Mme
Amélie Rouchon
(Cea Saclay)
09/05/2016 15:30
Nuclear Physics
Poster
Traditional neutron noise analysis addresses the description of small time-dependent flux fluctuations induced by small global or local periodic perturbations of the macroscopic cross sections, which may occur in nuclear reactors due to stochastic density fluctuations of the coolant, to vibrations of fuel elements, control rods, or any other structures in the core. Neutron noise techniques are...
M.
Walter PESSOA
(LETI CEA-Grenoble)
09/05/2016 15:30
Accelerator Physics
Poster
Chalcogenide materials (based in S, Se and Te) have unique electrical and optical properties; they have the ability to change from amorphous to crystalline phase when an electric current is applied. This phenomenon makes them a reference in new applications such as electronic memories (Phase Change RAM and Conductive Bridge RAM) and in optronics (Photonics and photovoltaics applications). In...
M.
Nabil Chouika
(Irfu/SPhN - CEA Saclay)
09/05/2016 15:30
Particle Physics
Poster
The extraction of GPDs (Generalized Parton Distributions, that encode information about the correlation between longitudinal momentum and transverse position of the quarks and gluons inside the hadron) is one of the main challenges of Hadronic Physics nowadays. In parallel, the need to produce accurate models in the valence region (relevant for JLab kinematics for example) is important. The...
M.
Cheikh Fall Ndiaye
(LAL)
09/05/2016 15:30
Accelerator Physics
In the context of the R&D program of the EuroGammaS consortium, a collaboration between different academic and industry partners for the Nuclear Physics pillar of the European project Extreme Light Infrastructure (ELI-NP), two multipass $\gamma$-ray Compton machines are to be built in Măgurele, Romania with photons of tunable energy between $0.2~\mathrm{MeV}$ and up to $20~\mathrm{MeV}$. These...
M.
Jonathan Riffaud
(CEA/DRT/LIST/DM2I/LNHB)
09/05/2016 15:30
Nuclear Physics
Poster
Dosimetry in reactor aims to determine the neutron fluence received during an irradiation and to characterize the spectrum (energy distribution of neutrons). This technique is based on the analysis of the activity of irradiated dosimeters, such as Nb-93(n,)Nb-93m and Rh-103(n,)Rh-103m with energies emissions between 16 and 22 keV. The activity measurement of these dosimeters is...
M.
Florian BRULFERT
(IPN)
09/05/2016 15:30
Nuclear Physics
Poster
Considering the environmental impact of the Fukushima nuclear accident, it is fundamental to study the mechanisms governing the effects of the released radionuclides on the biosphere and thus identify the molecular processes generating the transport and deposition of actinides, such as neptunium and uranium. However, the information about the microscopic aspect of the interaction between...
M.
Xing LIU
(LAL)
09/05/2016 15:30
Accelerator Physics
Poster
A new method of laser frequency stabilization using polarization property of an optical cavity is proposed. In a standard Fabry–Perot cavity, the coating layers thickness of cavity mirrors is calculated to obtain the same phase shift for s- and p wave but a slight detuning from the nominal thickness can produce s- and p wave phase detuning. As a result, each wave accumulates a different...
Mlle
Delphine Boursette
(LAL)
09/05/2016 15:30
Particle Physics
Poster
The SoLid experiment is searching for sterile neutrinos from a nuclear research reactor. It looks
for inverse beta decays (a positron and a neutron in delayed coincidence) with a very segmented
detector made of thousands of scintillating cubes. SoLid has a very innovative hybrid technology
with 2 different scintillators. The cubes are made of Polyvynil-Toluene (PVT) to detect the...
M.
Xavier Nuel Gavaldà
(Synchtron SOLEIL)
09/05/2016 15:30
Accelerator Physics
Poster
The aim of this project is to optimize the nonlinear beam dynamics of the Synchrotron SOLEIL storage ring using Multi-objective Genetic Algorithm (MOGA). MOGA uses ELEGANT as a tracking code to compute the on- and off-momentum acceptances as optimization objectives and the quadrupole and sextupole setting magnets as optimization variables. The off- and on-momentum acceptances are strongly...
M.
Themistoklis Williams
(LAL)
09/05/2016 15:30
Accelerator Physics
Poster
For the first time, a diamond sensor was operated for the characterisation of a high average-intensity gamma-ray beam.
