1 / 11

Nuclear physics in CEA DAM DIF in numbers

Nuclear physics studies in CEA DAM DIF (Formerly known as CEA Bruyères-le-châtel) E. Bauge CEA DAM DIF. Nuclear physics in CEA DAM DIF in numbers. Theoretical and experimental expertise interacting in one place. Two missions :

logan-chandler
Download Presentation

Nuclear physics in CEA DAM DIF in numbers

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Nuclear physics studies in CEA DAM DIF(Formerly known as CEA Bruyères-le-châtel)E. BaugeCEA DAM DIF

  2. Nuclear physics in CEA DAM DIF in numbers Theoretical and experimental expertise interacting in one place • 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) • Five broad interacting research themes being developed: • Fission • Nuclear many-body theory • Nuclear isomers and nuclear physics with lasers & plasmas • Nuclear data • Experimental installations 44 physicists & technicians (+ graduate students, post-docs, visitors, …) 40 publications in peer-reviewed journals in 2010 Formal collaborationagreements with: CEA-DSM, CEA-DEN, NNSA, IRMM Geel. Active participation in several FP 5, 6, 7 EU programs (ANDES, ERINDA FP7) Web site: http://www-phynu.cea.fr

  3. Interacting reseach programs at CEA DAM DIF Many- body Theory Isomers Plasmas Nuclear Data Fission Exp. Installations Experiment

  4. Theoretical Nuclear Structure 226Th scission configuration Ab initio calculations based on the highly successful Gognyeffective 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 QRPA 238U 3- Fields of Application: Nuclear structure properties: - spectroscopy of exotic nuclei - systematic calculations Microscopic fission studies Structure ingredients for reaction models Calculated ground state deformations

  5. 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 Fields of application: Evaluated nuclear data for the DAM Simulation Program Evaluated nuclear data for the European JEFF file Theoretical support for experimentalists (surrogate methods,…) 89Y(n,2n) covariance matrix

  6. Experimental nuclear data Detectors: Very high efficiency CARMEN neutron counter Multi-layers fission chambers 3He neutron counter Lead Slowing Down Spectrometer (in LANL) SOFIA (2012)-> FELISE (2017+) (GSI Darmstadt) n(238U,f)n CARMEN neutron counter Prompt fission neutron mean energy as a function of incident neutron energy measured at LANSCE. Fields of application: Fission measurements (cross sections, a ratio, neutron spectra, fragment yields) (n,xn) & pre-equilibrium experimental studies Experimental support for the DAM simulation program

  7. Nuclear isomers andNuclear physics with lasers & plasmas Predicted lifetime of 201Hgm as a function of T g- factor measurement of 61Fem Fields of application : Experimental spectroscopy of excited states in exotic nuclei & fission fragments Mechanisms for populating/depopulating isomers Atomic/nuclear physics coupling in plasmas Nuclear physics with lasers

  8. On-site facility : 4 MV Van de Graaff accelerator 1H, 2H,3He, 4He & heavy ions beams Continuous intensity ~ 300 mA Pulsed 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 Fields of application : Cross sections measurements (n,p,d,t,3He,a,…) Detector development and testing before deployment in off-site facilities Characterization of thin deposits with microprobe

  9. Off site installations LANSCE WNR SPIRAL2, Phase 1 : NFS (2012) Laser Mega Joule (2014) SOFIA Exp. at GSI SuperFRS (2012) then FELISE (2017+) GANIL, SPIRAL2 (2014) with CHYMENE + CERN +RIKEN +Orsay Tandem +CACAO,…

  10. QRPA 238U 3- 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

  11. Questions ? Many- body Theory Isomers Plasmas Nuclear Data Fission Exp. Installations Experiment

More Related