Nuclear Structure and Decay Data

National Nuclear Data Center,
Brookhaven National Laboratory,
Upton, NY 11973-5000

The new NNDC Home Page is here.

Data Files, Manuals, Proceedings, Programs, and Reports

Data Files
2003 Atomic Mass Evaluation
Citation Guidelines for Nuclear Data Retrieved from Databases Resident at Nuclear Data Centers Network
Evaluated Nuclear Structure Data File (ENSDF) Formats Manual
ENSDF Format Summary and Examples
Nuclear Science References Coding Manual
COMTRANS - Nuclear structure evaluator tool for translating comments in ENSDF from the all upper case form to the currently approved upper/lower case form
ENSDF analysis and utility programs
ENSDAT - Produces tables and drawings of nuclear structure and decay data
PCNuDat - A Windows clone of the NNDC database NuDat containing adopted level and gamma-ray properties, ground and metastable state properties, decay radiations, and thermal neutron cross sections and resonance integrals
Reports and Preprints
Magnetic Dipole Rotational Bands (06/01/2001)
Nuclear Moments (Preprint. 04/11/2001)
Superdeformed Bands & Fission Isomers

NNDC Web Data Access

Evaluated Nuclear Structure Data File (ENSDF)
Experimental Unevaluated Nuclear Data List (XUNDL)
MIRD - Tables and drawings of nuclear decay data in the Medical Internal Radiation Dose format.
Nuclear Data File (NuDat)
Nuclear Science References (NSR)
Nuclear Wallet Cards (Sixth edition, January, 2000)
Physics Calculational Tools
Internal Conversion Coefficients and Log fts
Decay Q-values and Reaction Q-values and Threshold Energies
Proton Radioactivity Resources Site at the NNDC
Thermal neutron capture gamma's (05/01/2004) Modified
Energy ordered tables
Target nuclide ordered tables

International and U.S. Nuclear Structure and Decay Data Networks

International Nuclear Structure and Decay Data Network
US Nuclear Data Program


The National Nuclear Data Center is funded by the Division of Nuclear Physics, Office of High Energy and Nuclear Physics, US Department of Energy.