nndc-march11 · 2020. 9. 15. · nndc-march11.qxp Author: cindy Created Date: 2/22/2011 4:10:16 PM ...
NNDC Data Services
description
Transcript of NNDC Data Services
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Jag Tuli DDP08
Bucharest, Romania, May 08
NNDC Data ServicesJagdish K. TuliNational Nuclear Data Center
Brookhaven National LaboratoryUpton, NY 11973
NNDC Data ServicesNNDC Data Services
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Jag Tuli DDP08
Bucharest, Romania, May 08
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
Overview of US Nuclear Data Program’s nuclear structure and decay data activities
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Jag Tuli DDP08
Bucharest, Romania, May 08
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 Emerging Non-USContributors: Contributors:
BELGIUM ARGENTINACANADA AUSTRALIACHINA BRAZILFRANCE BULGARIAJAPAN INDIA KUWAITRUSSIA
The International Connection
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Jag Tuli DDP08
Bucharest, Romania, May 08
Structure Evaluation Responsibilities
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!
NUCLIDE EVALUATION RESPONSIBILITY(% of USDOE-Sponsored Effort)
ANL6%
BNL29%
LBNL32%
ORNL13%
Idaho8%
TUNL5%
McMaster7%
WORLDWIDE NUCLIDE RESPONSIBILITIES
US65%
Canada9%
International
26%
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Jag Tuli DDP08
Bucharest, Romania, May 08
US Network (~6 FTE)(US-DOE Office of Science funded)
USNDP Evaluators – Who Are We?
ANL
LBNL
McMASTER
BNL INEEL
ORNL
TUNL
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Jag Tuli DDP08
Bucharest, Romania, May 08
NNDC Web Portal
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Jag Tuli DDP08
Bucharest, Romania, May 08
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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Jag Tuli DDP08
Bucharest, Romania, May 08
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.
Our Major Products
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Jag Tuli DDP08
Bucharest, Romania, May 08
ENSDF
Atomic Masses (Audi, Wapstra)
Nuclear Science References (NSR)
ENSDF Database: Major Contributors and Derivatives
MIRD
Nuclear Wallet Cards
Table of Isotopes(1996-9)
Table of Radioactive
Isotopes (1986)
Nuclear Data
Sheets (Elsevier)
XUNDL Compilation
NuDat
Contributing Databases:
Derivative Databases:
Derivative Publications:(value added)
Table of Super -
deformed Bands
RADWARE Hi-J
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Jag Tuli DDP08
Bucharest, Romania, May 08
Decays-
++
-netc.
ENSDF Database StructureENSDF
A=1 A=294A
Abs RefZmin Zmax
Adopted(best values)
Q valuesLevels:(E, J, T1/2, , Q, config, excitn.)Gammas:(E, Br, Mult, )
Reactions(HI,xn)(p,p’ )(n, )
Coul. Exc.(,’)(d,p)etc.
Z
.... ….
.... ….
0 to ~6 datasets 0 to ~40 datasets1 dataset
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Jag Tuli DDP08
Bucharest, Romania, May 08
Segment of Index to ENSDF; choose A or nuclide of interest
Access to ENSDF data
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Jag Tuli DDP08
Bucharest, Romania, May 08
Choose Dataset(s), Output option
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Jag Tuli DDP08
Bucharest, Romania, May 08
HTML output for 184Bi “Adopted”
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Jag Tuli DDP08
Bucharest, Romania, May 08
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 papersCoordination: 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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Jag Tuli 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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Jag Tuli DDP08
Bucharest, Romania, May 08
NuDat Database
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Jag Tuli DDP08
Bucharest, Romania, May 08
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Jag Tuli DDP08
Bucharest, Romania, May 08
Choose: Hg
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Jag Tuli DDP08
Bucharest, Romania, May 08
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Jag Tuli DDP08
Bucharest, Romania, May 08
Nuclear Structure Data
• Bibliographic data
• Evaluated data
• Journal preparation
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Jag Tuli DDP08
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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Jag Tuli 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 two-folds with a new portal
• Migration + User Interface improvements produce results
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Jag Tuli DDP08
Bucharest, Romania, May 08
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
Overview of US Nuclear Data Program’s nuclear structure and decay data activities