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Accueil > Recherche > Aval du Cycle Electronucléaire

Publications

(more recent)

[in2p3-01373000] The neutrons for science facility at SPIRAL-2

29 septembre 2016

Numerous domains, in fundamental research as well as in applications, require the study of reactions induced by neutrons with energies between a few MeV and a few tens of MeV. Reliable measurements are necessary to improve the evaluated databases used by nuclear transport codes. It concerns a (...)

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[in2p3-01340242] Excited nuclear matter at Fermi energies: From transport properties to the equation of state

1er juillet 2016

Properties of excited nuclear matter are one of the main subject of investigation in Nuclear Physics. Indeed, the response of nuclear matter under extreme conditions encountered in heavy-ion induced reactions (large compression, thermal and collective excitations, isopin diffusion) around the (...)

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[in2p3-01274914] Monte Carlo MSM correction factors for control rod worth estimates in subcritical and near-critical fast neutron reactors

17 février 2016

The GUINEVERE project was launched in 2006, within the 6th Euratom Framework Program IP-EUROTRANS, in order to study the feasibility of transmutation in Accelerator Driven subcritical Systems (ADS). This zero-power facility hosted at the SCK·CEN site in Mol (Belgium) couples the fast subcritical (...)

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[in2p3-01235346] Monte Carlo MSM correction factors for control rod worth estimates in subcritical and near-critical fast neutron reactors

3 décembre 2015

The GUINEVERE project was launched in 2006, within the 6th Euratom Framework Program IP-EUROTRANS, in order to study the feasibility of transmutation in Accelerator Driven subcritical Systems (ADS). This zero-power facility hosted at the SCK·CEN site in Mol (Belgium) couples the fast subcritical (...)

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[in2p3-01188809] In-medium effects around the Fermi energy

8 octobre 2015

We study nuclear stopping in central collisions for heavy-ion induced reactions in the Fermi energy domain (15-100 AMeV). Using the large dataset provided by the 4π array INDRA, we determine that stopping can be directly related to the transport properties in the nuclear medium. By looking (...)

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[in2p3-01177675] Estimate of the reactivity of the VENUS-F subcritical configuration using a Monte Carlo MSM method

20 juillet 2015

The GUINEVERE project was launched in 2006 in order to study the feasibility of transmutation in Accelerator Driven subcritical Systems (ADS). This facility, hosted at the Belgian Nuclear Research Center SCK·CEN, couples the fast subcritical lead reactor VENUS-F with an external neutron source (...)

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[in2p3-01170130] Scintillation properties of N2 and CF4 and performances of a scintillating ionization chamber

18 juillet 2015

In this work, we studied the emission yields, decay times and coincidence resolving times (CRT) of two gases, nitrogen (N2) and tetrafluoromethane (CF4), used for particle detection in the context of fission products measurement. The setup was made of an ionization chamber and two (...)

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[hal-01113056] Light-ion production in 175 MeV quasi-monoenergetic neutron-induced reactions on iron and bismuth and comparison with INCL4 calculations

2 juillet 2015

importance for several different applications, notably accelerator-driven incineration of nuclear waste. The Medley setup located at The Svedberg Laboratory in Uppsala, Sweden was used for a series of measurements of p, d, t, 3He and alpha particle production from 175 MeV neutrons on various (...)

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[in2p3-00492917] Phase diagram of the charged lattice-gas model with two types of particles

1er juillet 2015

A lattice-gas model with two types of particles, a particle-dependent short-range coupling and a long-range repulsive Coulombic interaction, is introduced. The phase diagram of an isolated finite system of 129 particles is constructed using the bimodality properties of the observables' (...)

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[in2p3-01109546] Reactivity Measurements at GUINEVERE Facility Using the Integral kp Method

1er juillet 2015

In the framework of the GUINEVERE (EUROTRANS-IP FP6) and FREYA (FP7) projects, a two-level procedure is developed to measure the time variations of an ADS reactivity ρ(t). First, the time variations of the reactor power and neutron source intensity are monitored online, allowing to extract the (...)

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[in2p3-01144635] Study of Space-energy Effects in Subcritical Reactor within a Time-dependent Multi-group 1-Dimensional Diffusion Approach

1er juillet 2015

The GUINEVERE facility hosted at the SCK·CEN site in Mol (Belgium) couples the fast subcritical lead reactor VENUS-F with an external neutron source provided by interactions of deuterons delivered by the GENEPI-3C accelerator and a tritiated target located at the reactor core center. Part of the (...)

