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Technical Paper: Ground penetrating abilities of a new coherent radio wave and microwave imaging spectrometer

G C Stove, M J Robinson, G D C Stove, and A Odell, Adrock; J McManus, Department of Earth Sciences, University of St Andrews. This paper was first published in GE’s Decmeber 2012 issue.

The early use of synthetic aperture radar (SAR) and light detection and ranging (Lidar) systems from aircraft and space shuttles revealed the ability of the signals to penetrate the ground surface. Atomic dielectric resonance (ADR) technology was developed as an improvement over SAR and ground penetrating radar (GPR) to achieve deeper penetration of the Earth’s subsurface through the creation and use of a novel type of coherent beam.

When pulsed electromagnetic radio waves pass through a material, they generate measurable responses in terms of energy, frequency, and phase relationships. A deployment of the ADR equipment in a field study of a measured section of Dinantian sediments in a disused quarry at Cults, Fife in Scotland, has confirmed the ability of the method to distinguish the lithologic type and their respective thickness ranging from limestones through sandstones, siltstones, seatearths, and coals. Borehole data were used to corroborate the ADR imaging spectrometer.

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