Self-contained mobile inspection system and method

• US 7,720,195 B2
• Filed: 01/07/2009
• Issued: 05/18/2010
• Est. Priority Date: 07/23/2002
• Status: Expired due to Fees

• Current Assignee: Rapiscan Systems Incorporated (OSI Systems Incorporated)
• Original Assignee: Rapiscan Security Products USA Incorporated (OSI Systems Incorporated)
• Inventors: Kotowski, Andreas F., Allman, Bryan
• Primary Examiner(s): Kiknadze; Irakli
• Application Number:
  US12/349,534
• Publication Number:
  US 20090202037A1
• Time in Patent Office: 496 Days
• Field of Search: 378/57, 378/58, 378/102, 378/147, 378/160, 378/205
• US Class Current: 378/57
• CPC Class Codes: G01V 5/20 Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
• CPC Class Codes: G01V 5/222 measuring scattered radiation
• 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 inspection methods and systems of the present invention are mobile, rapidly deployable, and capable of scanning a wide variety of receptacles cost-effectively and accurately on uneven surfaces. The present invention is directed toward a portable inspection system for generating an image representation of target objects using a radiation source, comprising a mobile vehicle, a detector array physically attached to a movable boom having a proximal end and a distal end. The proximal end is physically attached to the vehicle. The invention also comprises at least one source of radiation. The radiation source is fixedly attached to the distal end of the boom, wherein the image is generated by introducing the target objects in between the radiation source and the detector array, exposing the objects to radiation, and detecting radiation.

Claims

1. A portable inspection system for generating an image representation of a target object using a radiation source, comprising:

a movable boom comprising at least a first and second portion, wherein the first portion is vertical and physically attached to a platform;

a detector array physically attached to the second portion of said movable boom; and

at least one source of radiation wherein said radiation source is located on said platform, wherein said image is generated by introducing the target object in between the radiation source and the detector array, exposing said objects to radiation, and detecting radiation; and

a collimator integrated into said first vertical portion of the movable boom wherein the first vertical portion is positioned between the radiation source and the detector arrays and the first vertical portion maintains the radiation source and the detector array in alignment.

2. The system of claim 1 further comprising a hydraulic or cable system to move the boom.

3. The system of claim 1 further comprising at least one sensor to determine when the target object is positioned between the radiation source and the detector array.

4. The system of claim 3 wherein the sensor, upon being activated by movement of the target object, transmits a signal to activate said radiation source.

5. The system of claim 1 wherein the second portion of the movable boom comprises a first arm attached to the first vertical portion, and a telescopic arm physically attached to the first arm.

6. The system of claim 5 wherein the boom has a first configuration and a second configuration.

7. The system of claim 6 wherein, in said first configuration, the first arm and telescopic arm are positioned in substantial parallel alignment with said platform.

8. The system of claim 6 wherein, in said second configuration, the first arm and telescopic arm are positioned to align in a range from 90 degrees to 100 degrees with said platform.

9. The system of claim 1 wherein the radiation source is aligned with the detector system.

10. The system of claim 9 wherein the radiation source is aligned with the detector system using an optical triangulation system.

11. The system of claim 1 wherein the detectors are angled at substantially 90 degrees relative to a focal point of said radiation source.

12. A portable inspection system for generating an image representation of a target object using a radiation source, comprising:

a radiation source mounted on a movable platform;

a boom comprising a first vertical portion having a first end attached to said movable platform and a second end, a first horizontal portion having a first end attached to the second end of said first vertical portion and a second end, and a second vertical portion having a first end attached to the second end of the first horizontal portion and a second end, wherein said first horizontal portion extends in a first horizontal direction;

a detector array physically attached to the first horizontal portion and second vertical portion of said boom;

a counterbalancing weight attached to the second end of the first vertical portion and extending horizontally in a direction opposite to said first horizontal direction; and

a collimator integrated into said first vertical portion of the boom wherein the collimator is positioned between the radiation source and the detector array and the first vertical portion maintains the radiation source and the detector array in alignment, wherein said image is generated by introducing the target object in between the radiation source and the detector array, exposing said objects to radiation, and detecting radiation.

13. The system of claim 12 further comprising at least one sensor to determine when the target object is positioned between the radiation source and the detector array.

14. The system of claim 13 wherein the sensor, upon being activated by movement of the target object, transmits a signal to activate said radiation source.

15. The system of claim 12 wherein the radiation source is aligned with the detector system.

16. The system of claim 12 wherein the radiation source is aligned with the detector system using an optical triangulation system.

17. The system of claim 12 wherein the radiation source generates an X-ray beam having a fan angle of approximately 50 degrees.