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[in2p3-01109528] An Alternative Source Jerk Method Implementation for the Subcriticality Estimation of the VENUS-F Subcritical Core in the FREYA Project

1er juillet 2015

As a prolongation of the FP-6 GUINEVERE (Generation of Uninterrupted Intense NEutron pulses at the lead VEnus REactor) project at the VENUS-F facility at SCK• CEN, the FP-7 FREYA (Fast Reactor Experiments for hYbrid Applications) project was launched in 2011. The FREYA project aims at validating (...)

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[in2p3-00797422] The Neutrons For Science facility at SPIRAL-2

1er juillet 2015

The Neutrons For Science (NFS) facility is a component of SPIRAL-2 laboratory under construction at Caen (France). SPIRAL-2 is dedicated to the production of high intensity Radioactive Ions Beams (RIB). It is based on a high-power linear accelerator (LINAG) to accelerate deuterons beams in (...)

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[in2p3-00658478] The Neutrons for Science Facility at SPIRAL‐2

1er juillet 2015

The "Neutrons for Science" (NFS) facility will be a component of SPIRAL‐2, the future accelerator dedicated to the production of very intense radioactive ion beams, under construction at GANIL in Caen (France). NFS will be composed of a pulsed neutron beam for in‐flight measurements and (...)

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[in2p3-00601804] Medley spectrometer for light ions in neutron-induced reactions at 175 MeV

1er juillet 2015

We have upgraded the Medley spectrometer to measure neutron-induced double differential cross-sections for light-ion production, with neutron energies up to 175 MeV. Measurements were performed at the quasi-monoenergetic neutron beam line at the The Svedberg Laboratory, in Uppsala (Sweden). (...)

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[in2p3-00821039] Light-ion production from O, Si, Fe and Bi induced by 175 MeV quasi-monoenergetic neutron

1er juillet 2015

We have measured double-differential cross sections in the interaction of 175 MeV quasimonoenergetic neutrons with O, Si, Fe and Bi. We have compared these results with model calculations with INCL4.5-Abla07, MCNP6 and TALYS-1.2. We have also compared our data with PHITS calculations, where the (...)

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[in2p3-01109378] Static Modal Analysis of the Current-to-Flux Subcriticality Monitor for Accelerator-Driven Systems

1er juillet 2015

With Accelerator-Driven Systems (ADS), the incineration of large quantities of minor actinides is envisaged by coupling a particle accelerator to a subcritical core. Despite the subcritical operation of the core, a monitoring tool is indispensable in an ADS for both safety and operational (...)

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[in2p3-00920222] Structure of $^{13}$Be probed via secondary beam reactions

1er juillet 2015

The low-lying level structure of the unbound neutron-rich nucleus $^13$Be has been investigated via breakup on a carbon target of secondary beams of $^14,15$B at 35 MeV/nucleon. The coincident detection of the beam velocity $^12$Be fragments and neutrons permitted the invariant mass of the (...)

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[in2p3-00829300] Current progress and future plans of the FREYA Project

1er juillet 2015

Reactor physics experiments are required for the design of a Fast Spectrum Transmutation Experimental Facility MYRRHA/FASTEF working in subcritical mode and in critical mode. Reactor physics experiments aim to validate a methodology for on-line subcriticality monitoring. For this purpose, (...)

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[in2p3-00829301] Reactivity monitoring using the area method for the subcritical VENUS-F core within the framework of the FREYA Project

1er juillet 2015

Accelerator-Driven Systems (ADS) could be employed to incinerate minor actinides and so partly contribute to answer the problem of nuclear waste management. An ADS consists of the coupling of a subcritical fast reactor to a particle accelerator via a heavy material spallation target. The (...)

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[in2p3-00819081] Double Differential Cross Sections for Light-Ion Production from C, O, Si, Fe and Bi Induced by 175 MeV Quasi-Monoenergetic Neutrons

1er juillet 2015

Accelerator-driven incineration of nuclear waste may play an important role in future scenarios both in countries investing in the nuclear renaissance and in countries deciding to phase out nuclear energy. However, development of accelerator-driven systems requires new and more reliable (...)

