Non-invasive stationary system for three-dimensional imaging of density fields using periodic flux modulation of compton-scattered gammas

摘要

A three-dimensional image-generating device includes a radiation source, a modulating unit and a radiation detector. All these components may either be stationary or movable. The radiation source is configured to irradiate an object with mono-energetic gamma rays. The modulating unit is configured to encode the single-scattered gamma fluxes scattered from the object as the gamma fluxes travels to the detector. The modulating unit, in conjunction with the Compton scattering process, is configured to enable the identification of the spatial origin of the single-scattered gamma fluxes as they pass through the modulating unit enroute to the detector. The radiation detector and the computer-processor of the detected data are configured to identify local gamma fluxes scattered from various locations within the object. The three-dimensional distribution of local single-scattered gamma fluxes is converted to a three-dimensional mass distribution within the inspected object.