Mobile cantilever door-type container inspection system

• US 7,663,109 B2
• Filed: 03/12/2008
• Issued: 02/16/2010
• Est. Priority Date: 12/14/2006
• Status: Active Grant

• Current Assignee: Nuctech Company Limited (Tsinghua Tongfang Co., Ltd.), Tsinghua University
• Original Assignee: Nuctech Company Limited (Tsinghua Tongfang Co., Ltd.), Tsinghua University
• Inventors: Han, Yanjun, Gu, Jingyu, Yang, Guang, Jiang, Nan, Peng, Hua, Li, Yuanjing, Sun, Shangmin, Chen, Zhiqiang, Hu, Bin, Kang, Kejun, Miao, Qitian, Liang, Jinning, Wang, Xuewu, Song, Quanwei, Liang, Zhizhong, Wu, Yucheng
• Primary Examiner(s): Porta; David P
• Assistant Examiner(s): BOOSALIS, FANI POLYZOS
• Application Number:
  US11/955,711
• Publication Number:
  US 20080156992A1
• Time in Patent Office: 706 Days
• Field of Search: 250/359.1, 250/358.1, 250/360.1, 250/306, 250/336.1, 378/57, 378/198
• US Class Current: 250/359.1
• 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

Abstract

The present invention discloses a mobile cantilever door-type container inspection system, in the art of radiation scanning imaging inspection technology. The system according to the present invention comprises a moveable scanning apparatus formed by a scanning frame and a remote control device, wherein the scanning frame comprises a radiation source and some detectors, wherein the radiation source or an apparatus cabin wherein the radiation source is disposed is connected with an L-shaped cantilever structure to form a door-type scanning frame, wherein beneath the radiation source or the apparatus cabin wherein the radiation source is disposed are provided with rollers that can reciprocatingly move on rails and are controlled by drive means. The detectors are disposed in a cross beam and a vertical beam of the cantilever structure of the door-type scanning frame. Rays of the radiation source are right in alignment with rows of detectors in the cantilever structure. The container truck to be inspected can pass through the door-like frame formed by the door-type scanning frame. Due to the cantilever structure, the inspection system is advantageous in stable operation, good-quality images, and high reliability.

Claims

1. A mobile cantilever door-type container inspecting system, comprising:

a moveable scanning apparatus formed by a scanning frame and a remote control device, wherein the scanning frame comprises a radiation source, or an apparatus cabin wherein the radiation source is disposed, and detectors, the scanning frame forms a door frame through which a container truck to be inspected can pass,

beneath the radiation source, or the apparatus cabin wherein the radiation source is disposed, are engaging means that are reciprocatingly movable on at least one rail and are controlled by drive means,

wherein the radiation source, or the apparatus cabin wherein the radiation source is disposed, is connected with a cantilever structure to form a door-type scanning frame, and the detector that is disposed in a cross beam and a vertical beam of the cantilever structure of the door-type scanning frame can receive the rays from the radiation source (1).

2. The mobile cantilever door-type container inspecting system according to claim 1, wherein the engaging mean beneath the radiation source, or the apparatus cabin wherein the radiation source is disposed, reciprocatingly moves on two rails.

3. The mobile cantilever door-type container inspecting system according to claim 2, wherein said engaging means comprises rollers (6).

4. The mobile cantilever door-type container inspecting system according to claim 2, wherein said drive means comprises one of an electrical machine drive means and a hydraulic motor drive means.

5. The mobile cantilever door-type container inspecting system according to claim 2, wherein said radiation source utilizes a rectilinear electron accelerator or isotope.

6. The mobile cantilever door-type container inspecting system according to claim 2, wherein said cantilever structure is L-shaped.

7. The mobile cantilever door-type container inspecting system according to claim 1, wherein the middle portion of the cross beam of the door-type scanning frame is supported by a vertical support.

8. The cantilever door-type container inspecting system according to claim 7, wherein the engaging means provided at the radiation source is disposed, and said vertical support have the same spanning distance as that of the two rails and match said rails.

9. The mobile cantilever door-type container inspecting system according to claim 8, wherein a collimator is disposed in the vertical support.

10. The mobile cantilever door-type container inspecting system according to claim 8, wherein said drive means comprises one of an electrical machine drive means and a hydraulic motor drive means.

11. The mobile cantilever door-type container inspecting system according to claim 7, wherein said engaging means comprises rollers.

12. The mobile cantilever door-type container inspecting system according to claim 8, wherein said radiation source utilizes a rectilinear electron accelerator or isotope.

13. The mobile cantilever door-type container inspecting system according to claim 8, wherein said engaging means comprises rollers.

14. The mobile cantilever door-type container inspecting system according to claim 7, wherein said drive means comprises one of an electrical machine drive means and a hydraulic motor drive means.

15. The mobile cantilever door-type container inspecting system according to claim 7, wherein said radiation source utilizes a rectilinear electron accelerator or isotope.

16. The mobile cantilever door-type container inspecting system according to claim 7, wherein said cantilever structure is L-shaped.

17. The mobile cantilever door-type container inspecting system according to claim 1, wherein said engaging means comprise rollers.

18. The mobile cantilever door-type container inspecting system according to claim 1, wherein said drive means comprises one of an electrical machine drive means and a hydraulic motor drive means.

19. The mobile cantilever door-type container inspecting system according to claim 1, wherein said radiation source utilizes a rectilinear electron accelerator or isotope.

20. The mobile cantilever door-type container inspecting system according to claim 1, wherein said cantilever structure is L-shaped.