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[in2p3-00858339] Nuclear stopping for heavy-ion induced reactions in the Fermi Energy range : from 1-Body to 2-Body dissipation

1er juillet 2015

We address the stopping in heavy-ion induced reactions around the Fermi energy using central collisions recorded with \emphINDRA $4\pi$ array. The stopping is minimal around the Fermi energy and corresponds to the disappearance of the Mean-Field effects and the appearance of nucleon-nucleon (...)

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[in2p3-00636423] Recent results from INDRA

1er juillet 2015

We present an overview of recent results & advances within the INDRA collaboration

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[in2p3-00691966] Study of pre-equilibrium emission of light complex particles from Fe and Bi induced by intermediate energy neutrons

1er juillet 2015

We have measured double differential cross sections (DDX) for emission of hydrogen- and helium-isotopes in the interaction of 175 MeV quasi-monoenergetic neutrons with Fe and Bi using the Medley setup at the The Svedberg Laboratory (Uppsala, Sweden). We compared experimental DDX with (...)

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[in2p3-00919126] FALSTAFF: A new tool for fission studies

1er juillet 2015

The future NFS installation will produce high intensity neutron beams from hundreds of keV up to 40MeV. Taking advantage of this facility, data of particular interest for the nuclear community in view of the development of the fast reactor technology will be measured. The development of an (...)

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[in2p3-01109518] Reactivity Measurement of the Lead Fast Subcritical VENUS-F Reactor Using Beam Interruption Experiments

1er juillet 2015

In order to incinerate minor actinides and thus to reduce the issues linked to nuclear waste management, Accelerator-Driven Systems (ADS) are being under study. An ADS consists in the coupling of a particle accelerator with a sub-critical fast reactor. The on-line reactivity monitoring is a (...)

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[in2p3-00819085] Fission Fragment characterization with FALSTAFF at NFS

1er juillet 2015

The Neutrons for Science (NFS) facility will be one of the first installations of the SPIRAL2 facility. NFS will be composed of a time-of-flight baseline and irradiation stations and will allow studying neutron-induced reactions for energies going from some hundreds of keV up to 40 MeV. (...)

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[in2p3-00414431] The GUINEVERE Project for Accelerator Driven System Physics

1er juillet 2015

The GUINEVERE project is part of the EUROTRANS Integrated Project of the 6th EURATOM Framework Programme. It is mainly devoted to ADS on-line reactivity monitoring validation, sub-criticality determination and operational procedures (loading, start-up, shut-down, ...) as a follow-up of the MUSE (...)

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[in2p3-00875063] Isospin effects and symmetry energy studies with INDRA

1er juillet 2015

The equation of state of asymmetric nuclear matter is still controversial, as predictions at subsaturation as well as above normal density widely diverge. We discuss several experimental results measured in heavy-ion collisions with the INDRA array in the incident energy range 5-80 MeV/nucleon. (...)

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[in2p3-01109556] Monte Carlo Assessment of Spatial and Energy Effects in the VENUS-F Subcritical Configurations and Application for Reactivity Determination

1er juillet 2015

Experiments with a subcritical core and an external pulsed neutron source (PNS) have been performed at the VENUS-F reactor of the SCK-CEN during the year 2012 within the frame of the FREYA project of the 7th European Framework Programme. Different reactivity levels, obtained by varying the (...)

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[in2p3-00493300] MCNPX simulations of the SCANDAL setup for measurement of neutron scattering cross section at 175 MeV

1er juillet 2015

The Scattered Nucleon Detection Assembly (SCANDAL) setup at The Svedberg Laboratory has been used to produce neutron elastic scattering cross section data at 175 MeV for bismuth and iron. This work presents MCNPX simulations of the experimental setup and aims to describe processes and data (...)

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[in2p3-00494230] Study of Nuclear Stopping in Central Collisions at Intermediate Energies

1er juillet 2015

Nuclear stopping has been investigated in central nuclear collisions at intermediate energies by analyzing kinematically complete events recorded with the help of the 4π multidetector INDRA for a large variety of symmetric systems. It is found that the mean isotropy ratio defined as the ratio of (...)

