NNDC Databases

Nuclear Structure and Decay Databases

Database	Contents	Search Parameters*	Retrieved Information
ENSDF Evaluated Nuclear Structure Data File	Core nuclear structure and decay database containing evaluated (recommended) data for 3,171 nuclides, organized in over 17,269 individual datasets. It serves as principal source of data for nuclear structure research, nuclear spectroscopy applications, MIRD, NuDat, and publications such as Nuclear Data Sheets and Table of Isotopes.	Nuclide Nuclear reaction Nuclear decay	File containing datasets, in the ENSDF format or displayed as Nuclear Data Sheet style tables and drawings.
MIRD Medical Internal Radiation Dose	Evaluated nuclear decay data for over 2,100 radioactive nuclei. Data are extracted from ENSDF, processed by the program RadList, and used for medical internal radiation dose calculations.	Nuclide	Decay scheme and decay radiation in MIRD format.
NuDat Nuclear structure and decay data	Evaluated (recommended) nuclear structure and decay information for 3,175 nuclides, about 161,895 levels, 243,639 gamma-rays, etc. Obtained from ENSDF and Nuclear Wallet Cards.	Nuclide Nuclear level properties Gamma-ray properties Gamma-ray coincidences Nuclear decay Decay radiation	List of nuclei, levels, gammas, decay modes, and decay radiation. It includes an interactive chart of nuclides and a level plotting tool.
XUNDL Experimental Unevaluated Nuclear Data List	Experimental nuclear structure and decay data, covering more than 2,500 recent nuclear structure and decay articles. The XUNDL database contains 4,212 datasets for 1,990 nuclides.	Nuclide Nuclear reaction Nuclear decay	File containing datasets, in the ENSDF format or displayed as Nuclear Data Sheet style tables and drawings.

Nuclear Reaction Databases

Database	Contents	Search Parameters*	Retrieved information
EXFOR Nuclear reaction experimental data	Experimental nuclear reaction data for incident neutrons, charged particles, and photons. It covers more than 19,047 experiments and spans over nearly all neutron-induced reaction experiments.	Target Beam Produc Nuclear reaction Energy Experimental method Authors Publication	Files containing nuclear reaction data such as cross sections, spectra, angular distributions, polarizations, etc., along with information on experimental technique, error analysis, and applied standards.
ENDF Evaluated Nuclear (reaction) Data File	Core nuclear reaction database containing evaluated (recommended) data from the ENDF/B-VII library (also JEFF, JENDL, ENDF/B-VI, BROND, ROSFOND and CENDL). It provides data in the ENDF-6 format, covering all nuclides of practical relevance (393 in total) for neutrons up to 20 MeV and partly up to 150 MeV. It serves as principal input for neutronics calculations, including nuclear reactor design, national security, accelerators, criticality safety, shielding, radiation protection and detector simulation.	Target Beam Product Nuclear reaction Energy Library	Files with reaction cross sections, particle and photon spectra, angular distributions, double-differential cross sections, fission yields and covariances (not all of these quantities are available for all materials); entire ENDF evaluation for a given material; comparison plots including experimental data.
RIPL Reference Input Parameter Library	Input parameters for theoretical calculations of nuclear reactions.	Nuclide	Atomic Masses Fission Barriers GDR parameters Level density parameters Neutron resonances Nuclear Deformation parameters Optical Model parameters
Sigma ENDF Retrieval & Plotting	Evaluated (recommended) nuclear reaction and decay data from ENDF/B-VII.0, JEFF-3.1, JENDL-4.0, JENDL-3.3, CENDL-3.1, ROSFOND 2008 and ENDF/B-VI.8 libraries. Advanced plotting, browsing, and search options.	Target Beam Nuclear reaction Library	Files with reaction cross sections, particle and photon spectra, angular distributions, double-differential cross sections, fission yields and covariances (not all of these quantities are available for all materials); entire ENDF evaluation for a given material; comparison plots including experimental data.

Bibliography Databases

Database	Contents	Search Parameters*	Retrieved information
CINDA Computer Index of Nuclear (reaction) Data	Bibliographical neutron induced reaction information, including experimental, theoretical and evaluation works. It contains references to 275,000 reactions from 55,000 works.	Target Product Nuclear reaction Measured Quantity Energy Author Publication	List of articles. Links to EXFOR file and to online journal articles are provided.
NSR Nuclear Science References	Bibliographical nuclear physics information containing more than 200,000 nuclear science articles, indexed according to content. It spans for more than 100 years of research, and currently covers 80 journals with about 3,800 new articles added each year.	Nuclide Author Nuclear reaction Nuclear decay Subject Journal Publication	List of articles with short content description indicating measured, evaluated or calculated quantities. Links to online journal articles are provided.
* Abridged list of search parameters due to space limitations. For instance, nuclide means: nuclear name, Z, A, N, Z-range, A-range and N-range. The help file on each database describes in full all the possible search parameters.