The present invention provides a four-sided scanning system for vehicles that uses a combination of backscatter and transmission based X-ray imaging to achieve material discrimination. In one embodiment, the system is designed as a mobile, drive-through system, which can be folded and stowed in a truck and can be conveniently deployed at any place when required.

The present specification discloses a high speed scanning system for scanning cargo carried by rail. The system uses of a two-dimensional X-ray sensor array with, in one embodiment, a cone-beam X-ray geometry. The pulse rate of X-ray source is modulated based on the speed of the moving cargo to allow a distance travelled by the cargo between X-ray pulses to be equal to the width of the detector, for a single energy source, and to half the width of the detector for a dual energy source. This ensures precise timing between the X-ray exposure and the speed of the passing object, and thus accurate scanning of cargo even at high speeds.

Disclosed herein is an image sensor comprising: a plurality of radiation detectors; a mask with a plurality of radiation transmitting zones and a radiation blocking zone; and an actuator configured to move the plurality of radiation detectors from a first position to a second position and to move the mask from a third position to a fourth position; wherein while the radiation detectors are at the first position and the mask is at the third position and while the radiation detectors are at the second position and the mask is at the fourth position, the radiation blocking zone blocks radiation from a radiation source that would otherwise incident on a dead zone of the image sensor and the radiation transmitting zones allow at least a portion of radiation from the radiation source that would incident on active areas of the image sensor to pass through.

A method for inspecting at least one vehicle with an inspection system, the inspection system and the at least one vehicle being configured to move relative to one another during an inspection of at least one part, the method including controlling, by a controller, an inspection dose of inspection radiation generated by a radiation source such that, during the inspection of the at least one part of the vehicle by the inspection radiation, the inspection dose remains substantially equal to a predetermined inspection dose, wherein controlling the inspection dose includes the controller obtaining image information representative of a location of the at least one part, and location information representative of a location of the at least one part, wherein the image information is obtained from an image of the vehicle, and the controller controlling the radiation source, based on the obtained information.

A method for inspecting at least one vehicle with an inspection system, the inspection system and the at least one vehicle being configured to move relative to one another during an inspection of at least one part of the vehicle, the method including controlling, by a controller, an inspection dose of inspection radiation generated by a radiation source such that, during the inspection of the at least one part of the vehicle by the inspection radiation, the inspection dose remains substantially equal to a predetermined inspection dose, wherein controlling the inspection dose includes the controller obtaining information representative of a speed of the relative movement of the system and the vehicle during the inspection of the at least one part of the vehicle, and the controller controlling the radiation source, based on the obtained information.

The present invention consists of a method and a scanning system for nonintrusive inspection, through radiography of inspected aircrafts from at least two different perspectives. The complete scanning system for nonintrusive inspection of aircrafts according to the invention is a mobile nonintrusive scanning ensemble, installed on a vehicle chassis with a superstructure, on which a deformable parallelogram profile and a mechanical boom are mounted with a penetrating radiation source at one end. A detector line assembly is installed on the ground. A hinged boom is fitted with an array of detectors and positioned opposite a relocatable radiation source. The scanning system for nonintrusive inspection include a mobile tugging device to tow the inspected aircraft at constant speed through the scanning frames. A mobile control center is placed outside the exclusion area a.

Disclosed herein is a system comprising: a radiation source; a marker; a first image sensor; and a second image sensor; wherein the first image sensor is configured to capture images of the marker; wherein the second image sensor is configured to move between a first position and a second position; wherein the second image sensor is configured to capture a first set of images of portions of a scene at the first position and to capture a second set of images of portions of the scene at the second position; wherein the second image sensor and the radiation source are configured to collectively rotate relative to the scene; wherein the second image sensor is configured to form an image of the scene by stitching an image selected from the first set and an image selected from the second set based on the images of the marker.

Disclosed herein is an image sensor comprising: a first radiation detector and a second radiation detector, respectively comprising a planar surface configured to receive radiation from a radiation source; wherein the planar surface of the first radiation detector and the planar surface of the second radiation detector are not parallel; wherein the first radiation detector and the second radiation detector are configured to move to a plurality of positions relative to the radiation source; wherein the image sensor is configured to capture, by using the first radiation detector and the second radiation detector and with the radiation, images of portions of a scene at the positions respectively, and configured to form an image of the scene by stitching the images of the portions.

Scanning systems may include a stator, a rotor supporting at least one radiation source and at least one radiation detector rotatable with the rotor, and a motivator operatively connected to the rotor. The stator, the rotor, the at least one radiation source, and the at least one radiation detector may be located within a housing. A conveyor system may extend through the housing and the rotor. A shielding system including a series of independently movable energy shields sized, shaped, and positioned to at least partially occlude a pathway along which the conveyor system extends may extend from an entrance to the housing, through the rotor, to an exit from the housing. A control system may be configured to cause the shielding system to automatically and dynamically move individual energy shields in response to advancement of one or more objects supported on the conveyor system.

A human body security inspection apparatus, a method of operating the same, and an associated filter device are disclosed. The human body security inspection apparatus includes a radiation beam exit configured for emitting a radiation beam; a beam guiding box configured for guiding the radiation beam; and a filter device configured between the radiation beam exit and the beam guiding box. The filter device includes a housing and a filter cage having a central axis. The filter cage is formed by arranging two or more pairs of filtering sheets, which are made of different materials and/or have different thicknesses, in an encircling way. The filter cage is rotatable about its central axis such that at least one pair of filtering sheets is capable of filtering the radiation beam to adjust an outputted dosage of the radiation beam of the human body security inspection apparatus.