US 7,352,843 B2
Combined mobile container inspection system with low target
Haifeng Hu, Beijing (China); Yucheng Wu, Beijing (China); Shangmin Sun, Beijing (China); Zhiqiang Chen, Beijing (China); Guang Yang, Beijing (China); Zhengyu Bai, Beijing (China); Rongxuan Liu, Beijing (China); Hongliang Yang, Beijing (China); Jianjun Su, Beijing (China); Jiantao Wang, Beijing (China); Yanjun Han, Beijing (China); Bin Hu, Beijing (China); Quanwei Song, Beijing (China); Nan Jiang, Beijing (China); Hua Peng, Beijing (China); Jianmin Li, Beijing (China); Wanquan Shen, Beijing (China); and Zhizhong Liang, Beijing (China)
Assigned to Nuctech Company Limited, Beijing (China); and Tsinghua University, Beijing (China)
Appl. No. 10/580,870
PCT Filed Dec. 02, 2004, PCT No. PCT/CN2004/001402
§ 371(c)(1), (2), (4) Date May 23, 2006,
PCT Pub. No. WO2005/057196, PCT Pub. Date Jun. 23, 2005.
Claims priority of application No. 2003 1 0117326 (CN), filed on Dec. 10, 2003.
Prior Publication US 2007/0110215 A1, May 17, 2007
Int. Cl. G01N 23/04 (2006.01)
U.S. Cl. 378—57  [378/198] 10 Claims
OG exemplary drawing
 
1. A combined mobile container inspection system, comprising:
an X-ray radiation source;
a chassis;
a rotatable deck provided at an end of an upper surface of said chassis and being rotatable with respect to said chassis, provided with a parallelogram bracket formed by a hingedly-connected four-bar linkage mechanism, wherein a cross link of the parallelogram bracket extends to form a horizontal cross arm with detectors, an end of said horizontal cross arm being connected with a vertical upright arm that has detectors and can be vertical or parallel to said horizontal cross arm, wherein an auxiliary bracket of the vertical upright arm is provided on the upper surface of said chassis corresponding to an end of the rotatable deck when the vertical upright arm is supported parallel to the horizontal cross arm; and
a sliding deck provided at the rear end of the rotatable deck and movable upwardly and downwardly, said sliding deck is provided, in turn, with the radiation source, the X-ray generated therefrom being in the face of the detectors provided in the horizontal cross arm and vertical upright arm, with a calibrator, and with a collimator,
wherein said sliding deck is comprised, in two parts, of a fixed frame and a sliding frame provided with the radiation source, calibrator and collimator, the fixed frame is fixed to the rotatable deck, both ends of the inner side of the fixed frame are provided with sliding rail, the sliding frame is embeddedly provided on the sliding rail of the fixed frame, and a driving mechanism, which moves the sliding frame upwardly and downwardly, is connected between the fixed frame and the sliding frame.