公开(公告)号：US20240142659A1

公开(公告)日：2024-05-02

申请号：US18506441

申请日：2023-11-10

Applicant: Rapiscan Systems, Inc.

Inventor： Edward James Morton

IPC: G01V5/22

CPC classification number: G01V5/232 ,  G01V5/224

Abstract: 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.

公开(公告)号：US20240134083A1

公开(公告)日：2024-04-25

申请号：US18544934

申请日：2023-12-19

Applicant: Rapiscan Holdings, Inc.

Inventor： Emmanuel St-Aubin ,  Philippe Desjeans-Gauthier ,  Ola El Bakry ,  Simon Archambault ,  William Awad

IPC: G01V5/22 ,  G01N23/04 ,  G01N23/087 ,  G01N23/10

CPC classification number: G01V5/224 ,  G01N23/04 ,  G01N23/087 ,  G01N23/10 ,  G01N2223/04 ,  G01N2223/1016 ,  G01N2223/206 ,  G01N2223/3035 ,  G01N2223/3307 ,  G01N2223/3308 ,  G01N2223/41 ,  G01N2223/424 ,  G01N2223/5015 ,  G01N2223/639 ,  G01N2223/643

Abstract: A method of determining at least one x-ray scanning system geometric property includes the steps of positioning a calibration device inside a scanning chamber of the scanning device, the chamber being intersected by at least one fan beam of x-rays during a scanning operation, measuring a distance between the calibration device and at least one inner wall of the chamber, scanning the calibration device to produce an image of the calibration device, identifying pixels representing the a geometric feature of the calibration device in the image, determining a position and orientation of the pixels representing the geometric feature in the image and, determining a scanning system property based on the position and orientation of the pixels representing the geometric feature in the image. The position and orientation of the feature in the scanning chamber and the x-ray scanning system property may be determined simultaneously.

公开(公告)号：US12061309B2

公开(公告)日：2024-08-13

申请号：US18150269

申请日：2023-01-05

Applicant: Rapiscan Systems, Inc.

Inventor： Edward James Morton

IPC: G01V5/00 ,  G01V5/22

CPC classification number: G01V5/232 ,  G01V5/224

Abstract: A drive-through scanning system comprises a radiation generating means arranged to generate radiation at two different energy levels and direct it towards a scanning volume, detection means arranged to detect the radiation after it has passed through the scanning volume, and control means arranged to identify a part of a vehicle within the scanning volume, to allocate the part of the vehicle to one of a plurality of categories, and to control the radiation generating means and to select one or more of the energy levels depending on the category to which the part of the vehicle is allocated.

公开(公告)号：US11971371B2

公开(公告)日：2024-04-30

申请号：US17623462

申请日：2020-06-16

Applicant: THE NOTTINGHAM TRENT UNIVERSITY

Inventor： Paul Evans

IPC: G01N23/087 ,  G01N23/083 ,  G01N23/20 ,  G01N23/20008 ,  G01N23/205 ,  G01N23/2055 ,  G01V5/22 ,  G01V5/222 ,  G01V5/226 ,  G21K1/02

CPC classification number: G01N23/20083 ,  G01N23/083 ,  G01N23/087 ,  G01N23/20 ,  G01N23/20008 ,  G01N23/205 ,  G01N23/2055 ,  G01V5/22 ,  G01V5/222 ,  G01V5/224 ,  G01V5/226 ,  G01V5/232 ,  G21K1/02 ,  G21K1/025 ,  G01N2223/04 ,  G01N2223/045 ,  G01N2223/056 ,  G01N2223/316 ,  G01N2223/401

Abstract: A sample inspection system contains a source of electromagnetic radiation and an apparatus that includes a beam former, a collimator and an energy resolving detector. The beam former is adapted to receive electromagnetic radiation from the source to provide a polygonal shell beam formed of at least three walls of electromagnetic radiation. The collimator has a plurality of channels adapted to receive diffracted or scattered radiation at an angle. The energy resolving detector is arranged to detect radiation diffracted or scattered by a sample upon incidence of the polygonal shell beam onto the sample and transmitted by the collimator.