Nuclear Data for Basic Sciences and Applications

Paraskevi (Vivian) Dimitriou Nuclear Data Section, International Atomic Energy Agency, Vienna, Austria

Division of Physical and Chemical Sciences: Nuclear Data Section

Nuclear Data development

and dissemination

Coordinated Research Projects

Training

Technical Meetings

International Networks

Basic Sciences: experiment + theory

JYFLTRAP Penning trap

Applications: Dosimetry, radiation protection, reactor operation+ safety, forensics, Homeland security, Cultural heritage, environmental Control

Basic Sciences: experiment + theory

JYFLTRAP Penning trap

Nuclear Data

Applications: Dosimetry, radiation protection, reactor operation and safety, forensics, homeland security, Cultural heritage, environmental Control

Compilation

Evaluation Dissemination

Databases: Compiled data

Evaluated Nuclear Data File (ENDF)

Evaluated Nuclear Data File (ENDF)

Evaluated Nuclear Data File (ENDF)

Evaluated Nuclear Data File (ENDF)

Ø Major evaluated data library for energy and non-energy applications involving particle transport Ø There is no single ENDF file, but several national and international efforts: ENDF/B, JEFF, JENDL, CENDL, ROSFONDF/BROND Ø  IAEA projects, CIELO

Evaluated Nuclear Structure Data File (ENSDF)

ENSDF Evaluation

•  Levels, spins, parities •  Multipolarities, mxing

ratios, conversion coefficients

•  Half-lives, transitions strengths, emission probabilities…

•  Continuously updated •  Complete

ENSDF: Major Data Sources and Derivatives

ENSDF

MIRD Derivative Databases:

Derivative Publications:

RADWARE

MC Codes q  MCNPX q  GEANT

NUBASE RIPL

NuDat IE

JANIS … DDEP

Live Chart

Widely used ENSDF retrieval systems

Widely used ENSDF retrieval systems

•  Nuclides Chart with filter

•  ENSDF + other NS properties

•  Data tables with evaluators’ comments

•  Level and decay schemas, decay radiation, β and bremsstrahlung spectra

•  CSV download

www-nds.iaea.org/livechart

Build your query on ENSDF

•  Custom plotting •  Data tables, level and decay schemes •  CSV data downloading

www-nds.iaea.org/queryensdf

IAEA Isotope Browser – for mobile devices

•  ENSDF + other NS data •  Query tool •  Chart with decay path

International Network of Nuclear Structure and Decay Data Evaluators

McMaster University Petersburgh Nuclear

Physics Institute

ITT Roorkee

International Network of Nuclear Structure and Decay Data Evaluators

McMaster University Petersburgh Nuclear

Physics Institute

ITT Roorkee

Since 1974 under auspices of Nuclear Data Section

International Atomic Energy Agency

NSDD evaluation vs Usage USA Europe IND RUS PRC JAP AUS

USA Europe India Russia PR China Japan Australia Saudi Arabia S. Korea

FTE contribution to

ENSDF

Downloads (%) from Nuclear Data Sheets

A bit of history

c/o: A. Negret

Perspectives

15 NSDD centres

74% 26%

Present and Future

NSDD centres

74% 26% Ø Require 12 full-time evaluators to keep ENSDF

updated every 10 years – have only 9 Ø Limited funding Ø Retirement of experienced evaluators Ø Rapid growth in new data Ø Increasing demands for reliable up-to-date nuclear

data

c/o: H. Sakurai, ICTP Workshop on NSDD, 22 Aug.-2 Sept. 2016, Trieste

c/o: H. Sakurai, ICTP Workshop on NSDD, 22 Aug.-2 Sept. 2016, Trieste

Contribution from the major facilities all around the world is CRUCIAL !

Ø  Maintain expertise in nuclear data

Ø  Keep ENSDF current Ø  Provide top quality data for

applications and basic research

Web site: http://www-nds.iaea.org/

Thank you!