Data was collected for gamma beam energies between 2 and 7 MeV, at the HI$\gamma$S
facility of TUNL.
The nanosecond-fast resolution of diamond detectors is exploited to distinguish bunches of gamma rays 16.8 ns apart.
It allows a precise direct determination of the...
Mlle
Liss Vazquez Rodriguez
(PhD)
09/05/2016 15:30
Nuclear Physics
Poster
The hyperfine structure splitting (hfs) and isotope shifts (IS) in the atomic transitions 4d10 5s 2S1/2 – 4d10 5p 2P3/2 will be measured for the isotopes 111-120Ag. The technique of choice will be collinear laser spectroscopy. A continuous-wave laser beam will be overlapped with the radioactive beam and at a precise set of laser frequencies the atoms fluoresce in the transitions of their...
Mlle
Coline Larmier
(CEA DEN-DANS)
09/05/2016 15:30
Nuclear Physics
Poster
In the context of reactor physics, the simulation of the transport of neutrons and photons (which obeys the Boltzmann equation) is based on deterministic or stochastic methods. The stochastic approach resorts to Monte Carlo codes, such as TRIPOLI-4®. Developed by the CEA, this code is used for criticality, shielding and nuclear instrumentation. In this context, the random walks of the...
M.
Adrien Stolidi
(CEA)
09/05/2016 15:30
Nuclear Physics
Poster
X-ray phase contrast imaging, in addition to classical attenuation imaging, has a lot of interest due to its high differentiation capability for low density materials. However, despite classical radiography, phase signal has to be retrieved by adding experimental material and/or applying sophisticated phase retrieval algorithm [1]. Best performances are achieved on synchrotron source but in...
Maxime Mougeot
(CSNSM)
09/05/2016 15:30
Nuclear Physics
Poster
Due to the inherent relationship with the binding energy, nuclear masses hold a fingerprint of the interactions taking place within a given nucleus. Small as it is, about one percent of the total mass of the system, the binding energy can give precious information on such phenomena as nuclear shell effects and deformation, especially on the way they evolve far from stability.
The...
M.
Mathias Pierre
(LPT Orsay)
09/05/2016 15:30
Cosmology & Astroparticles
Poster
We investigate a simple setup in which an excess in the di-photon invariant mass distribution
around $750$ GeV, as seen by the ATLAS and CMS collaborations, is originated
through a pair of collimated photon pairs. In this framework a scalar state
$s$ decays into two light pseudo-Goldstone bosons $a$, each of which subsequently decays into
a pair of collimated photons which are...
Mlle
Yiman YAN
(IPN Orsay)
09/05/2016 15:30
Nuclear Physics
Poster
A precise description of fission is essential for reactor safety, to assess the feasibility of waste transmutation and for the design of a next generation of reactors. However, despite a long history of work, the theoretical description of nuclear fission - one of the most complex processes on the nuclear scale - is still far from complete. In addition, information of fission of exotic...
Mlle
Anastasia Georgiadou
(IPN)
09/05/2016 15:30
Nuclear Physics
Poster
In the present work, the study of transfer reactions in 56 Ni is
presented. The study is focusing in the neutron-proton pairing, which
is a local interaction inside the nucleus. In addition with the mean
field potential in the nucleus pairing induces correlations. There are
two channels for pairing, one with isospin T=1 (isovector) and the
other with isospin T=0 (isoscalar), in...
Mme
Tasneem Rashid
(Laboratoire de l'Accelerateur Linéaire (LAL) - Université Paris Sud XI)
09/05/2016 15:30
Particle Physics
Poster
Active edge planar pixel sensors are promising candidates to instrument the inner layers of the
new ATLAS pixel detector for HL-LHC, thanks to its radiation tolerant properties and the increased fraction of active area due to a distance as low as 50 µm between the last pixel implants and the activated edge . This poster addresses the study of the electrical characterization of active edge...
M.
Liqiang QI
(IPN NESTER)
09/05/2016 15:30
Nuclear Physics
Poster
Presented here is my work on the study of prompt gamma emission in the fission mechanism. From a nuclear reactor physics point of view, it addresses the gamma heating issue in nuclear reactor cores. On the other hand, gamma emission can help understand the fission process in terms of fundamental physics. Results from experiments in 2016 at ALTO(Linear Accelerator and Tandem Orsay) by using the...
M.
