1592953020000 1312632483000 term-28132 1616541268583 1312632518000 1616290496387 adlib fitz-online adlib-term-28132 754d2206-82df-34aa-8713-6c861001ecf7 2 1 scope note Use for a 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. K.KT.AFU.ALO.DOI.BIQ.ARI.ALO 1 code K.KT.AFU.ALO.DOI.BIQ.ARI.ALO 1 geophysical diffraction tomography reference term-28131 adlib-term-28131 dafdbebb-074d-362b-a137-ff2de9893cbf electronic imaging geophysical diffraction tomography term