at IN2P3 S David CNRSIN2P3 NuPECC IPHC Strasbourg March 14th 2014 1 Nuclear physics Nuclear data System studies Scenarios studies Neutronic simulations Experiment Society ID: 784639
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Physics of Nuclear Energy at IN2P3S. DavidCNRS/IN2P3NuPECCIPHC StrasbourgMarch 14th 2014
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Slide2Nuclear physicsNuclear dataSystem studies
Scenarios
studies
Neutronic
simulations
Experiment
Society
Interdisciplinarity
Physics
of
Nuclear
Energy
Targets
Experiment
Evaluation
Data
libraries
Radiochemistry
Nuclear
models
2
Slide3Main collaborations
European
programs
NUDAME
EUFRAT
EFNUDAT E
RINDA
NUDATRA
ANDES
CHANDA
Facilities
Neutron
beams
Charged
particles
Nuclear
reators
IN2P3 teams
Nuclear
data for
reactors
3
Slide41eV10 MeV1 GeVThermal reactorsFast neutron reactors
Accelerator-driven subcritical
reactors
N-TOF@CERN –
continuous
neutron source – time of flight
Licorne@IPNO
GSI
Electromagnetic
fission
Neutron
source
Indirect
methods
Differential
cross-sections (fission, capture, (
n,xn), (n,n’
)Branching ration (fission products, beta decays
, …)Integral measurements, Indirect
methods, nuclear parameters (
level density, …)
…
Nuclear data for reactors
GELINA (Geel)
continuous – time of flightNFS@Ganil
4
Slide5238U(n,n’) libraries238U(n,n‘) neutron inelastic
scatering
Governs
the
slowing
-down of the neutrons
at
high
energy
just after the fission
Responsible of the slowing
-down below the fission threshold of non-fissile nuclei
Impacts on delayed
neutrons, void coefficient, neutron balance for breeding
GRAPhEME@GELINA
A
strong
collaboration theory
/experiment is
needed to understand
the discrepancy between
measurement and
experiment and to improve neutron
libraries
Nuclear data for reactors
: focus on 238U(n,n’)
5
Slide6CACAO : provides radioactive targets and target characterizationFabrication : electroplatingR&D: ionic liquid for O-free target 252
Cf and 231Pa target
Characterization :
R&D:
C²ASCERA: multi-analysis chamber
coupling SEM and NRA analysis
Thin
backing
(750 nm Al):
235,238
U,
232Th target
spectrometry
Thickness, cartography, homogeneity
autoradiography
Atomic Force Microscopy
Surface state analysis
235, 238
U;
= 70 mmbacking: 20µm Al
chemical and
isotopical analysis
Inauguration: 2013, July 12th
Needs for radioactive targets
Needs for well characterized targets6
Slide7Experimental reactor physics7
VENUS
reator
(SCK Mol)
Fast
spectrum
,
Lead
, U
metal
enriched
30%~0 power reactor
Critical and subcritical mode
GENEPI-3C neutron source (IN2P3)
Develop an experimental
method for the on-line measurement
of the subcriticality level
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Slide8GENEPI-3C neutron source : multiple modes for
different
experimental
methods
Subcriticality
system : a new
way
to
make
experimental reactor physics
beam
Standard
method
used
for critical systems
Innovative method (IN2P3)
Time response to a pulsed neutron source
at different locations in the
coreExperimental
reactor physics
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Slide9Simulation, Systems and Scenarios Detailed neutronic simulationsInnovative
methodsScenario
studiesFissile inventoriesImpacts on fuel cycleWaste
production
System
studies
Fuel
evolution
Safety
parameters
Exploring mid / long
term innovative strategies
innovative cycles in « standard reactors
» (water, sodium) innovative systems
reactors+cycle : ADS, Molten Salt reactor9
Slide10Simulation Systems Scenarios From detailed neutronic simulation …. to macroscopic scenario studies
Sensitivity to nuclear
dataImpacts on fuel
evolution
,
safety
parameters
, …
Impacts of
breeding
and transmutation on
induced radiotoxicity
(waste and fuel)
Fast sodium reactor
/ Uranium cycletransmutation
waste
fuel10
Slide11Accelerator driven systemsDedicated to waste transmutationAccelerator R&D (see J.S. Bousson)
Proton
beam
Increasing
the power of transmuter
reducing
the
numer
of
reactors
dedicated to waste transmutation
Molten
Salt Reactor (MSFR)
Liquid fuel, fluoride, thorium cycleO
n-line reprocessingDesign studies, safety studies
Coupling neutronic / thermalhydraulic
Simulation
Systems
Scenarios 11
Slide12Nuclear PhysicsReactor
physics
Exp
. / Sim.
What
place for
nuclear
power in the future?
Collaboration
with
Techno-
economy
, climatologists, …
Opening toInterdisciplinarity
Opening toSociety
Proliferation problematics
Use the neutrinos to
measure
what
happens
in the
core from outside
Academix
teaching : nuclear energy
, reactor physics, nuclear
wasteExpertise for society : parlementary office, french
law on nuclear waste
, public debates, …
Collaborations
Other
CNRS instituts, NEEDS
CEA and French
n
uclear
industry
European
programs
International collaborations
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