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Proceedings Paper

Application of a lidar-type gamma-ray tomography approach for detection and identification of buried plastic landmines
Author(s): Tanja N. Dreischuh; Ljuan L. Gurdev; Dimitar V. Stoyanov; Christo N. Protochristov; Orlin I. Vankov
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Paper Abstract

The efficiency is studied of some applications of a recently developed lidar-type gamma-ray tomography approach for non-destructive evaluation of dense media. The approach consists in time-to-range resolved detection of the Compton returns from the probed object (irradiated by annihilation gamma-photon sensing beams) and data processing based on a lidar-type equation and intended for determination of the extinction and backscattering profiles along the line of sight. The concrete purpose of the work is to reveal by statistical modeling the capabilities, under Poisson noise conditions, of investigating underground layers and detecting low-contrast ingredients such as plastic landmines in soil. The results from simulations show that the method is capable of finding and identifying down to 5 % density-contrast ingredients in soil, at depths to 20 cm, with spatial resolution of 1 to 10 mm, for measurement time of 10 to 1000 s and activity of the gamma-ray source of 50 - 300 mCi. So, the method could be successfully used for examination of ground for landmines.

Paper Details

Date Published: 5 March 2007
PDF: 5 pages
Proc. SPIE 6604, 14th International School on Quantum Electronics: Laser Physics and Applications, 660420 (5 March 2007); doi: 10.1117/12.727122
Show Author Affiliations
Tanja N. Dreischuh, Institute of Electronics (Bulgaria)
Ljuan L. Gurdev, Institute of Electronics (Bulgaria)
Dimitar V. Stoyanov, Institute of Electronics (Bulgaria)
Christo N. Protochristov, Institute of Nuclear Research and Nuclear Energy (Bulgaria)
Orlin I. Vankov, Institute of Electronics (Bulgaria)

Published in SPIE Proceedings Vol. 6604:
14th International School on Quantum Electronics: Laser Physics and Applications
Peter A. Atanasov; Tanja N. Dreischuh; Sanka V. Gateva; Lubomir M. Kovachev, Editor(s)

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