Transcript Needs and Links to ENSDF/NuDat Alejandro Sonzogni National Nuclear Data Center Brookhaven National Laboratory Upton, NY 11973-5000 ENSDF - NuDat Alejandro Sonzogni.

Needs and Links to
ENSDF/NuDat
Alejandro Sonzogni
National Nuclear Data Center
Brookhaven National Laboratory
Upton, NY 11973-5000
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
Results published in Nuclear
Data Sheets
http://www.nndc.bnl.gov/nds
Web: http://www.nndc.bnl.gov/ensdf
NSDD: http://www-nds.iaea.org/nsdd.html
ENSDF - NuDat
Alejandro Sonzogni
ENSDF adopted datasets
Explicit information
Level Properties:
 Energy
 Half-life
 Spin and Parity
 Decay Modes
Gammas Properties:
 Energy
 Branching Ratio
 Multipolarity
 Mixing Ratio
 Conversion Coefficients
 Reduced transition probability
Derived information
Level Schemes
 Gamma-Gamma coincidences

Contents
Number of nuclei
2,935
Number of levels
140,102
Number of g’s
204,017
Number of gg-coincidences
ENSDF - NuDat
Alejandro Sonzogni
2,376,466
ENSDF decay datasets
Explicit information
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
Derived information
Decay Schemes
 Auger, Conversion
Electrons and X-ray energies
and intensities.
 Mean Energies
 Detailed energy balance
 alpha-gamma coincidences

ENSDF - NuDat
Alejandro Sonzogni
NuDat
http:www.nndc.bnl.gov/nudat2
ENSDF - NuDat
Alejandro Sonzogni
26Al
b+/EC decay
ENSDF - NuDat
Alejandro Sonzogni
Search Capabilities
Powerful tool to identify
materials using Gamma rays
coincidences
coincident non-coincident
g1
g2
ENSDF - NuDat
Alejandro Sonzogni
g2
g1
Possible Homework
Before experiments
Identify nuclei with
(possibly) incomplete decay
scheme

Produce up to date ENSDF
evaluations and translate to
ENDF format
After experiments


Check for missing radiation

Redefine nuclei list

Evaluate new data

Produce new ENSDF file

Translate to ENDF format
ENSDF - NuDat
Alejandro Sonzogni