0000000001019498

AUTHOR

C. Hermerel

showing 2 related works from this author

Characterization of the Microshell Surface Using Holography

2011

AbstractTo characterize the shape, the quality, and the roughness of microshells, digital holographic microscopy technology is used because it offers an appropriate ability to these studies. It captures holograms to reconstruct a double image, one for the intensity and another one for the phase. Using rotation axis, bump counting for the complete microshell surface is possible with a very high speed. Using image stitching and three-dimensional surface rebuilding software, mapping can be done in a few minutes. Each bump can then be characterized on the map by its position, diameter, and height.

Surface (mathematics)Nuclear and High Energy PhysicsMaterials sciencebusiness.industryMechanical EngineeringPhase (waves)HolographySurface finishlaw.inventionImage stitchingOpticsNuclear Energy and EngineeringPosition (vector)lawGeneral Materials ScienceDigital holographic microscopybusinessRotation (mathematics)Civil and Structural EngineeringFusion Science and Technology
researchProduct

A Model to Characterize the D-T Layer of ICF Targets by Backlit Optical Shadowgraphy

2005

A numerical model is presented in order to modelize the bright ring that appears in backlit optical shadowgraphy on a transparent hollow sphere with a solid deuterium-tritium layer inside. This novel model is based on computational calculations applied to the problem of the targets used in inertial confinement fusion. The model takes into account the influences of the optical imaging system (numerical aperture, source divergence, camera resolution, etc.) and the effect of the capsule itself, diameter, thickness, and refractive index, and allows one to analyze the inner surface of a capsule in terms of thickness and roughness.

Nuclear and High Energy PhysicsMaterials scienceComputer simulationbusiness.industry020209 energyMechanical Engineering02 engineering and technologySurface finishBacklightShadowgraphy01 natural sciences010305 fluids & plasmasNumerical apertureOpticsNuclear Energy and EngineeringPhysics::Plasma Physics0103 physical sciences0202 electrical engineering electronic engineering information engineeringGeneral Materials SciencebusinessImage resolutionRefractive indexInertial confinement fusionCivil and Structural EngineeringFusion Science and Technology
researchProduct