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A basic acoustic diffraction experiment for demonstrating the geometrical theory of diffraction

By
B. Barry Narod
B. Barry Narod
Department of Geophysics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada V6T1W5
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Matthew J. Yedlin
Matthew J. Yedlin
Department of Geophysics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada V6T1W5
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Published:
January 01, 2016

Abstract

An apparatus is described in which acoustic diffractions are generated. Such diffractions are recorded in the field when seismic data is collected over a geological area that has many faults and truncated geological structures. The design of the experiment is considered from the point of view of theoretical feasibility and practical implementation. A computer-controlled transceiver is guided on a traverse perpendicular to a model of a rigid half-plane. At each transceiver location an acoustic pulse is emitted, and the scattered acoustic pulse is recorded. Results of this experiment are presented and analyzed from the perspective of Keller’s geometric theory of diffraction. The predicted asymmetry of the diffraction hyperbola is observed in the model data collected.

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Contents

Society of Exploration Geophysicists Geophysics Reprint Series

Seismic Diffraction

Kamil Klem-Musatov
Kamil Klem-Musatov
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Henning Hoeber
Henning Hoeber
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Michael Pelissier
Michael Pelissier
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Tijmen Jan Moser
Tijmen Jan Moser
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Society of Exploration Geophysicists
Volume
30
ISBN electronic:
9781560803188
Publication date:
January 01, 2016

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