Coordinated Research Project on Updating the photonuclear Data Library and generating a Reference Database for Photon Strength Functions Paraskevi (Vivian) Dimitriou Data Development Unit, Nuclear Data Section International Atomic Energy Agency, Vienna, Austria
Basic Sciences: experiment + theory JYFLTRAP Penning trap Applications: radiation shielding, medical dosimetry, reactor operation +safety, decommissioning, forensics, homeland security, cultural heritage, environmental monitoring
Basic Sciences: experiment + theory Nuclear Data Dissemination Evaluation Compilation JYFLTRAP Penning trap Data for applications: Complete Organised Traceable
Basic Sciences: experiment + theory Nuclear Data Dissemination Evaluation Compilation JYFLTRAP Penning trap Data for applications: Complete Organised Traceable
Radiation shielding Photonuclear Data (γ,abs), (γ,xn) Photon Strength Functions ( ) Dosimetry Reactor physics Non-proliferation Nuclear structure Nuclear astrophysics
Radiation shielding Photonuclear Data IAEA Nuclear Data Section: (γ,abs), (γ,xn) Dosimetry development and dissemination of nuclear Reactor physics data Photon Strength Coordinated Functions ( ) Research Projects Online databases Non-proliferation Nuclear structure Nuclear astrophysics
IAEA Photonuclear Data Library (1999)
IAEA Photonuclear Data Library (1999)
New Coordinated Research Project: 2016-2020 Update the Photonuclear Data Library Generate a Reference Database for Photon Strength Functions 14 participants from 12 countries + 3 advisors 3 Research Coordination Meetings 1 st Research RCM: 4-8 April 2016, IAEA, Vienna: scope of project, tasks assigned
Scope of the project Measurements Dissemination Updated Photonuclear Data Library Compilation Evaluation Database for Photon Strength Functions Assessment Theory
Photonuclear Data Library Measurements (γ,xn): PHEONIX COLLABORATION (Utsunomiya s talk) Japan team: 197Au, 181Ta, 139La ELI-NP team: 169Tm, 165Ho, 159Tb Moscow State Univ. team: 103Rh, 89Y, 59Co Assessment of (γ,xn) Recommendation of data Fi functions/corrections (Varlamov) Evaluation of (γ,xn)/ (γ,abs): cross-section data (200 MeV) CCONE (JAEA) (Iwamoto) GUNF (CNDC) (Xu, Wang) TALYS/EMPIRE (KAERI, ELI-NP) (Cho, Filipescu) Atlas of GDR parameters (Plujko) Dissemination (data library) (IAEA) New retrieval interface
Photoneutron cross sections: multiplicity puzzle 197 Au(,2n) 195 Au Saclay data (circles) Livermore (crosses) 1999 CRP new evaluation criteria by Varlamov: F 1, F 2, F 3 corrections for (γ,1n), (γ,2n), (γ,3n) Ultimately: new data from new multiplicity sorting technique (Utsunomiya)
Updated IAEA Photonuclear Data Library - Recommended evaluated photonuclear data for 164 + 37 new isotopes for incident photons (gamma rays) with energies up to 200 MeV Cho (KAERI)
Updated IAEA Photonuclear Data Library - PSF extracted from all EXFOR (γ,abs) cross sections -New ATLAS OF GDR PARAMETERS: SLO and MLO parameters (Plujko) Data for 18 new isotopes are included in the tables. Data are changed for 87 isotopes. 102 new values are added from 23 sources. 12 values were omitted.
