0000000000418593

AUTHOR

E. Kossionides

showing 3 related works from this author

Neutron measurements for advanced nuclear systems: The n_TOF project at CERN

2012

A few years ago, the neutron time-of-flight facility n_TOF was built at CERN to address some of the urgent needs of high-accuracy nuclear data for Accelerator Driven Systems and other advanced nuclear energy systems, as well as for nuclear astrophysics and fundamental nuclear physics. Thanks to the characteristics of the neutron beam, and to state-of-the-art detection and acquisition systems, high quality neutron cross-section data have been obtained for a variety of isotopes, many of which radioactive. Following an important upgrade of the spallation target and of the experimental area, a new measurement campaign has started last year. After a brief review of the most important results obt…

Nuclear and High Energy PhysicsAstrofísica nuclearNuclear engineeringNuclear Theory[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciences7. Clean energyNuclear physics0103 physical sciencesNuclear astrophysicsSpallationNeutron010306 general physicsNuclear ExperimentInstrumentationPhysics:Energies::Energia nuclear [Àrees temàtiques de la UPC]NeutronsLarge Hadron Collider:Física [Àrees temàtiques de la UPC]010308 nuclear & particles physicsNuclear fissionNuclear dataNeutron radiationNuclear technologyEnergia nuclearPhysics::Accelerator PhysicsFísica nuclearSpallation Neutron Source
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Neutron cross section measurements at n_TOF for ADS related estudies

2005

A neutron Time-of-Flight facility (n_TOF) is available at CERN since 2001. The innovative features of the neutron beam, in particular the high instantaneous flux, the wide energy range, the high resolution and the low background, make this facility unique for measurements of neutron induced reactions relevant to the field of Emerging Nuclear Technologies, as well as to Nuclear Astrophysics and Fundamental Nuclear Physics. The scientific motivations that have led to the construction of this new facility are here presented. The main characteristics of the n_TOF neutron beam are described, together with the features of the experimental apparata used for cross-section measurements. The main res…

HistoryAstrofísica nuclearNeutron cross sectionsNuclear transmutationNuclear engineeringNuclear TheoryNuclear physicsNeutrons -- SeccionsEducationNuclear physicsRadiació ionitzant -- Mesures de seguretatRadioactive wastesNeutron cross sectionNuclear astrophysicsNeutronNuclear ExperimentPhysicsLarge Hadron Collider:Física [Àrees temàtiques de la UPC]Time-of-flight mass spectrometryRadioactive wasteNeutron radiationWaste disposalResidus radioactiusComputer Science ApplicationsShielding (Radiation)Physics::Accelerator PhysicsNuclear astrophysicsFísica nuclearNucleon
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Measurement of the n-TOF beam profile with a micromegas detector

2004

A Micromegas detector was used in the neutron Time-Of-Flight (n_TOF) facility at CERN to evaluate the spatial distribution of the neutron beam as a function of its kinetic energy. This was achieved over a large range of neutron energies by using two complementary processes: at low energy by capture of a neutron via the 6Li(n,[alpha])t reaction, and at high energy by elastic scattering of neutrons on gas nuclei (argon+isobutane or helium+isobutane). Data are compared to Monte Carlo simulations and an analytic function fitting the beam profile has been calculated with a sufficient precision to use in neutron capture experiments at the n_TOF facility. http://www.sciencedirect.com/science/artic…

Elastic scatteringPhysicsNuclear and High Energy PhysicsArgonPhysics::Instrumentation and DetectorsAstrophysics::High Energy Astrophysical PhenomenaBeam profileNuclear Theorychemistry.chemical_elementMicroMegas detectorNUCLEAR PHYSICSNeutron radiationNuclear physicsNeutron capturechemistryNEUTRON BEAMSNeutron cross sectionMICROMEGAS DETECTORNeutron detectionNeutron beam profilerNeutronNuclear ExperimentInstrumentationMicromegas
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