Michal Rapala
(CEA Saclay)
09/05/2016 15:30
Nuclear Physics
Poster
My PhD is done in cooperation between the SPHN at CEA Saclay and the SPRC at Cadarache. It consists in the study of the fission process and the deexcitation of the fission fragments. The first step is the analysis of an experimental campaign performed in 2012 at ILL in Grenoble (EXILL), in which a U-235 and a Pu-241 target were irradiated by a beam of cold neutrons. A unique feature of the...
M.
Victor Renaudin
(LAL)
09/05/2016 15:30
Particle Physics
Poster
Semileptonic B decays with a $\tau$-lepton are a very interesting tool to probe the Physics beyond
Standard Model. Besides its precise theoretical predictions due to lepton flavor universality it
has been a hot topic since the evidence of a slight disagreement between BaBar, Belle and LHCb measurements
and the SM expected value of $R(D^{*})$. This gives us a chance to detect the presence of...
M.
Clément Chevillard
(Medical physics department, Institute Curie/ Paris/ France ; R&D Medical Physics, DOSIsoft/Cachan/France)
09/05/2016 15:30
Nuclear Physics
Poster
In vivo dosimetry consists in measuring in real time, during one or several treatment sessions, the dose actually received by the patient1Many researchers in the past year have improved methods to verify the correct dose delivery in the patient1. A simple method to determineIn the last 10 years the dose received by the patient during his treatment is to usehas been measured by an Electronic...
Maud airiau
(IPN)
09/05/2016 15:30
Nuclear Physics
Poster
Fission barriers of a few MeV induced by shell effects are predicted using macroscopic-microscopic structure model leading to the formation of the so-called island of stability for super heavy nuclei. Its position should be centered around new magic numbers expected at N=184, and between Z=114 and Z=126 depending on the model used for calculation.
Super heavy nuclei are synthesised by...
Mlle
Jana Crkovska
(IPN Orsay)
10/05/2016 10:15
Particle Physics
Poster
Collision of relativistic heavy ions produce a hot and dense matter constituted of deconfined quarks and gluons - the Quark-Gluon Plasma (QGP). Heavy quarks present a unique probe of QGP properties as, due to their large mass, they are created in the initial hard-scattering processes during the first stages of the collision. Hence they experience the whole evolution of the system. Measurements...
Mlle
Coralie Luchini
(IPN Orsay)
10/05/2016 10:15
Nuclear Physics
Poster
The application of nuclear technology in industry, research and medicine leads to the production of radionuclides that are likely to cause environmental pollution or internal contamination (through inhalation, ingestion or wound) of nuclear workers and/or public. Indeed, contaminations are present in the surroundings of uranium mining sites, radwaste disposal facilities, or after accidental...
Mlle
Kim-Khanh LE
(IPNO)
10/05/2016 10:15
Nuclear Physics
Poster
Concentrating solar power (CSP) systems which use concentrated sunlight to produce electricity by turning steam turbines have been receiving a lot of attention in recent years. However, as we all know, solar energy is a fluctuating resource because of the daily rotation of the earth, seasons and weather conditions. The challenge here is to store this energy and release it at the right time. An...
Mme
Marharyta ALOKHINA
(CEA/IRFU/SPP)
10/05/2016 10:15
Nuclear Physics
Poster
Positron emission tomography (PET) is a powerful nuclear imaging technique used widely nowadays in oncology, cardiology and neuropsychiatry. The PET technology consists in injecting the patient with a radioactive tracer. The decay of the tracer emits a positron which annihilate with an electron. As a result of the annihilation, two 511 keV gamma quanta are emitted back-to-back and registered...
M.
Renjun YANG
(LAL)
10/05/2016 10:15
Accelerator Physics
Poster
The Accelerator Test Facility (ATF), a prototype of final focus system for next generation of future linear collider, aims to focus the beams to nano-meter transverse size and providing 12 nm stability. Achieving these goals will require modeling, measurement and controlling of the transverse beam halo before interaction point (IP). This paper presents a experimental study of the distribution...
M.
Clement Leloup
(Irfu)
10/05/2016 10:15
Cosmology & Astroparticles
Poster
The current standard models, both in particle physics and cosmology, have been largely validated experimentaly with an unprecedented precision to this day. Yet, these models are not able to answer several important questions of modern physics. Two of them concern the nature of Dark Energy and Dark Matter, that have been highlighted from astrophysical and cosmological observations.
