NNDC Tools and Publications

Nuclear Structure and Decay Tools

2020 Atomic Mass Evaluation Atomic mass evaluation, by Wang, Audi, Kondev, Huang, Naimi, and Xu.
Band-Raman Internal Conversion Coefficents Internal conversion coefficient values as a function of gamma energy and multipolarity. Calculations based on I.M. Band and S. Raman internal conversion coefficents tables.
ββ-decay Double beta decay data.
B(E2; 0+ → 2+) Values Recent data on electric quadrupole transition probabilities or B(E2; 0+ → 2+) values
CapGam List of gamma-rays (energy and intensity) following thermal neutron capture on a given target.
Evaluators' Corner Nuclear Structure and Decay Data Network
LogFT Beta decay log ft calculations
Q-Calc Atomic masses, decay Q-values, reaction Q-values and threshold energies.

Nuclear Reaction Tools

2020 Atomic Mass Evaluation The 2020 atomic mass evaluation, by Wang, Audi, Kondev, Huang, Naimi, and Xu
CapGam List of gamma-rays (energy and intensity) following thermal neutron capture on a given target
MACS & Astrophysical Reaction Rates Maxwellian-Averaged Cross Sections (MACS) and Astrophysical Reaction Rates
Q-calc Atomic masses, decay Q-values, reaction Q-values and threshold energies
Simulation Codes Radiation transport simulation codes
  • GEANT - Detector Description and Simulation Tool (CERN, Switzerland)
  • MCNP - Monte Carlo transport code for photons, neutrons, and electrons (LANL, USA)

Major Publications

Atlas of Neutron Resonances
Nuclear Data Sheets Nuclear structure and decay data journal.
Nuclear Wallet Cards Ground and isomeric states properties.

Manuals

ENDF-102
(2.7 MB pdf) 		ENDF-6 data formats and procedures for the Evaluated Nuclear Data File ENDF/B-VI.
ENDF-201
(741 kB pdf) 		ENDF/B-VI summary documentation, including Supplement I: ENDF/HE-VI summary documentation.
ENSDF
(670 kB pdf) 		Evaluated Nuclear Structure Data File manual.
NSR
(140 kB pdf) 		Nuclear Science Reference coding manual.