Tesaurus d'Art i Arquitectura Getty Institute 0000-00-00 2024-01-24 15:40:44 en geophysical diffraction tomography300261934diffraction tomography, geophysicalGDTtomography, geophysical diffraction Technique used to create images of objects, structures, or other features located underground at relatively shallow depths, by bouncing sound waves off the features from several different positions, collecting and processing the signals to get a number of partial views, then focusing and combining these partial views to create a complete image; developed by Alan J. Witten between 1984 and 1987. tomografia de difracció geofísica tomografía de difracción geofísica 2026-03-30 21:02:39