Several...
Mlle
Clotilde Canot
(Thésarde)
10/05/2016 10:15
Nuclear Physics
Poster
Positron emission tomography (PET) is a nuclear imaging technique widely used in
oncology. Decay of the tracer emits positrons, which annihilate in the nearby tissue. Two
gamma quanta with the energy 511 keV are produced by positron annihilation and allow
one to reconstruct the annihilation vertex and distribution of the tracer activity in the body
of the patient. The time-of-flight (TOF)...
M.
Jean-Baptiste Durrive
(Institut d'Astrophysique Spatiale)
10/05/2016 10:15
Cosmology & Astroparticles
Poster
Cosmological numerical simulations suggest that the Universe has a web-like structure, the nodes of which are galaxy clusters. These clusters are supplied with matter by gas flowing along the filaments interconnecting them. Part of this accretion occurs intermittently, which indicates that dense clumps of matter do not only form inside clusters themselves, but also either in voids, walls...
Mlle
Alice Defresne
(CSNSM)
10/05/2016 10:15
Accelerator Physics
Poster
a-Si:H/c-Si heterojunction solar cells have reached record efficiencies of 24.7% (22% in industry) [1]. The passivation of c-Si in silicon heterojunction solar cells is the key to achieve a high-efficiency. The abrupt discontinuity in the crystal structure at the amorphous/crystal interface induces a high density of dangling bonds, thus creating a large density of defects induced energy levels...
Michel Nowak
(CEA)
10/05/2016 10:15
Nuclear Physics
Poster
Reference shielding calculations are usually performed with Monte Carlo codes. When simulating rare events with Monte Carlo methods, it is necessary to use variance reduction techniques to reduce the statistical uncertainty on the expected result. Most of these techniques require a prior knowledge of the problem in the form of a so-called importance map, which represents the average...
M.
Florent Scarpa
(IPN Orsay - Paris-Sud U. - CNRS/IN2P3)
10/05/2016 10:15
Particle Physics
Poster
Transverse Momentum Dependent (TMD) factorisation is a systematic method to account for transverse part of parton momentum inside hadrons. In this formalism, the partonic scattering amplitude ("short-distance part" evaluated with Feynman rules) remains unmodified. It is instead factorised with correlators containing the transverse dependence.
TMD distributions are of great interest to...
Mlle
Maíra Dutra
(Laboratoire de Physique Théorique d'Orsay)
10/05/2016 10:15
Cosmology & Astroparticles
Poster
For more than 80 years ago, the existence of a "dark" component in our Universe was proposed regarding astrophysical observations. Since that time, several other hints (rotation curves of the galaxies, bullet-cluster, measurement of the Cosmological Microwave Background) came to confirm this hypothesis. However, the situation seems today even less clear than ever. This is the consequence of...
M.
hugues Paradis
(IRSN)
10/05/2016 10:15
Nuclear Physics
Poster
The laboratory of environmental radioactivity measurement performs around 2000 measurements per year by low level gamma ray spectrometry, either in the framework of the environmental surveillance in France handled by the IRSN, or for research or expertise purpose in the radioecology domain. In both cases the anthropogenic radioactivity in environment samples is measured at trace levels and...
Mlle
Pauline Zarrouk
(CEA-Saclay)
10/05/2016 10:15
Cosmology & Astroparticles
Poster
The eBOSS multi-object spectrograph has undertaken a survey of Quasars (QSO) in the redshift range 0.9 < z < 2.2. It will measure the growth rate of structures from the Redshift Space Distortions (RSD) of the 2-point correlation function and allow for a test of general relativity modifications and dark energy scenarios.
To perform this measurement, special care should be given to the RSD...
Mlle
Héléna Chesneau
(CEA)
10/05/2016 10:15
Particle Physics
Poster
The accuracy of patient and tumor localization for radiotherapy treatments has been improved by the emergence of radiographic image guidance. However, intensive use of Imaged-Guided Radiotherapy (IGRT) could add a significant extra dose to normal tissues and potentially amplify the risk for patients to develop a secondary radiation-induced cancer and side effects. The purpose of this Ph.D...
M.
Raphaël-David Lasseri
(IPNO)
10/05/2016 10:15
Nuclear Physics
Poster
Since the 50's the importance of quantum correlations to describe matter has been understood, first in atomic systems by Cooper and Froehlich and extended to Nuclei by Mott and Pines through an intuitive 'pair' models.
