This is the legacy website for the Atomic and Molecular Data Unit.
The latest information about our activities can be found at https://amdis.iaea.org.
Existing data services at this location function as usual.

Databases on Atomic, Molecular and Plasma-Surface Interactions

Databases maintained by the IAEA A+M Data Unit
Databases accessed through GENIE
Other A+M and PSI databases relevant to Fusion
Further lists of databases for A+M and PSI data

Databases maintained by the IAEA A+M Data Unit

AMBDAS Bibliographic Database

Since about 2000 the data in AMBDAS have been provided almost exclusively by two institutions:

Controlled Fusion Atomic Data Centre (CFADC), Oak Ridge National Laboratory, Oak Ridge, TN, USA (collision data including PSI);
National Institute for Standards and Technology (NIST), Gaithersburg, MD, USA (spectroscopic data).

Previously data were also provided by:

Kurchatov Institute of Atomic Energy, Moscow, Russia
National Institute for Fusion Science, Nagoya, Japan
Universite de Paris XI, (Paris-Sud), Orsay, France
Nuclear Data Section, IAEA, Vienna, Austria

ALADDIN Numerical Database

ALADDIN includes data on particle interactions, photon collisions, and particle-surface interactions. Most data in ALADDIN were obtained as a result of Coordinated Research Projects organized by the IAEA Atomic and Molecular Data Unit.

Databases accessed through GENIE

GENIE (GENeral Internet search Engine) allows a simultaneous search on multiple databases for spectral and collisional atomic data for fusion and atomic physics research. The following databases are included in the search.

Spectroscopic databases accessible through GENIE

Collision processes databases accessible trough GENIE

Other A+M and PSI databases relevant to Fusion

In addition to the databases listed above, including those accessed through GENIE, the following are of interest.

OPEN-ADAS

OPEN-ADAS is a development by the Atomic Data and Analysis Structure (ADAS) project supported by the IAEA to provide open access to fundamental and derived atomic data for fusion from ADAS and its databases. Registration is required but the access is cost free.

Rovibronic energy levels for triplet electronic states of molecular deuterium

Numerical data compiled by B. P. Lavrov and I. S. Umrikhin (2007). Journal reference: B. P. Lavrov and I. S. Umrikhin, J. Phys. B: At. Mol. Opt. Phys. 41 (2008) #105103. See also the unpublished report.

Franck-Condon Factors, Transition Probabilities and Radiative Lifetimes for Hydrogen Molecules and their Isotopomeres

Calculated data provided by U. Fantz, D. Wünderlich. Detailed description in the report INDC (NDS) 457. Journal reference: U. Fantz and D. Wünderlich, Atomic Data and Nuclear Data Tables 92 (2006) pp. 853-973.

NIFS Database

The atomic and molecular physics database at the National Institute for Fusion Science, Japan, offers numerical data for (1) cross sections and rate coefficients for ionization, excitation, and recombination by electron impact; (2) charge transfer by heavy particle collision and collision processes of molecules; (3) sputtering yields of solids and back scattering coefficients from solids. The site also provides bibliographical databases for fusion and plasma sciences, atomic and molecular physics, and atomic collision processes.

NIST Physical Reference Data

In addition to the Atomic Spectroscopy Databases, some of which may be accessed through GENIE, NIST offers many other databases including molecular spectroscopy data and other atomic and molecular data.

Harvard-Smithsonian databases

The Harvard-Smithsonian Center for Astrophysics hosts several databases including the HITRAN database for molecular spectroscopy.

EIRENE atomic, molecular and PSI data

Includes many data relevant for modelling of fusion experiments: atomic and molecular data (including the HydHel hydrogen-helium database and several hydrocarbon datasets) and plasma-surface interaction data.

Controlled Fusion Atomic Data Center

The Controlled Fusion Atomic Data Center (CFADC) at Oak Ridge National Laboratory is a principal source of bibliographical data for AMBDAS. They host several numerical databases too.

NORAD Atomic Data

Calculated atomic data by Sultana N. Nahar, Department of Astronomy, The Ohio State University. Data include energies, radiative transitions, photoionization, electron-ion recombination, and lifetimes.

CHIANTI atomic database

The CHIANTI atomic database contains energy levels, wavelengths, transition probabilities and electron collision cross-sections suitable for calculating emission line spectra from optically thin plasmas. Many ions from elements up to and including zinc are included, and all data are critically evaluated and made freely available to the community.