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[in2p3-01144633] Monte Carlo MSM Correction Factors for Control Rod Worth Estimates in Subcritical and Near-Critical Fast Neutron Reactors

1er juillet 2015

The VENUS-F reactor core is very modular and its reactivity can range from deep subcritical to critical by varying the number of fuel assemblies in the core. It is also equipped with six safety rods, one absorbent rod for rod drop experiments and two boron carbide control rods which allow for a (...)

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[in2p3-00880410] FALSTAFF: a novel apparatus for fission fragment characterization

1er juillet 2015

The study of nuclear fission and in particular the correlation between the produced fragments and the associated neutrons is encountering renewed interest since new models are available on the market and a large set of applications show a rather stringent demand on high quality nuclear data. (...)

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[in2p3-00829462] Operation of the accelerator driving the VENUS-F core for the low power ADS experiments Guinevere and FREYA at SCK-CEN

1er juillet 2015

GUINEVERE and FREYA are European projects devoted to experimental studies of accelerator-driven system feasibility. They are mainly dedicated to on-line reactivity monitoring, subcriticality determination and operational procedures. An experimental reactor of SCK•CEN (Belgium) modified into a (...)

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[in2p3-00642133] Light-Ion Production in the Interaction of 175 MeV Neutrons with Iron and Bismuth

1er juillet 2015

We have measured double-differential (angle and energy) cross sections for light-ion (p, d, t, (3)He, and a) production in the interaction of quasi-monoenergetic 175 MeV neutrons with iron and bismuth. Measurements have been performed at the The Svedberg Laboratory, Uppsala (Sweden), using the (...)

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[in2p3-00642143] Measurements of Inelastic Neutron Scattering at 96 MeV from Carbon, Iron, Yttrium and Lead

1er juillet 2015

Inelastic neutron scattering for (12)C, (58)Fe, (89)Y and (208)Pb have been measured at 96 MeV at the The Svedberg Laboratory in Uppsala and double-differential cross sections are reported. Data cover an excitation energy range of 0-45 MeV and the angular intervals are 28 - 58 degrees for (...)

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[in2p3-00642134] Neutron Elastic Scattering Cross-Section Measurements at 175 MeV

1er juillet 2015

An off-line data analysis of an experimental campaign on elastic neutron cross-section measurements at 175 MeV for iron and bismuth performed by the SCANDAL set-up has started. Energy calibration has shown expected values of energy resolution and MCNPX simulations have provided suggestions for (...)

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[in2p3-00544843] A Medley with over ten years of (mostly) light-ion production measurements at The Svedberg Laboratory

1er juillet 2015

Over the past years an experimental programme has been run at the neutron beam of The Svedberg Laboratory with the aim to study light-ion production induced by 96 and 175 MeV neutrons for a wide variety of targets. The measurements have been conducted using the Medley facility which allows (...)

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[in2p3-00462634] A study of stopping power in nuclear reactions at intermediate energies

1er juillet 2015

We show a systematic experimental study based on INDRA data of the stopping power in central symmetric nuclear reactions. Total mass of the systems goes from 80 to 400 nucleons while the incident energy range is from 12 AMeV to 100 AMeV. The role of isospin diffusion at 32 and 45 MeV/nucleon (...)

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[in2p3-00544844] Neutron induced light-ion production from Iron and Bismuth at 175 MeV

1er juillet 2015

We have measured light-ion (p, d, t, 3He and α) production in the interaction of 175 MeV neutrons with iron and bismuth, using the MEDLEY setup. A large set of measurements at 96 MeV has been recently completed and published, and now higher energy region is under investigation. MEDLEY is a (...)

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[in2p3-01066044] In-medium effects for nuclear matter in the Fermi energy domain

1er juillet 2015

We study nuclear stopping in central collisions for heavy-ion induced reactions in the Fermi energy domain, between $15$ and $100$ A\,\textrmMeV. Using the large dataset of exclusive measurements provided by the $4\pi$ array \emphINDRA, we determine the relative degree of stopping as a function (...)

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[in2p3-00798277] FALSTAFF : a New Tool for Fission Fragment Characterization

1er juillet 2015

The future Neutron For Science (NFS) facility to be installed at SPIRAL2 (Caen, France) will produce high intensity neutron beams from hundreds of keV up to 40 MeV. Taking advantage of this facility, data of particular interest to the nuclear community, in view of the development of fast (...)

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