In a first part i'll discuss a modern interpretation of this phenomena and some applications.
In a second part I'll focus on more general type of correlations and possible...
Mohamad Ayoub
(Physique des particules)
10/05/2016 10:15
Particle Physics
Poster
Je suis en dernière année de thèse dans le groupe de recherche de Higgs en deux leptons taus dans ATLAS au laboratoire de l’accélérateur linéaire à Orsay. Durant ma 1ére année en 2013, j’ai travaillé dans le groupe de performance du lepton tau dans ATLAS et j’ai participé dans l’amélioration de la reconstruction et l’identification de ce lepton. Un lepton tau se désintegrent soit en canal...
Aurélie Bonhomme
(CEA)
10/05/2016 10:15
Particle Physics
Poster
Neutrino physics stays beyond the Standard Model. If neutrino oscillation involving masses mixing between three neutrino flavours seems today a valid theory, there are some hints for other neutrino families. The "reactor neutrino anomaly" is one of them and puts forward a deficit of electronic antineutrinos at short distance. This deficit can be interpreted as the existence of a *sterile*...
M.
Mathieu Lamoureux
(CEA Saclay, IRFU)
10/05/2016 10:15
Particle Physics
Poster
Neutrinos are the only matter particles in the Standard Model of particle physics that have only been observed with left handed chirality. If right handed neutrinos exist, they could be responsible for several phenomena that have no explanation within the Standard Model, including neutrino masses, the baryon asymmetry of the universe and dark matter.
The Neutrino Minimal Standard Model...
M.
Aurélien Soulié
(DEN-Service de Recherches de Métallurgie Physique, CEA, Université Paris-Saclay, F-91191, Gif-sur-Yvette, France)
10/05/2016 10:15
Nuclear Physics
Poster
Recent experimental studies on oxides crystallizing in the fluorite structures (UO2, CeO2 or cubic ZrO2) have shown that under MeV electron irradiations, some atypic extended defects can be created in these materials. Faulted non-stoichiometric dislocation loops (disk-shaped interstitial oxygen layers) have already been seen. These observations raise the question about the point defect...
M.
Clément DELAFOSSE
(IPNO)
10/05/2016 10:15
Nuclear Physics
Poster
Recent experimental discoveries have revealed that the neutron effective single particle evolution above $^{78}$Ni shows peculiar and unpredicted behaviours. Our study us mainly focussed on the neutron $g_{7/2}$ effective single particle energy (ESPE) evolution towards $^{78}$Ni. This evolution should be driven by the same tensor mechanism which produces a quasi-degeneracy of the...
M.
Florian Geslin
(IPNO/Thales)
10/05/2016 10:15
Accelerator Physics
Poster
Nowadays, the number of projects aiming at building high intensity proton linear accelerator is increasing thanks to a large field of applications: particles physics, nuclear physics, spallation source and some applications in material sciences, biology and nuclear waste reprocessing. All these linear accelerator projects are based on superconducting technology that allows high accelerating...
M.
Félix Hautot
(CSNSM (CNRS))
11/05/2016 14:30
Nuclear Physics
Poster
New developments in the field of robotics and computer vision enables to merge sensors to allow fast real-time localization of radiological measurements in the space/volume with near-real time radioactive sources identification and characterization, especially when premises statements are unknown. These capabilities lead nuclear investigations to a more efficient way for operators’ dosimetry...
95.
3D printing of anthropomorphic phantoms and validation of their usefulness in internal dosimetry
Mlle
Tiffany BEAUMONT
(IRSN)
11/05/2016 14:30
Nuclear Physics
Poster
*In vivo* counting is a monitoring method used to estimate the incorporation of radionuclides from spectrometric measurements. In practice, the calibration is performed using physical phantoms which are currently limited as compared with the human anatomy. Many researches are focused on the development of realistic calibrations using numerical phantoms and Monte Carlo simulations. Nowadays,...
M.
Bertrand Michaut
(CEA)
11/05/2016 14:30
Accelerator Physics
Poster
The French nuclear industry is looking into the extension of the operation time of pressurized water reactors (PWR) up to 60 years. The nuclear reaction occurs in a vessel which contains the core internals supporting the fuel assemblies. The lower parts of the internals are composed of Solution Annealed 304 austenitic stainless steel plates and Cold Worked 316 stainless steel bolts. Due to...
