NNDC Data Services
NNDC Data Services
Tuli
NNDCJagdish
DataK.Services
National Nuclear Data Center
Brookhaven National Laboratory
Upton, NY 11973
Jag Tuli
DDP08
Bucharest, Romania, May 08
Overview of US Nuclear Data Program’s
nuclear structure and decay data activities
Content:
• How do our evaluation and dissemination
activities fit into the global picture?
• Who is involved?
• What are the major products?
• How can our products be accessed?
• Other activities
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DDP08
Bucharest, Romania, May 08
The International Connection
The US structure and decay data evaluation effort is
part of an international effort coordinated by the IAEA
via two-yearly Advisory Group meetings
Long-Term Non-US
Contributors:
Emerging Non-US
Contributors:
BELGIUM
CANADA
CHINA
FRANCE
JAPAN
KUWAIT
RUSSIA
ARGENTINA
AUSTRALIA
BRAZIL
BULGARIA
INDIA
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DDP08
Bucharest, Romania, May 08
Structure Evaluation Responsibilities
NUCLIDE EVALUATION RESPONSIBILITY
(% of USDOE-Sponsored Effort)
WORLDWIDE NUCLIDE RESPONSIBILITIES
Canada
9%
Idaho
8%
Internatio
nal
26%
TUNL
5%
McMaster ANL
7%
6%
ORNL
13%
BNL
29%
US
65%
LBNL
32%
The US contribution is a very significant one
Responsible for two thirds of the known ~2900 nuclides.
However, there is an extremely important international component to
the overall structure evaluation effort!
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USNDP Evaluators – Who Are We?
US Network (~6 FTE)
(US-DOE Office of Science funded)
ANL
LBNL
McMASTER
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BNL
INEEL
ORNL
TUNL
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NNDC Web Portal
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Geographical Distribution of NNDC Users in 2004
• USA - 41.87%
• EU - 25.72%
• Japan - 6.06%
• China - 3.75%
• Former USSR - 3.28%
• India - 3.13%
• Canada - 2.47%
• Korea - 1.09%
• Australia - 0.78%
• Brazil - 0.77%
• The rest- 4.14%
• Unresolved - 6.94%
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Bucharest, Romania, May 08
Our Major Products
Evaluated (or compiled) structure & decay data, A=1-294,
and the means to access them
PRINCIPAL DATABASES ….
Web accessible from NNDC or mirror sites;
http://www.nndc.bnl.gov.
•NSR - Nuclear Science References (bibliographic).
•ENSDF - Evaluated Nuclear Structure Data File;
comprehensive, peer reviewed, publicly available; the
primary data source for other special purpose databases
and the starting point for several major publications.
•XUNDL – Experimental Unevaluated Data List compiled
from recently published literature; primarily high-J papers.
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DDP08
Bucharest, Romania, May 08
ENSDF Database: Major Contributors and
Derivatives
Contributing
Databases:
Atomic Masses
(Audi, Wapstra)
Nuclear Science
References (NSR)
XUNDL
Compilation
ENSDF
Derivative
Databases:
Derivative
Publications:
(value added)
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NuDat
MIRD
Nuclear
Data
Sheets
(Elsevier)
Table of
Isotopes
(1996-9)
Nuclear
Wallet
Cards
RADWARE Hi-J
Table of
Super deformed
Bands
DDP08
Bucharest, Romania, May 08
Table of
Radioactive
Isotopes
(1986)
ENSDF Database Structure
ENSDF
....
A=1
Abs
Zmin
Adopted
(best values)
Q values
Levels:
(E, J, T1/2, , Q,
config, excitn.)
Gammas:
(E, Br, Mult, )
1 dataset
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….
A
....
Z
….
Decays
A=294
Zmax
Reactions
(HI,xn)
(p,p’ )
(n, )
Coul. Exc.
(,’)
(d,p)
etc.
-
++

-n
etc.
0 to ~6
datasets
Ref
0 to ~40 datasets
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Bucharest, Romania, May 08
Access to ENSDF data
Segment of Index to
ENSDF; choose A or
nuclide of interest
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Choose Dataset(s), Output option
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HTML output for 184Bi “Adopted”
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XUNDL Database
Purpose: To provide rapid access to formatted (manipulable) data
from the latest papers - in response to request from high-spin
physics researchers.
Contents: Compiled (unevaluated) data from recent publications,
primarily in high-spin physics. Currently contains material for:
• 916 nuclides (A=13-288; N - element 115)
• 1326 papers
Coordination: B. Singh (McMaster).
Updates: as datasets arrive at NNDC (D. Winchell - BNL)
Manpower: primarily, carefully trained and closely supervised
undergraduate students.
Data Input: often, data input can be done directly from publication
using FINEREADER commercial software.
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DDP08
Bucharest, Romania, May 08
Major products for which ENSDF is
primary source
NuDat: recommended level and gamma properties (ENSDF
Adopted Levels, Gammas)
WWW Table of Nuclear Structure: website providing
alternative interface to ENSDF Adopted Levels, Gammas
MIRD: Medical internal radiation dose from radionuclides
Wallet Cards: ground and isomeric state properties
RADWARE Hi-Spin Database: database providing ENSDF and
XUNDL datasets for in-beam gamma-ray studies in RADWARE
file format
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DDP08
Bucharest, Romania, May 08
NuDat Database
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Bucharest, Romania, May 08
Choose: Hg
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Nuclear Structure Data
• Bibliographic
data
• Evaluated data
• Journal
preparation
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Bucharest, Romania, May 08
Electronic Access to Nuclear
Data
• Electronic
access to
nuclear physics
data bases,
computer codes
and documents
available since
1986.
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DDP08
Bucharest, Romania, May 08
2004 Web Statistics
Portal was launched on April
19, 2004
• Number of retrievals went
from 338K in 2003 to 560K in
2004, 66% calendar year
increase
• Number of database
retrievals increased twofolds with a new portal
• Migration + User Interface
improvements produce
results
Jag Tuli
DDP08
Bucharest, Romania, May 08
Overview of US Nuclear Data Program’s
nuclear structure and decay data activities
Summary:
• How do our evaluation and dissemination
activities fit into the global picture?
• Who is involved?
• What are the major products?
• How can our products be accessed?
• Other activities
Jag Tuli
DDP08
Bucharest, Romania, May 08