nndc data services

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

Jag Tuli DDP08


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

Jag Tuli DDP08


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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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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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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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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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

http://www.nndc.bnl.gov/

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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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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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Segment of Index to ENSDF; choose A or nuclide of interest

Access to ENSDF data

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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 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.

Jag Tuli DDP08


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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NuDat Database

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Choose: Hg

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Nuclear Structure Data

• Bibliographic data

• Evaluated data

• Journal preparation

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Electronic Access to Nuclear Data

• Electronic access to nuclear physics data bases, computer codes and documents available since 1986.

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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

Jag Tuli DDP08


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

nndc data services

Documents