coordinated research project on updating the photonuclear data...
TRANSCRIPT
![Page 1: Coordinated Research Project on Updating the photonuclear Data …tid.uio.no/workshop2017/talks/OsloWS17_Dimitriou.pdf · 2017. 5. 20. · Paraskevi (Vivian) Dimitriou Data Development](https://reader035.vdocument.in/reader035/viewer/2022071510/612e24511ecc51586942a042/html5/thumbnails/1.jpg)
Paraskevi (Vivian) Dimitriou
Data Development Unit, Nuclear Data Section
International Atomic Energy Agency, Vienna, Austria
Coordinated Research Project on Updating the photonuclear Data Library and generating a Reference Database for Photon Strength Functions
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Basic Sciences: experiment + theory
JYFLTRAP Penning trap
Applications: radiation shielding, medical dosimetry, reactor operation +safety, decommissioning, forensics, homeland security, cultural heritage, environmental monitoring
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Data for applications:
• Complete • Organised • Traceable
Basic Sciences: experiment + theory
JYFLTRAP Penning trap
Nuclear Data
Compilation
Evaluation
Dissemination
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Data for applications:
• Complete • Organised • Traceable
Basic Sciences: experiment + theory
JYFLTRAP Penning trap
Nuclear Data
Compilation
Evaluation
Dissemination
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Photonuclear Data
(γ,abs), (γ,xn)
Photon Strength Functions (↑↓)
Radiation shielding
Dosimetry
Reactor physics
Non-proliferation
Nuclear structure
Nuclear astrophysics
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Photonuclear Data
(γ,abs), (γ,xn)
Photon Strength Functions (↑↓)
Radiation shielding
Dosimetry
Reactor physics
Non-proliferation
Nuclear structure
Nuclear astrophysics
IAEA Nuclear Data Section:
development and dissemination of nuclear data –
Coordinated Research Projects
Online databases
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IAEA Photonuclear Data Library (1999)
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IAEA Photonuclear Data Library (1999)
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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
• 1st Research RCM: 4-8 April 2016, IAEA, Vienna: scope of project, tasks assigned
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Scope of the project
Updated Photonuclear Data Library
Database for
Photon Strength Functions
Measurements
Compilation
Assessment
Theory
Evaluation
Dissemination
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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
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Photoneutron cross sections: multiplicity puzzle
197Au(,2n)195Au
Saclay data (circles)
Livermore (crosses)
1999 CRP
new evaluation criteria by Varlamov:
F1, F2, F3 corrections for (γ,1n), (γ,2n),
(γ,3n)
Ultimately: new data from new multiplicity sorting technique (Utsunomiya)
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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)
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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.
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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 124Sn, 178Hf, 181Ta,186Os, 208Pb, 138Ba, 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
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Photon Strength Functions database
Group Nuclides Technique
S. Siem (Oslo) 111,112,113Sn, 92Mo (12/2016) 152,153Sm (12/2018), 186W (12/2017) 144,145,148,149,150,151Nd (12/2017) 234U, 240Pu (12/2016) 203,205Tl (12/2016); 192Os (12/2017), 185Re (12/2017); 182,183,184W (12/2018); 89Y (12/2016); 64Zn (2019), 66,68Zn (12/2018)
Oslo charged-
particles
(γ,n)
M. Wiedeking
(iThemba)
74Ge (12/2017), 180,181,182Ta (12/2016) 154,155Sm (05/2018)
Ge (ratio method) ;
Ta (Oslo method)
R. Schwengner
(HZDR)
80Se (12/2016); 54Fe (12/2017);
A~60 (62Ni, 64Zn tbc) (03/2019)
At Elbe and/or Higs
(54Fe)
T. Belgya (HAS) 233Th, 239U (12/2017) thermal n-capture
H.Utsunomiya
(Konan)
156,157,158,160Gd (2019) 58,60,64Ni (12/2017)
(γ,n)
• New measurements
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Photon Strength Functions database
• Compilation of f(L) data (coordinator: Wiedeking)
Oslo Method, ratio Method, NRF ~ 114 data files (+NLD data files)
More to come: new data, thermal and resonance neutron capture, β-Oslo, (p,p’)
Goal: completeness of database
(γ,abs)/(γ,xn) cross sections : 214 data files
Average Resonance Capture data: over 30 data files
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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
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1.00E-09
1.00E-08
1.00E-07
1.00E-06
1.00E-05
0 5 10 15 20 25
f1 (
MeV
-3)
Eγ
181Ta
1963Br1
1968Be5
1981Gur
2012Var
Schwengner
Malatji
Brits
1.00E-09
1.00E-08
1.00E-07
1.00E-06
0 5 10 15 20 25 30
f1 (
Me
V-3
)
Eγ
139La
1971Be4
Kheswa
Schwengner
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1.00E-09
1.00E-08
1.00E-07
1.00E-06
1.00E-05
0 5 10 15 20 25 30
f1 (
MeV
-3)
Eγ
89Y
1967Be2
1971Le1
1972Yo
2003Var
Schwengner
Larsen (high)
Larsen (low)
Larsen (rec)
1.00E-09
1.00E-08
1.00E-07
1.00E-06
0 5 10 15 20 25 30
f1 (
MeV
-3)
Eγ
92Mo
1967Be2
Schwengner
Tveten (high)
Tveten (low)
Tveten (rec)
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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
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New PSF database (in preparation) By clicking on a nuclide produce plots on-the-fly with all available data and models in the database:
92Mo
94Mo
95Mo
96Mo
97Mo
98Mo
Upload and plot User data
Download all data
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New PSF database (in preparation) By clicking on a nuclide produce plots on-the-fly with all available data and models in the database:
92Mo
94Mo
95Mo
96Mo
97Mo
98Mo
Upload and plot User data
Download all data
Feed into RIPL
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Work in progress
• 2nd 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
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Work in progress
• 2nd 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
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http://www-nds.iaea.org/CRP-photonuclear
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Thank you!