The present invention consists of a system and a method for a rapid, complete and nonintrusive inspection of vessels without their physical control.

The nonintrusive control method, in accordance with the invention, consists in the relative movement of a vessel, through two scanning frames, in a manner synchronized with the triggering of two penetrating radiation generators and the transmission of the signals generated by the detector matrix towards the subsystem for the acquisition, processing and display of data in order to form and display radiographic images from at least two different perspectives of the scanned vessel.

The scanning system, according to the invention, consists of a support-type mechanical structure, a control center, two scanning frames, two penetrating radiation sources, a vessel towing subsystem, a subsystem for vessel stabilization and a subsystem for the acquisition, processing and display of data.

A method, a system, and an apparatus for scanning an elongate structure. A scanner in a scanning system is moved on a helical path around the elongate structure. The scanner is moved on the helical path around the elongate structure using a helical track system attached to the elongate structure using a translating structure. An x-ray beam is emitted from the scanner while the scanner moves on the helical path. Backscatter is detected from the x-ray beam encountering the elongate structure.

The present disclosure provides systems, apparatuses, and methods for measuring submerged surfaces. Embodiments include a measurement apparatus including a main frame, a source positioned outside a pipe and connected to the main frame, and a detector positioned outside the pipe at a location diametrically opposite the source and connected to the main frame. The source may transmit a first amount of radiation. The detector may receive a second amount of radiation, determine a composition of the pipe based on the first and second amounts of radiation, and send at least one measurement signal. A control canister positioned on the main frame or on a remotely operated vehicle (ROV) attached to the apparatus may receive the at least one measurement signal from the detector and convey the at least one measurement signal to software located topside.

A system for quantifying x-ray backscatter system performance is disclosed. The system includes one or more x-ray backscatter detectors, an x-ray tube, a support, and a plurality of rods mounted on the support and arranged in groups. Each group of rods includes at least two rods having the same width. The system also includes a user interface configured to connect to the x-ray backscatter detectors to receive a backscatter signal from the x-ray backscatter detectors associated with the x-ray tube, where the user interface plots a modulation transfer function representing x-ray backscatter for each rod of the plurality of rods from x-rays transmitted by the x-ray tube.

A method and a system for fast inspecting a vehicle based on a length measuring device, including: when a subject vehicle enters an inspection region, measuring a first length and a second length of the subject vehicle; determining whether the first length and the second length is respectively larger than or equal to a preset second length threshold; if so, determining whether a gap portion of the subject vehicle between a first portion and a second portion of the subject vehicle appears in a beam emitting region formed by a beam of radiation rays emitted by the system for fast inspecting a vehicle; and when the gap portion appears in the beam emitting region, emitting a beam of radiation rays of a first radiation dose to the subject vehicle according to the gap portion, wherein the subject vehicle moves with respect to the system for fast inspecting a vehicle.

A system for quantifying x-ray backscatter system performance is disclosed. The system includes one or more x-ray backscatter detectors, an x-ray tube, a support, and a plurality of rods mounted on the support and arranged in groups. Each group of rods includes at least two rods having the same width. The system also includes a user interface configured to connect to the x-ray backscatter detectors to receive a backscatter signal from the x-ray backscatter detectors associated with the x-ray tube, where the user interface plots a modulation transfer function representing x-ray backscatter for each rod of the plurality of rods from x-rays transmitted by the x-ray tube.

A system for quantifying x-ray backscatter system performance may include a support; a plurality of rods mounted on the support; the rods of the plurality of rods arranged parallel to each other, having generally curved outer surfaces, and being arranged in groups of varying widths, each group of the groups having at least two of the rods of a same width; and a user interface configured to be connected to receive a backscatter signal from an x-ray backscatter detector associated with an x-ray tube, apply a transfer function to generate a transfer curve representing x-ray backscatter for each rod of the plurality of rods from x-rays transmitted by the x-ray tube.

A method and a system for fast inspecting a vehicle based on a length measuring device, including: when a subject vehicle enters an inspection region, measuring a first length and a second length of the subject vehicle; determining whether the first length and the second length is respectively larger than or equal to a preset second length threshold; if so, determining whether a gap portion of the subject vehicle between a first portion and a second portion of the subject vehicle appears in a beam emitting region formed by a beam of radiation rays emitted by the system for fast inspecting a vehicle; and when the gap portion appears in the beam emitting region, emitting a beam of radiation rays of a first radiation dose to the subject vehicle according to the gap portion, wherein the subject vehicle moves with respect to the system for fast inspecting a vehicle.

A method, a system, and an apparatus for scanning an elongate structure. A scanner in a scanning system is moved on a helical path around the elongate structure. The scanner is moved on the helical path around the elongate structure using a helical track system attached to the elongate structure using a translating structure. An x-ray beam is emitted from the scanner while the scanner moves on the helical path. Backscatter is detected from the x-ray beam encountering the elongate structure.

An apparatus and method for quick imaging and inspection of a moving target. The apparatus comprises a passage, a scanning and imaging device (106), a first position sensor (101), a second position sensor (103), and a control unit (105). The control unit (105) powers on an electron induction accelerator in the scanning and imaging device (106) to make the electron induction accelerator enter a standby state when the control unit (105) receives from the first position sensor (101) a detection signal indicating that a moving target (100) enters the passage, and controls a beam emitting time point and a beam emitting mode of the electron induction accelerator to correspondingly inspect different parts of the moving target (100) when the second position sensor (103) detects that different sections pass through a radiation scanning area. The driver and passengers do not need to get off when a traveling vehicle is inspected, the apparatus controls the accelerator to emit ray beams with corresponding energy to perform scanning when the moving target passes through the scanning area, flexible scanning is realized, and inspection time is reduced.