Abstract: Systems, methods, and computer readable memory are disclosed for constructing a three-dimensional tomogram using a gravity-fed tomography system. A gravity-fed tomography system may generate a three-dimensional image through a barrier. The system may include a chute. The chute may be configured to receive a three-dimensional object having x-, y- and, z-dimensions. The chute may be configured to be non-perpendicular to a gravitational vector such that gravity facilitates movement of the object through the chute. The system may include one or more sources. The sources may emit electromagnetic radiation toward the object when the object is disposed in the chute. The system may include one or more receivers, which may receive at least a portion of the electromagnetic radiation emitted by the one or more sources.

Abstract: A tomographic system accurately determines characteristics of a specific region within an inhomogeneous dielectric specimen by guiding an electromagnetic field through the inhomogeneous dielectric specimen in a transverse mode. The system may include a source of electromagnetic energy for generating an electromagnetic waveform, and a transmission line for guiding an electric field of the waveform along a prescribed path that defines a series of spatial regions. The transmission line is provided by a pair or array of conductors, the electric field spanning between two or more of the conductors as the electric field propagates along the prescribed path. The conductors may form part of an external non-contact structure which guides and controls the electromagnetic field both spatially and temporally.

Abstract: Methods for determining characteristics of a specific region within an inhomogeneous specimen by guiding propagation of fields through the inhomogeneous specimen is provided herein. Various embodiments include at least one source of electromagnetic energy for generating electromagnetic waveforms, the electromagnetic waveforms comprising electric and magnetic fields propagating along a prescribed path that defines a series of spatial regions through which the fields propagate. In some embodiments the prescribed path includes field modulating elements that determine a rate of field propagation along the prescribed path. Some embodiments include a plurality of conductors for guiding the field propagation through an inhomogeneous specimen in the prescribed path, the fields spanning between two or more of the plurality of conductors as the fields propagate along the prescribed path. In some embodiments the plurality of conductors are external to the inhomogeneous specimen.

Abstract: Systems, methods, and computer readable memory are disclosed for constructing a three-dimensional tomogram using a gravity-fed tomography system. A gravity-fed tomography system may generate a three-dimensional image through a barrier. The system may include a chute. The chute may be configured to receive a three-dimensional object having x-, y- and, z-dimensions. The chute may be configured to be non-perpendicular to a gravitational vector such that gravity facilitates movement of the object through the chute. The system may include one or more sources. The sources may emit electromagnetic radiation toward the object when the object is disposed in the chute. The system may include one or more receivers, which may receive at least a portion of the electromagnetic radiation emitted by the one or more sources.

Abstract: A system for determining characteristics of a specific region within an inhomogeneous dielectric specimen by guiding propagation of electric fields through the inhomogeneous dielectric specimen is provided herein. Various embodiments include at least one source of electromagnetic energy for generating electromagnetic waveforms, the electromagnetic waveforms comprising electric fields propagating along a prescribed path that defines a series of spatial regions through which the electric fields propagate. In some embodiments the prescribed path includes electric field modulating elements that determine a rate of electric field propagation along the prescribed path. Some embodiments include a plurality of conductors for guiding the electric field propagation through an inhomogeneous dielectric specimen in the prescribed path, the electric fields spanning between two or more of the plurality of conductors as the electric fields propagate along the prescribed path.

Abstract: A system for determining characteristics of a specific region within an inhomogeneous dielectric specimen by guiding propagation of electric fields through the inhomogeneous dielectric specimen is provided herein. Various embodiments include at least one source of electromagnetic energy for generating electromagnetic waveforms, the electromagnetic waveforms comprising electric fields propagating along a prescribed path that defines a series of spatial regions through which the electric fields propagate. In some embodiments the prescribed path includes electric field modulating elements that determine a rate of electric field propagation along the prescribed path. Some embodiments include a plurality of conductors for guiding the electric field propagation through an inhomogeneous dielectric specimen in the prescribed path, the electric fields spanning between two or more of the plurality of conductors as the electric fields propagate along the prescribed path.