&lt;title&gt;Field studies in geophysical diffraction tomography&lt;/title&gt;

Witten, Alan J.; Stevens, Sophie; King, Wendell C.; Ursic, James R.

doi:10.1117/12.139013

Cited by 1 publication

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“…For this reason, Devaney proposed a geophysical imaging procedure, based on the concept of structure determination in holography (Wolf, 1969), that he called geophysical diffraction tomography (GDT). Since this early work of Devaney, GDT has been refined (Witten and Molyneux, 1992), incorporated into field instrumentation (Witten et al, 1992a), and applied to problems such as the location and identification of buried waste (Witten and King, 19901, imaging the skeletal remains of a supergiant sauropod dinosaur (Witten et al, 1992b) and detecting tunnels in the Korean demilitarized zone (Witten, 1991).…”

Section: Geophysical Applications In Archaeologymentioning

confidence: 99%

Geophysical diffraction tomography: New views on the shiqmim prehistoric subterranean village site (israel)

et al. 1995

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Shiqmim is a late prehistoric farming village in the Beersheva river valley in Israel's northern Negev desert dating to the late 5th-early 4th millennia B.C. Along with surface architecture, archaeologists discovered a sequence of large subterranean rooms interconnected by narrow tunnels. This discovery, found in the northern Negev, as well as similar subterranean features and dating back to the same period, has created considerable controversy as to the functions of this innovative architecture. To a large extent, this controversy results from conflicting hypotheses based on the small sample of subterranean Negev architectures. A fundamental task in the resolution of these problems is the location and investigation of similar features within this region. This is not a simple task because these subterranean features can be as much as 7 m deep in hard-packed soil and are usually completely filled with fine sediment as a result of depositional forces acting over the 6 millennium since their abandonment. To help quantify the spatial extent of subterranean features at Shiqmim and identify particularly promising locations for excavation, an emerging geophysical method, known as geophysical diffraction tomography, was applied. This method is based on the propagation of acoustic waves and employs the mathematical concepts of optical holography to reconstruct quantitative, high-resolution images of the subsurface environment. Two geophysical imaging field studies were performed at Shiqmim, and the results of these studies indicate that subterranean architecture is much more pervasive at this site than pre-*

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