Patent ID: 8971485
Filing Date: 2015-03-03
Classification: G01V

Abstract:
1. A drive-through scanning system comprising a radiation generating means arranged to generate radiation at two different energy levels, wherein the radiation generating means comprises a first radiation source adapted to operate at a first energy level and a second radiation source adapted to operate at a second energy level, and wherein the radiation generating means is arranged to direct the radiation towards a scanning volume, detection means arranged to detect the radiation after it has passed through the scanning volume, and control means arranged, during a single pass of a vehicle through said drive-through scanning system, to identify a part of the vehicle within the scanning volume, to allocate the part of the vehicle to one of a plurality of categories, including a human occupied category and a cargo category, and to control the radiation generating means by activating the first radiation source when the human occupied category part of the vehicle is identified proximate to the scanning volume and by turning off the first radiation source and turning on the second radiation source when the cargo category part of the vehicle is identified within the scanning volume, wherein the first energy level is less than the second energy level.