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 system for inspecting a moving person comprises an x-ray source, disposed in a fixed position with respect to the moving person, to generate one or more scanning x-ray beams. Each of the one or more x-ray beams being obliquely incident on either a front of the moving person, a rear of the moving person, or both. The system further comprises one or more backscatter detectors arranged to detect radiation scattered from the moving person, and to produce a detection signal therefrom. The system further comprises a processor and a memory with computer code instructions stored thereon. The memory is operatively coupled to the processor such that, when executed by the processor, the computer code instructions cause the system to produce a backscatter image based on the detection signal. When two or more x-ray beams are implemented, the two or more x-ray beams are temporarily interleaved to prevent crosstalk.

A baggage screening module including a baggage screening device; and a transportable container for housing the baggage screening device. The baggage screening device is operable within the container to screen baggage, and the baggage screening module is moveable as a unit to a place of use.

A method includes receiving distributed sensing information on one or more characteristics associated with a subject from sensors distributed between a starting location spaced from a resolution location and the resolution location, the resolution location including a targeted screening area, the characteristics being obtained from the sensors observing a plurality of candidate subjects including the subject; determining, based on the information on the characteristics, which category of a plurality of categories is to be associated with the subject for a targeted screening process to be performed in which respective categories correspond to different thresholds applied in the targeted screening process; and electronically communicating information for the category associated with the subject to an electronic device, to direct the subject to a location of the targeted screening area which corresponds to the category, for performing the targeted screening process of the subject corresponding to a threshold associated with the category.

A system identifying a source of radiation is provided. The system includes a radiation source detector and a radiation source identifier. The radiation source detector receives measurements of radiation; for one or more sources, generates a detection metric indicating whether that source is present in the measurements; and evaluates the detection metrics to detect whether a source is present in the measurements. When the presence of a source in the measurements is detected, the radiation source identifier for one or more sources, generates an identification metric indicating whether that source is present in the measurements; generates a null-hypothesis metric indicating whether no source is present in the measurements; evaluates the one or more identification metrics and the null-hypothesis metric to identify the source, if any, that is present in the measurements.

According to an embodiment, an X-ray imaging device includes an irradiator, an exposure switch device, and a control device. The irradiator irradiates a subject placed on a bed with X-rays. The exposure switch device receives an operation of an operator related to X-ray irradiation. The control device controls the X-ray irradiation based on the X-rays. The exposure switch device includes a switch and an output. The switch is set on the basis of a position of the operator and detects the operation of the operator. The output outputs an operation signal based on the operation of the operator to the control device when the operation of the operator has been detected by the switch.

Systems and methods for automated security inspection and routing of in-transit objects are described. In one embodiment, a plurality of security screening devices are provided, each operable to output screening data of an in-transit object, including a first screening device located in a sealed environment of a vehicle for transporting the object towards a conveying system, including one or more measuring devices operable to measure screening parameters of the object when located in the sealed environment, and a second screening device in combination with conveying and routing components of the conveying system used to transport said objects from an ingress point through a conveyor junction to reach the second screening device. A control unit is assigned to the conveyor junction, wherein the control unit is configured to receive security data assigned on the basis of the screening data from the first screening device to the object upstream of the conveyor junction, and in response, to determine and set a routing direction on the basis of the assigned security data, whereby the object is directed downstream to a screening route for further screening by the second screening device, or to a loading route for objects cleared for loading. Other embodiments are also described and claimed.

An x-ray scanning system includes an x-ray source that produces a collimated fan beam of incident x-ray radiation. The system also includes a chopper wheel that can be irradiated by the collimated fan beam. The chopper wheel is oriented with a wheel plane containing the chopper wheel substantially non-perpendicular relative to a beam plane containing the collimated fan beam. In various embodiments, a disk chopper wheel's effective thickness is increased, allowing x-ray scanning with end point energies of hundreds of keV using relatively thinner, lighter, and less costly chopper wheel disks. Backscatter detectors can be mounted to an exterior surface of a vehicle housing the x-ray source, and slits in the disk chopper wheel can be tapered for more uniform target irradiation.

A borehole muon detector for muon radiography or geotomography is provided, the borehole muon detector including a substantially cylindrical housing, which defines a bore, a pair of end caps, each end cap sealing an end of the cylindrical housing and a plurality of sealed drift tubes which are longitudinally disposed in the bore of the housing to form a bundle of drift tubes, wherein each sealed drift tube comprises: a centrally located anode wire disposed on a longitudinal axis; an inner surface which is coated with a cathode coating, the cathode coating divided into a first cathode pad and a second cathode pad by a Vernier pattern; and a timer in electrical communication with the anode wire for measuring a drift time. A system and a method are also provided.

A dosimeter assembly being placed within an inner volume of a test article for evaluating an image produced by an x-ray computed tomography (CT) system. The dosimeter assembly includes: a dosimeter having a display, a dosimeter shelf that supports the dosimeter; and an alignment bracket that positions the dosimeter on the dosimeter shelf. The dosimeter shelf is operable to be mounted within the x-ray computed tomography system test article, and the display of the dosimeter is viewable through a dosimeter window which is disposed at a front end of the x-ray computed tomography system test article, wherein the dosimeter assembly is accessible through an access panel directly beneath the dosimeter assembly, the access panel being an opening which is disposed on a base of the x-ray computer tomography system test article. The dosimeter is operably connected to a connection interface which is configured to exchange communication with an external device.