Download - Nuclear physics in CEA DAM DIF in numbers
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Nuclear physics studies in CEA DAM DIF
(Formerly known as CEA Bruyères-le-châtel)
E. BaugeCEA DAM DIF
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Nuclear physics in CEA DAM DIF in numbers
Web site: http://www-phynu.cea.fr
Formal collaboration agreements with: CEA-DSM, CEA-DEN, NNSA, IRMM Geel. Active participation in several FP 5, 6, 7 EU programs (ANDES, ERINDA FP7)
Two missions :- Support the DAM Simulation program for all nuclear physics problems.- Be at the forefront of low energy nuclear physics.
Four big exp. projects: SPIRAL-2 radioactive beam facility in GANIL (2015) NFS neutron source at SPIRAL-2 (2012) SOFIA at GSI (2012), FELISe at FAIR (2017+) Laser Mega Joule (2014)
44 physicists & technicians (+ graduate students, post-docs, visitors, …)40 publications in peer-reviewed journals in 2010
Theoretical and experimental expertise interacting in one place
Five broad interacting research themes being developed:-Fission-Nuclear many-body theory-Nuclear isomers and nuclear physics with lasers & plasmas-Nuclear data -Experimental installations
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Interacting reseach programs at CEA DAM DIF
Exp.Installations
IsomersPlasmas
Fission
NuclearData
Theory
Experiment
Many- body
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Theoretical Nuclear Structure
Ab initio calculations based on the highly successful Gogny effective interactions, coupled with mean-field and beyond the mean-field treatment of the many body problem Methods: Hartree-Fock-Bogoliubov (Quasi-particle) Random Phase Approximation Multi-particle multi-hole configuration mixing Generator Coordinate Method Time-dependent dynamical approaches
Fields of Application:
Nuclear structure properties:
- spectroscopy of exotic nuclei
- systematic calculations
Microscopic fission studies
Structure ingredients for reaction models
Calculated ground state deformations
226Th scission configuration
QRPA 238U 3-
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Nuclear reaction theory & evaluation
Vast array of nuclear reaction models for: - direct-interaction (optical models, CDCC ) - pre-equilibrium, - compound nucleus decay, - fission & prompt neutron spectra, - high energy intra-nuclear cascade, - covariances,used to integrate theoretical and experimental knowledge into validated evaluated nuclear data.
Increasing role of microscopic models (previous slide)
One code platform : TALYS (http://www.talys.eu) in collaboration with NRG Petten
Evaluated 232Th(n,f) cross sections
89Y(n,2n) covariance matrix
Fields of application:Evaluated nuclear data for the DAM Simulation ProgramEvaluated nuclear data for the European JEFF fileTheoretical support for experimentalists (surrogate methods,…)
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Experimental nuclear data
CARMEN neutron counter
Detectors:Very high efficiency CARMEN neutron counterMulti-layers fission chambers3He neutron counterLead Slowing Down Spectrometer (in LANL)SOFIA (2012)-> FELISE (2017+) (GSI Darmstadt)
Fields of application:Fission measurements (cross sections, ratio, neutron spectra, fragment yields)(n,xn) & pre-equilibrium experimental studies Experimental support for the DAM simulation program
Prompt fission neutron mean energy as a function of incident neutron energy measured at LANSCE.
n(238U,f)n
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Nuclear isomers andNuclear physics with lasers & plasmas
Fields of application :Experimental spectroscopy of excited states in exotic nuclei & fission fragmentsMechanisms for populating/depopulating isomersAtomic/nuclear physics coupling in plasmasNuclear physics with lasers
Predicted lifetime of 201Hgm as a function of Tg- factor measurement of 61Fem
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On-site facility : 4 MV Van de Graaff accelerator
Fields of application :Cross sections measurements (n,p,d,t,3He,,…)Detector development and testing before deployment in off-site facilitiesCharacterization of thin deposits with microprobe
1H, 2H,3He, 4He & heavy ions beams Continuous intensity ~ 300 APulsed operation for TOF measurements 10 ns resolution (1ns with compression)Neutron production targets (D, T, 7Li)
+ELSA electron Linac (photofission)+ Project of revival of the old 7 MeV TANDEM in CEA DIF
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Off site installations
SPIRAL2, Phase 1 : NFS (2012)
LANSCE WNR
Laser Mega Joule (2014) SOFIA Exp. at GSI SuperFRS(2012) then FELISE (2017+) GANIL, SPIRAL2 (2014) with CHYMENE
+ CERN +RIKEN +Orsay Tandem +CACAO,…
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On site facilities:TERA-100, GENCI and PRACE Supercomputers
•TERA-100 : N6 in Nov 2010 TOP 500 HPC list– 130000 cores, 1.05 Peta flops– Reserved for DAM
•GENCI/CCRT :– To be upgraded to TERA-100 level– Open for proposals from the French community
•PRACE/Curie (European) : – To be 1.5 x TERA-100– Open for proposals (first call 01/2011)– Ready before end of 2011
Make very ambitious theoretical calculations possible
QRPA 238U 3-
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Questions ?
Exp.Installations
IsomersPlasmas
Fission
NuclearData
Theory
Experiment
Many- body