M.
Andre Govinda Stahl
(LLR)
11/05/2016 14:30
Particle Physics
Poster
The measurement of Psi(2S) meson yield in PbPb collisions compared to the J/psi meson is used to study the modifications of the charmonium production in PbPb due to effects like melting in the quark gluon plasma and statistical recombination. Previous results reported by the CMS Collaboration using pp and PbPb data at sqrt(s_NN) = 2.76 TeV, have shown that the Psi(2S) meson is more suppressed...
Mlle
Valentina NOVATI
(CNRS-CSNSM)
11/05/2016 14:30
Particle Physics
Poster
My thesis subject deals with neutrino physic. In particular it is connected to the CUORE experiment, whose purpose is to search for the neutrinoless double beta decay of 130Te, through the use of bolometers based on TeO2. My thesis deals with the data analysis of the current experiment, but also with the design and the test of an innovative type of bolometer that will enhance the sensitivity...
M.
Frederic Georges
(IPN)
11/05/2016 14:30
Nuclear Physics
Poster
The internal structure of the nucleon - that is, what ordinary matter is made of and what the laws describing it are at their most fundamental level - is still not fully understood by modern nuclear physics. Form factors provide insight about parton positions while parton distribution functions give information about their momentum distribution inside the nucleon, but no correlations can be...
Giulia Negro
(CEA-Saclay Irfu/SPP)
11/05/2016 14:30
Particle Physics
Poster
Detailed studies on data at 0T in order to understand the CMS Electromagnetic Calorimenter performances during data taking at 0T of the Run2 of LHC will be presented, together with their comparison with data at 3.8T of Run2.
Also data-MC comparisons in order to understand the remaining data-MC discrepancies at 3.8T will be shown.
Nancy HUPIN
(CEA Saclay)
11/05/2016 14:30
Nuclear Physics
Poster
The structural evolution on the far neutron-rich side of stability is critical for defining the features of the elemental abundance distribution created during the rapid-neutron capture process (r-process). A potentially large shell-gap was historically predicted at N=70 in $^{110}$Zr, which could significantly modify the r-process abundances before the A=130 peak. Recent lifetime measurements...
M.
Mehdi DRISSI
(CEA/SPhN)
11/05/2016 14:30
Nuclear Physics
Poster
Even though the physics of atomic nuclei is a low-energy realization of QCD, a direct link between the two is concealed by the strongly coupling nature of QCD at low energies. Nevertheless, exploiting the separation of relevant low- and high-energy scales, chiral EFT, built only on nucleons and pions degrees of freedom, generates an implicit connection, providing a systematic framework that...
Mme
Marie-Coralie Delattre
(IPNO)
11/05/2016 14:30
Nuclear Physics
Poster
The objective of my thesis is to study the one particle orbitals when getting closer to the 78Ni.
Are the N=50 and Z=28 gaps stay big enough to ensure the magicity of 78Ni?
Concretely, it’s about studying nuclei in the isotonic chains N=49 and N=51, 79,81Zn fed by beta and beta-n decay of 79,81Cu and 80Cu. The low energy states in daughter nuclei will help to reconstruct the 1 particle / 1...
M.
Luis Ammour
(Université Paris-Sud - IMNC)
11/05/2016 14:30
Nuclear Physics
Poster
The purpose of MAPSSIC project is to provide an innovative tool for imaging beta+ radiopharmaceuticals in rodents brain, in order to assess brain functional processes. Complementary to others imaging modalities (such as Positron Emission Tomography), MAPSSIC distinguishes itself by performing real time images on awake and fully freely-moving animals, a requirement for concomitant behavioral...
M.
Petar Marevic
(CEA, IPN)
11/05/2016 14:30
Nuclear Physics
Poster
The relativistic mean-field models, based on the energy density functionals theory and extended to include pairing correlations, provide a very good microscopic description of ground-state properties of atomic nuclei. However, in order to calculate excitation spectra and electromagnetic transition rates, it is necessary to take into account collective correlations that arise from symmetry...
M.
Pierre Arthuis
(CEA/DRF/IRFU/SPhN)
11/05/2016 14:30
Nuclear Physics
Poster
The recent development of nuclear many-body ab initio methods has extended their application range to middle-mass doubly-closed shell nuclei and light doubly-open shell ones in the past few years, but heavy nuclei are at the moment out of reach. On the contrary, energy density functionals (EDF) have been around for decades, covering the whole nuclear chart. However, being based on...
