Nuclear Data Resources
ENSDF Manuals & Preprints
Nuclear Structure and Decay Data Evaluators' Corner
Revised Guidelines for Evaluators now available. Updated April 2021.
Please also consult the checklist before submitting your mass chain.
Guidelines for performing a review of a mass chain can be found here.
Zipped archived ENSDF files going back through 2004.
Find Q values needed for evaluations.