
  3. 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.
  4. 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.

• XSAMS: XML Schema for Atoms, Molecules and Solids   
  

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.

The A+M Data Unit staff