M.
Laurent Graziano
(CEA)
11/05/2016 14:30
Nuclear Physics
Poster
In the recent years a solver based on the Method of Characteristics (MOC) allowing the treatment of
$3$D extruded geometries has been developed inside the TDT module of APOLLO$3$. The standard Step Constant (SC) approximation is used and results show an excellent agreement with Monte-Carlo simulations. However a fine mesh refinement is needed to converge, due to strong flux gradients. An...
M.
Florian Haurais
(EDF RetD)
11/05/2016 14:30
Nuclear Physics
Poster
This poster presents the main results of a study conducted to quantify the degradation state of Zr-based fuel claddings submitted to severe accident conditions in a nuclear reactor core: high temperatures and pure steam or air-steam mix. Due to the progressive thickening of a dense and protective ZrO2 layer, the oxidation kinetics of Zr-based claddings in steam, at high temperatures typical of...
Mlle
Lisa Belkacemi
(CEA Saclay)
11/05/2016 14:30
Nuclear Physics
Poster
Reactor pressure vessel (RPV) steels embrittlement under neutron irradiation is the main lifetime limiting factor of nuclear reactors. The RPV embrittlement is primary due to the impeding of dislocation glide caused by their interaction with nanometric clusters composed of point defects and/or solute atoms which form under irradiation. Point defect clustering can lead to the formation of...
M.
Charles Delporte
(LAL)
11/05/2016 14:30
Particle Physics
Poster
In July 2012, the ATLAS and CMS experiments at the LHC reported the observation of a new particle with a mass about 125 GeV and properties consistent with that expected for the Higgs boson in the Standard Model. Especially, the SM Higgs boson decay channel H->bb is predicted to have a branching ratio about 57% for mH = 125 GeV. Hence, its observation is crucial in order to access to the Higgs...
Mlle
Anastasiia Zolotarova
(CEA/IRFU/SPP)
11/05/2016 14:30
Particle Physics
Poster
Neutrinoless double beta decay is a very rare nuclear process whose
observation would provide essential information on neutrino properties. My PhD
thesis subject focuses on the search for this phenomenon in the isotope 100Mo. The thesis activity aims at preparing and performing an underground demonstrator
experiment named LUCINEU.
...
M.
Amar Boukhari
(CNRS)
11/05/2016 14:30
Particle Physics
Poster
PHENIICS School
Research thematic: nuclear physics.
Laboratory: Centre de Sciences Nucléaire et de Sciences de la Matière (CSNSM)
Thesis director: Georgi Georgiev
Amar Boukhari
1st year of PhD
amar.boukhari@csnsm.in2p3.fr
Title: Structure of exotic nuclei. Spin-oriented radioactive...
Quentin Luce
(Institut de Physique Nucléaire d'Orsay)
11/05/2016 14:30
Cosmology & Astroparticles
Poster
The Pierre Auger Observatory is today the largest observatory built, with a ground surface of 3000 km², dedicated to the observation of ultra-high energy cosmic rays (>10^18 eV). At these energies we found two structures in the energy spectrum of the cosmic rays (CRs): the ankle (~ 4.10^18 eV) and the GZK cut-off (~5.10^19 eV) which are really interesting to understand the origin of the CRs...
Mlle
Shifali SINGH
(CEA, Cadarache)
11/05/2016 14:30
Nuclear Physics
Poster
In case of a severe accident scenario in sodium-cooled fast reactors, due to transient over power accident (TOPA) or unprotected loss of flow accident (ULOFA) the fuel might melt generating a hot mixture named corium. When the hot molten fuel (≈ 3000 K) issuing from the degraded core comes in contact with sodium, molten fuel-coolant interaction (FCI) will occur, which can be explosive. The...
Mlle
najah mejai
(CSNSM)
11/05/2016 14:30
Nuclear Physics
Poster
Mon travail de thèse concerne l’étude de l’évolution structurale sous faisceaux d’ions d’oxydes de terres rares binaires de structure cubique. L’objectif est double. Premièrement, mettre en évidence les changements structuraux intervenant dans ces conditions hors équilibre et en comprendre l’origine, en vue de l’utilisation de ces matériaux dans le domaine de l’énergie nucléaire. Deuxièmement,...