Comparison data with calculations within SLO, MLO, TLO models SLO, MLO individual parameters SLO, MLO systematics TLO - Triple (triaxial) Lorentzian [Junghans, A. R., et al. Phys.Lett. B 670,3 (2008): 200.] TLO model with β and γ parameters for 124 Sn, 178 Hf, 181 Ta, 186 Os, 208 Pb, 138 Ba, are taken from Attachments to the Ref. Delaroche, J-P., et al. Physical Review C 81.1 (2010): 014303. CEA database, http://www-phynu.cea.fr/hfb-5dch-table. htm, and supplementary material at http://link.aps.org/ supplemental/10.1103/physrevc.81.014303 for tables of predicted properties of even-even nuclei and for color and black and white charts. http://www-phynu.cea.fr/science_en_ligne/carte_potentiels_microscopiques/tables/hfb-5dch-table- 2009eng.txt
Photon Strength Functions database New measurements Group Nuclides Technique S. Siem (Oslo) 111,112,113 Sn, 92 Mo (12/2016) 152,153 Sm (12/2018), 186 W (12/2017) 144,145,148,149,150,151 Nd (12/2017) 234 U, 240 Pu (12/2016) 203,205 Tl (12/2016); 192 Os (12/2017), 185 Re (12/2017); 182,183,184 W (12/2018); 89 Y (12/2016); 64 Zn (2019), 66,68 Zn (12/2018) M. Wiedeking (ithemba) R. Schwengner (HZDR) 74 Ge (12/2017), 180,181,182 Ta (12/2016) 154,155 Sm (05/2018) 80 Se (12/2016); 54 Fe (12/2017); A~60 ( 62 Ni, 64 Zn tbc) (03/2019) Oslo chargedparticles (γ,n) Ge (ratio method) ; Ta (Oslo method) At Elbe and/or Higs ( 54 Fe) T. Belgya (HAS) 233 Th, 239 U (12/2017) thermal n-capture H.Utsunomiya (Konan) 156,157,158,160 Gd (2019) 58,60,64 Ni (12/2017) (γ,n)
Photon Strength Functions database Compilation of f(l) data (coordinator: Wiedeking) (γ,abs)/(γ,xn) cross sections : 214 data files Oslo Method, ratio Method, NRF ~ 114 data files (+NLD data files) Average Resonance Capture data: over 30 data files More to come: new data, thermal and resonance neutron capture, β-oslo, (p,p ) Goal: completeness of database
PSF database - Each data set entry contains 2 files: 1. Readme file: how PSF is extracted from raw data -references 2. PSF file: X Y dy 3. Oslo method: NLD data files provided
f1 (MeV-3) f1 (MeV-3) 1.00E-05 181 Ta 1.00E-06 1.00E-07 1.00E-08 1963Br1 1968Be5 1981Gur 2012Var Schwengner Malatji Brits 1.00E-06 1.00E-09 0 5 10 15 20 25 139 La E γ 1.00E-07 1.00E-08 1971Be4 Kheswa Schwengner 1.00E-09 E γ 0 5 10 15 20 25 30
f1 (MeV-3) f1 (MeV-3) 1.00E-05 89 Y 1.00E-06 1.00E-07 1.00E-08 1.00E-09 0 5 10 15 20 25 30 1967Be2 1971Le1 1972Yo 2003Var Schwengner Larsen (high) Larsen (low) Larsen (rec) E γ 1.00E-06 92 Mo 1.00E-07 1.00E-08 1.00E-09 1967Be2 Schwengner Tveten (high) Tveten (low) Tveten (rec) 0 5 10 15 20 25 30 E γ
After compilation/collection of all available PSF data: Assessment of data/techniques considering all uncertainties (model dependent) (Siem, Wiedeking, Schwengner, Krticka, Belgya, Firestone) Global models (QRPA, EGLO, TSE) +TLO (Goriely, Plujko, Schwengner) Global empirical formula for enhanced M1 mode (Kawano) Validation of PSF (exp. and theo) (Krticka, Belgya) Recommendation of best PSF
New PSF database (in preparation) By clicking on a nuclide produce plots on-the-fly with all available data and models in the database: Download all data Upload and plot User data 92Mo 94Mo 95Mo 96Mo 97Mo 98Mo
New PSF database (in preparation) By clicking on a nuclide produce plots on-the-fly with all available data and models in the database: Download all data Upload and plot User data 92Mo 94Mo 95Mo 96Mo 97Mo 98Mo Feed into RIPL
Work in progress 2 nd RCM 16-20 Oct. 2017: PSF Assessment of techniques for 96,98Mo - Recommendation of PSF data Comparison of exp. PSF with global models Validation of recommended PSFs Dissemination of DICEBOX package Finalize PSF database interface and plotting tools
Work in progress 2 nd RCM 16-20 Oct. 2017: Photonuclear Compare new Multiplicity sorting data vs Fi correction method New evaluations of 164+37 nuclides Atlas of GDR parameters
http://www-nds.iaea.org/crp-photonuclear
Thank you!