Atomic Mass Data Center

NNDC Atomic Masses and Q-value Calculator are based on the AMDC 2003 Atomic Mass Evaluation.
The Atomic Mass Data Center Web site is maintained by G. Audi (CSNSM Orsay, France) and hosted by the IAEA Nuclear Data Section (Vienna, Austria). Its major new products are the "Ame2003 Atomic Mass Evaluation" and the "Nubase2003" evaluation, published by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
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2012 Nubase and AME publications

The NUBASE2012 evaluation of nuclear properties
The AME2012 atomic mass evaluation - part 1
The AME2012 atomic mass evaluation - part 2

New 2011 evaluation results

New evaluation results have been made available in April 2011 by Georges Audi and Wang Meng:
The Ame2011-preview is given as 3 tables and a series of figures.
Data are preliminary and are given with the "not published" status. When needed they can be quoted as: Private Communication April 2011 by Georges Audi and Wang Meng.

Other Data at the AMDC

ENSDF (Evaluated Nuclear Structure and Decay File): As a help for the AMDC users, the ENSDF files downloaded from BNL, are accessible in the "ens" subdirectory.

AMDC webmaster, G. Audi,
AMDC host,

Last updated: May 3rd, 2011