Accession Number : ADA182227

Title :   Landmine Detection by Scatter Radiation Radiography.

Descriptive Note : Final rept.,

Corporate Author : ARMY MILITARY PERSONNEL CENTER ALEXANDRIA VA

Personal Author(s) : Campbell,John G

PDF Url : ADA182227

Report Date : 02 Jul 1987

Pagination or Media Count : 564

Abstract : The application of scatter radiation radiography to the detection of buried nonmetallic antitank landmines is examined. A combination of calculations and measurements is used to address the problem. The primary calculation tool is a Monte Carlo photon transport code. Measurements are made with an x-ray source, sodium iodide detector, and soil box positioning system. The soil box containing a model of a nonmetallic antitank mine is moved beneath the x-ray source to simulate both the forward motion of a vehicle transporting the detection system and raster of the beam to search a path of sufficient width to allow safe passage. Measurements are used to validate the calculation results for a small detector and produce images of buried mines. The calculations are extended to large area detectors which are required to provide path searches of approximately three widths. Environmental parameters, such as height sensitivity, soil density and moisture content, and inhomogeneities are examined in both calculations and measurements. Calculations are used to suggest mine detection mechanisms and to optimize geometric parameters and x-ray beam quality. Power requirements are also addressed. Keywords: Landmine; Mine warfare; Mine detection; Monte Carlo; Scattering; Imaging; Radiation transport; Detector response; X ray; Spectra; Backscatter; Nonmetallic mine; Theses.

Descriptors :   *MINE DETECTION, *ANTITANK MINES, *RADIOGRAPHY, BACKSCATTERING, COMPUTATIONS, DETECTORS, ENVIRONMENTS, HEIGHT, SENSITIVITY, LAND MINES, ANTITANK WEAPONS, BURIED OBJECTS, NONMETALS, RESPONSE, GEOMETRY, IMAGES, MINES(ORDNANCE), AREA SCANNING, MOISTURE CONTENT, POWER, REQUIREMENTS, RADIATIVE TRANSFER, SCATTERING, BOXES, SOILS, WIDTH, DENSITY, MINE WARFARE, MONTE CARLO METHOD, COMPUTATIONS, RATES, IODIDES, SODIUM, POSITION(LOCATION), THESES, X RAYS

Subject Categories : Land Mine Warfare

Distribution Statement : APPROVED FOR PUBLIC RELEASE