VZJ -- Saintenoy et al. 7 (1): 208 Figure IG7

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FIG. 7. Model geometry used for ground penetrating radar data simulations, where S and R are the transmitter and receiver antennae, ${varepsilon}$ _r are the dielectric permittivities, R is the radius of the external cylinder, and A, B, C, and D are zones of reflection of the electromagnetic wave.