Relocatable x-ray imaging system and method for inspecting commercial vehicles and cargo containers

• US 7,991,113 B2
• Filed: 06/24/2010
• Issued: 08/02/2011
• Est. Priority Date: 06/20/2003
• Status: Expired due to Fees

• Current Assignee: Rapiscan Systems Incorporated (OSI Systems Incorporated)
• Original Assignee: Rapiscan Security Products USA Incorporated (OSI Systems Incorporated)
• Inventors: Carver, James, Kotowski, Andreas F.
• Primary Examiner(s): Ho; Allen C.
• Application Number:
  US12/822,183
• Publication Number:
  US 20100329420A1
• Time in Patent Office: 404 Days
• Field of Search: 378/57, 378/196, 378/197, 378/198
• US Class Current: 378/57
• CPC Class Codes: G01N 23/04 and forming images of the material
• CPC Class Codes: G01N 23/083 the radiation being X-rays
• CPC Class Codes: G01N 23/087 using polyenergetic X-rays
• CPC Class Codes: G01N 23/10 the material being confined in a container, e.g. in a luggage X-ray scanners
• CPC Class Codes: G01V 5/20 Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
• CPC Class Codes: G01V 5/22 Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
• CPC Class Codes: G01V 5/224 Multiple energy techniques using one type of radiation, e.g. X-rays of different energies
• CPC Class Codes: G01V 5/232 having relative motion between the source, detector and object other than by conveyor G01V5/226 takes precedence

Abstract

The present specification discloses a readily relocatable X-ray imaging system for inspecting the contents of vehicles and containers, and a method for using the same. The system is relatively small in size, and is used for inspecting commercial vehicles, cargo containers, and other large objects. The X-ray imaging system has a substantially arch-shaped collapsible frame with an X-ray source and detectors disposed thereon. The frame is preferably collapsible via a plurality of hinges and may be deployed into an X-ray imaging position, and collapsed into a transport position.

Claims

1. A method of deploying a security inspection system from a delivery vehicle to an inspection site, the inspection system including a frame having first and second leg sections pivotally connected to opposite ends of a support beam section, comprising the steps of:

moving the frame into an X-ray imaging position via a deployment mechanism;

inclining a bed section of the delivery vehicle until a base portion of at least one of the first and second leg sections contacts a surface of the inspection site or an object located on a surface of the inspection site; and

detaching the frame from the bed section of the delivery vehicle such that the frame stands in a substantially upright position on the surface of the inspection site.

2. The method of claim 1 wherein the step of moving the frame into an X-ray imaging position comprises moving the first and second leg sections away from one another such that the support beam section pivots into a locked position in which the support beam section is substantially perpendicular to the first and second leg sections.

3. The method of claim 1 wherein the inclining step comprises inclining the bed section until a wheel located on the base portion of at least one of the first and second leg sections engages a track secured to the surface of the inspection site.

4. The method of claim 1 wherein the inclining step comprises inclining the bed section until a plurality of tires located on base portions of the first and second leg sections contact into contact the surface of the inspection site.

5. A method of deploying a security inspection system from a delivery vehicle to an inspection site, the inspection system including a support beam section having a first end and a second end, a first leg section pivotally attached to the first end, and a second leg section pivotally attached to the second end, wherein the support beam section comprises first and second scanner segments pivotally connected to one another, the method comprising the steps of:

activating a deployment mechanism;

moving the first and second leg sections away from one another using the deployment mechanism such that the support beam section pivots into an imaging position in which the first and second scanner segments are locked into place substantially linear to one another, and substantially perpendicular to the first and second leg sections;

inclining a bed section of the delivery vehicle until a base portion of at least one of the first and second leg sections contacts at least one of a surface of the inspection site and an object located on a surface of the inspection site; and

detaching the inspection system from the bed section of the delivery vehicle such that the inspection system comes to rest in a substantially upright position on the surface of the inspection site.

6. The method of claim 5 wherein the inclining step comprises inclining the bed section until a wheel located on the base portion of at least one of the first and second leg sections engages a track secured to the surface of the inspection site.

7. The method of claim 5 wherein the inclining step comprises inclining the bed section until a plurality of tires located on the base portions of the first and second leg sections come into contact with the surface of the inspection site.

8. A method of inspecting an object, comprising the steps of:

deploying an X-ray imaging scanner from a delivery vehicle into an imaging position wherein an inspection area is defined by the scanner and wherein the X-ray imaging scanner comprises a support beam having a first end and a second end, a first leg pivotally attached the first end, and a second leg pivotally attached to the second end;

generating an X-ray beam from the scanner into the inspection area toward an object to be imaged;

detecting the X-ray beam after the X-ray beam passes through the object;

producing an output signal representative of the object and contents thereof;

converting the output signal into a visual image of the object and contents thereof;

moving the scanner relative to the object to image the object wherein the step of moving the scanner comprises self-propelling the scanner relative to the object; and

regulating a speed and/or alignment with a light source, a light sensor, and a processor.

9. The method of claim 8 wherein the support beam comprises first and second scanner segments pivotally connected to one another.

10. The method of claim 9 further comprising the step of moving the first and second leg sections away from one another using the deployment mechanism such that the support beam section pivots into an imaging position in which the first and second scanner segments are locked into place substantially linear to one another, and substantially perpendicular to the first and second leg sections.

11. The method of claim 10 further comprising the step of inclining a bed section of the delivery vehicle until a base portion of at least one of the first and second leg sections contacts at least one of a surface of the inspection site and an object located on the surface of the inspection site.

12. The method of claim 8 further comprising the step of detaching the X-ray imaging scanner from the bed section of the delivery vehicle such that the X-ray imaging scanner comes to rest in a substantially upright position on the surface of the inspection site.

13. The method of claim 12 wherein the inclining step comprises inclining the bed section until a wheel located on the base portion of at least one of the first and second leg sections engages a track secured to a surface of the inspection site.

14. The method of claim 12 wherein the inclining step comprises inclining the bed section until a plurality of tires located on the base portions of the first and second leg sections come into contact with a surface of the inspection site.