Nuclear Structure and Decay Data in Europe
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1 Nuclear Structure and Decay Data in Europe Paraskevi (Vivian) Dimitriou Nuclear Data Section,, Vienna, Austria
2 Outline IAEA Nuclear Structure & Decay Data activities (CRPs, DDPs, Workshops, Dissemination/Databases) NSDD network: organization, coordination, funding European NSDD network - organization - stakeholders - actions
3 Nuclear Data Section Coordinated Research Projects International Networks Data development and dissemination Training Technical Meetings
4 Coordinated Research Activities CRP on Reference Database for Beta-Delayed Neutron Emission: decay data CRP on Nuclear Data for Charged-particle Monitor Reactions and Medical Isotope Production: decay data CRP on Testing and Improving the International Reactor Dosimetry and Fusion File (IRDFF) : decay data NEW: CRP on Photonuclear Data and Photon Strength Functions: E/M response, GDR, etc
5 CRP on beta-delayed neutron emission 2 nd RCM March 2015, Summary Report: INDC(NDS)-0683 Evaluation of Z=2-28 nuclei: T 1/2, P n completed and published (Birch, Singh et al, NDS 128 (2015) 131) Evaluation of Z=29-57: T 1/2, P n (and for selected Z>57) underway New theoretical T 1/2, P n values (Borzov, Marketin, Minato) Systematics T 1/2, P n Macroscopic database under construction (total DN yields, decay parameters, DN spectra) Piksaikin et al, INDC(NDS)-0690: High Resolution Measurements of Aggregate Delayed Neutron Spectra in Different Time Intervals from Thermal Neutron Induced Fission of 235 U
6 CRP on Nuclear Data for Charged-particle Monitor Reactions and Production of Medical Isotopes 2 nd RCM 8-12 Dec. 2014, Summary Report: INDC(NDS) Cu (done), 62 Zn (adopt ENSDF), 63 Zn (done) 67 Cu (new measurement completed; evaluation + X/Auger) 99m Mo/ 99m Tc (evaluation and X/Auger data), 111 In (evaluation done: remains X/Auger data) 52 Fe (done), 64 Cu (done), 66 Ga (new measurements and evaluation) 52 Mn, 52m Mn (new additions: evaluation) 72 As (adopt ENSDF), 73 Se (done), 76 Br (ongoing), 86 Y (NNDC-BNL measurement), 89 Zr (done), 94m Tc (done), 120 I (evaluation), 44 Ti (half-life: done) 230 U decay chain (to be completed; 210 Bi, 210 Po updated) 178 Ta (evaluation+ X/Auger) 103 Pd (evaluation done: remains X/Auger) New additions: 125 I, 131 Cs (evaluation + X/Auger)
7 Meetings in
8 Meetings in
9 Workshops Joint IAEA-ICTP Workshop on Nuclear Structure and Decay Data: Theory and Evaluation, Trieste, March 2014 Specialized Workshop for Nuclear Structure & Decay Data Evaluators, IAEA, April 2015 Joint IAEA-ICTP Workshop on Nuclear Structure and Decay Data: Theory and Evaluation, Trieste, 22 August 2 Sept. 2016
10 Dissemination General Purpose Libraries Special Purpose Libraries 22nd IBA Conference, Opatija, 2015
11 Dissemination
12 Nuclear Moments Database: wwww-nds.iaea.org/nuclearmoments Online access to printed compilations (Stone etc) Access to references (DOI, NSR links) Objective: keep the database up-to-date on a regular basis 10 Future improvements: search criteria, plotting capabilities
13 International Network of Nuclear Structure and Decay Data Evaluators (NSDD) International Network of Data Centres with the task of evaluating nuclear structure and decay properties of all nuclides with a given mass chain number A Mass chains evaluations: Isotopes with the same A produced through n->p are evaluated together to produce the Evaluated Nuclear Structure Data File (ENSDF) format The ENSDF database is hosted at available also at A-chain evaluations are published in Nuclear Data Sheets Unevaluated nuclear structure and decay data are compiled in the ENSDF format in the XUNDL database NDS IAEA coordinates the network P. Dimitriou, INDC, 3 June 2014
14 International Network of Nuclear Structure and Decay Data Evaluators (NSDD) 16 Data Centres % mass chains FTE Funding USA: 6 ~80% ~5.6 National (DoE) Europe: 3 ~6% ~0.9 India: 2 China: 2 61 mass chains ~2.2 None ~20% Japan: 1 Australia: 1 IAEA: 1 Coordination-Dissemination In 2015, 2 non-us DCs withdrew (France+Kuwait), 1 (Romania) joined
15 Other reasons for concern output of mass chains decreasing 10-year cycle not reached Retirement of experienced evaluators Loosing expertise in ENSDF evaluations International contribution in decline Problem 1: Lack of funding Problem 2: Attracting good evaluators
16 IAEA Financial Support : seed funds Mass chain evaluations: Sukhjeet Dhindsa (final: ) Khalifeh AbuSaleem (final: ) Lalkovski (ended) Erturk (ended) Timar (ended) Negret (ended) New codes: Sukhjeet Dhindsa (RadD/r0 tables) Michael Birch (JGAMUT) Horizontal compilation: Theo Mertzimekis (Nuclear Moments database)
17 Funding Opportunities in Europe I National: practically non-existent Non-national: competitive - EU through Horizon 2020: EURAMET-Energy, etc - EU through ENSAR2 - EU through EURATOM (?) IAEA CRPs / seed-funds (mass-chains): clearly not enough and can only happen once
18 Funding Opportunities in Europe II Different organization/prioritization is required for European NSDD: - Less emphasis on mass chains: focus on Horizontal Evaluations/Individual nuclides - Driven by relevance to Data Applications - Connect evaluation with proposed measurement -Collaborations/Joint proposals: integrate data evaluation in proposed work
19 Funding Opportunities in Europe III Engagement of Stakeholders: top-bottom and bottom-up approach - large- and small-scale European facilities: Examples: MSU in US is getting involved; RIKEN is getting involved - ENSAR2 - NuPECC - Other expert communities: nuclear astrophysics, medical physics
20 Actions - form collaborations/joint proposals with NSDD evaluation as integral part of the work - ENSAR2: contact Work-Package leaders - NuPECC: nuclear data in long-range plan; prepare document - US partnership: similar activities (workshops, documents etc) - Nuclear Astrophysics: contact their data experts - Revive and expand European NSDD consortium
21 IAEA contribution - coordination support - assistance in preparation of documents of support - organization of outreach workshops (ICTP) and advanced training workshops For example: attract broader european participation in upcoming ICTP Workshop
22 Joint ICTP-IAEA Workshop on Nuclear Structure and Decay Data 2 weeks, 22 August 2 September 2015, Trieste, Italy New model: Emphasis on experimental techniques, facilities and new data Invite lecturers from leading worldwide experimental facilities for lectures Hands-on courses: Evaluation of nuclides measured at the leading facilities Extensive demonstration/use of codes, editor Needs Advertising in major labs/facilities to get students/post-docs interested
23 Thank you
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