Method and device for determining the density of rocky volumes or artificial buildings
AssigneesUniversite D'Aix-Marseille, Centre National De La Recherche Scientifique, Universite Nice Sophia Antipolis, Universite D'Avignon Et Des Pays De Vaucluse
InventorsIgnacio Lazaro Roche, Pierre Elie Marie Salin, Stéphane Gaffet, Thomas Serre, Jean-Baptiste Decitre, Fanny Catherine Hivert
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Abstract
A device for determining the density of volumes of material to be imaged is provided, the device comprising a gas detector having first and second chambers separated by a micro-screen, making it possible to detect a stream of ionising particles, to calculate the path of each ionising particle and the stream of ionising particles passing through the first chamber, and comprising computing means for converting the calculations of paths and streams into information on the volume density of the material to be imaged.
Claims16
A device for determining the density of volumes of matter to be imaged, comprising a detector of ionizing particles for detecting a flux of ionizing particles and for calculating the path of each ionizing particle through the detector, and comprising computing means coupled to the detector in order to convert the calculations of ionizing-particle path into information on the density of the volume of matter to be imaged, the detector being a gaseous detector having a drift first chamber allowing primary electrons to be generated and an amplification second chamber separated from the first chamber by a micro-grid, the device being wherein the first chamber comprises first biasing means configured depending on the height of said first chamber to obtain, in the first chamber, a uniform, constant and controlled electric field in order to make the primary electrons drift toward the micro-grid over the height of the first chamber, orthogonally to the plane defined by the micro-grid.
Dependencies are inferred from the claim text.