Search results for "Neutron imaging"

showing 3 items of 13 documents

IMAGINE: A Cold Neutron Imaging Station at the Laboratoire Léon Brillouin

2015

International audience; A second cold neutron imaging station has been open to users at the Laboratoire Léon Brillouin. The station is designed for high resolution neutron imaging and tomography. The typical field of view is 100x100 mm2 with a spatial resolution of 100 μm. Betterspatial resolutions (∼50 μm) can be achieved when reducing the field of view down to 30x30mm2. The L/D ratio can be varied from 200 to1000with pinhole sizes ranging from 20 to7 mm. Future upgrades will provide capabilities for energy resolved measurements using either a velocity selector or a double crystal monochromator. The possibility to perform polarized neutron experiments will also be provided next year.

Physicsbusiness.industryNeutron imagingField of viewRangingPhysics and Astronomy(all)7. Clean energyCold neutronlaw.inventionBrillouin zoneOpticslawNeutron imagingPinhole (optics)NeutronNeutron radiography[SDV.BBM]Life Sciences [q-bio]/Biochemistry Molecular BiologybusinessImage resolutionMonochromator
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Pore structure and water transfer in Pietra d’Aspra limestone: A neutronographic study

2020

Neutron radiography (NR) was here applied to study the effects of two different commercially available consolidants on the water absorption properties in a particular type of limestone (biocalcarenite), known as Pietra d’Aspra stone, which is one of the most extensively used lithotypes in Sicilian Baroque buildings. Our attention was mainly focused on the evaluation, using a fast and nondestructive visualization of water motion through capillarity, of the effectiveness of such layers as consolidating agents in view of preserving and maintaining both old and modern structures. The biocalcarenite was treated with nanosilica (Nano Estel®) and nanolime (CaLoSil®) by brushing it until full satur…

Porous limestonesMaterials science010504 meteorology & atmospheric sciencesMineralogy02 engineering and technologylcsh:Technology01 natural sciencesArtificial weathering Capillarity Consolidant Neutron radiography Porous limestones Water kineticslcsh:ChemistryArtificial weatheringWater kineticsConsolidantsConsolidantGeneral Materials Sciencelcsh:QH301-705.5InstrumentationSettore GEO/09 -Georis. Miner.e Appl.Mineral.-Petrogr. per l'Ambi.ed i B.Cult.0105 earth and related environmental sciencesFluid Flow and Transfer Processeslcsh:TArtificial weathering; Capillarity; Consolidants; Neutron radiography; Porous limestones; Water kineticsProcess Chemistry and TechnologyNeutron imagingGeneral Engineering021001 nanoscience & nanotechnologylcsh:QC1-999Computer Science ApplicationsPorous limestonelcsh:Biology (General)lcsh:QD1-999Water transferlcsh:TA1-2040CapillarityNeutron radiographyneutron radiography; porous limestones; consolidants; water kinetics; artificial weathering; capillaritylcsh:Engineering (General). Civil engineering (General)0210 nano-technologylcsh:Physics
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Neutron Radiography Visualization of Solid Particles in Stirring Liquid Metal

2015

Abstract This paper presents the analysis of the first dynamic neutron radiography experiment that visualized motion of solid particles in liquid metal, which was stirred by a system of four counter-rotating magnets. The paper also contains the quantitative results derived from neutron images: the distribution of particle concentration, number of admixed particles and velocities as functions of the magnet rotation speed.

permanent magnet stirrerLiquid metalMaterials scienceSolid particleNeutron imagingRotational speedsolid particlesPhysics and Astronomy(all)Molecular physicsVisualizationNuclear magnetic resonanceliquid metalneutron radiographyMagnetParticleNeutronPhysics Procedia
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