ENSDF - NuDat Alejandro Sonzogni Needs and Links to ENSDF/NuDat Alejandro Sonzogni National Nuclear Data Center Brookhaven National Laboratory Upton, NY

ENSDF - NuDat Alejandro Sonzogni ENSDF: Evaluated Nuclear Structure Data File Goal: to contain recommended (evaluated) nuclear structure and decay data for all known nuclei (2935) More than 40 contributors worldwide, grouped in NSDD Web: NSDD: Results published in Nuclear Data Sheets

ENSDF - NuDat Alejandro Sonzogni Level Properties:  Energy  Half-life  Spin and Parity  Decay Modes Gammas Properties:  Energy  Branching Ratio  Multipolarity  Mixing Ratio  Conversion Coefficients  Reduced transition probability Explicit information Derived information  Level Schemes  Gamma-Gamma coincidences ENSDF adopted datasets 2,376,466 Number of  -coincidences 204,017 Number of  ’s 140,102Number of levels 2,935Number of nuclei Contents

ENSDF - NuDat Alejandro Sonzogni ENSDF decay datasets  Q-value  Parent nucleus info  Proper Normalization Level Properties:  Energy  Half-life  Spin and Parity  Decay Modes Gammas Properties:  Energy  Branching Ratio  Multipolarity  Mixing Ratio  Conversion Coefficients B- Properties:  Average Energy  Intensity  Logft value  Uniqueness Alphas Properties:  Energy  Intensity  Hindrance Factor Explicit information  Decay Schemes  Auger, Conversion Electrons and X-ray energies and intensities.  Mean Energies  Detailed energy balance  alpha-gamma coincidences Derived information

ENSDF - NuDat Alejandro Sonzogni NuDat

ENSDF - NuDat Alejandro Sonzogni 26 Al  +/EC decay

ENSDF - NuDat Alejandro Sonzogni Search Capabilities   coincident   non-coincident Powerful tool to identify materials using Gamma rays coincidences

ENSDF - NuDat Alejandro Sonzogni Possible Homework  Identify nuclei with (possibly) incomplete decay scheme  Produce up to date ENSDF evaluations and translate to ENDF format  Check for missing radiation  Redefine nuclei list Before experiments  Evaluate new data  Produce new ENSDF file  Translate to ENDF format After experiments