Passenger car radiation imaging detection system

A radiation imaging and detection system technology, applied in the field of car radiation imaging detection system, can solve the problems of large installation site, complex system structure, low detection pass rate, etc., and achieve the effect of preventing terrorist attacks, broad application prospects, and small size

Inactive Publication Date: 2009-01-21
TSINGHUA UNIV
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Problems solved by technology

[0004] The CT system described in the patent ZL99110839.6 can obtain projections in any direction and computed tomography images at any position of the object to be inspected, which greatly improves the detection capability of the equipment, but the system also has the following defects. For the inspection of large objects such as cars and vans, the entire system has a complex mechanism, high requirements for radiation protection, low detection pass rate, and a large installation site, which is difficult to meet certain occasions that require high detection efficiency, small footprint and simple protection.

Method used

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  • Passenger car radiation imaging detection system
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Embodiment Construction

[0028] The present invention includes: a detection device module, a ground sensing coil, an image processing subsystem and a control subsystem, wherein,

[0029] The detection device module includes: radiation source and its shielding container (1), irradiation room and front collimator (2), array detector and its matching front circuit (3), rear collimator (4), translation drag moving mechanism (5),

[0030] Among them, the ray source and its shielding container (1), the irradiation room and the front collimator (2), the array detector and its matching front circuit (3) and the rear collimator (4) together constitute a detection component, forming A horizontal detection channel, the radiation source and its shielding container (1), the irradiation chamber and the front collimator (2) are located at the bottom of the detection channel, and the array detector and its matching front circuit (3) and rear collimator ( 4) Located on the top of the detection channel, or on the cont...

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Abstract

The invention relates top a car radiation imaging and detecting system, which belongs to the nuclear technology application field. The invention is characterized by comprising a ray source, a front and a back collimators, an array detector, other detecting components and a translational pulling mechanism, wherein the translational pulling mechanism is arranged between the ray source and the array detector, which forms a detecting channel for a measured foreign body to get in and get out and finish scanning in uniform speed with the ray source, the array detector and other detecting components. The car radiation imaging and detecting system is used to get vertical perspective image of cars or microbus or double perspective image in vertical or horizontal direction. The car radiation imaging and detecting system is used to do nondestructive detection for large-scale objects such as cars, microbus and the like.

Description

technical field [0001] The invention relates to a car radiation imaging detection system. It belongs to the field of nuclear technology application. Background technique [0002] In the prior art, radiation imaging systems for large objects such as containers and trucks, including fixed and mobile systems, basically aim at obtaining horizontally projected images of the object to be inspected. This type of system meets the needs of inspecting containers to a certain extent; [0003] However, for cars and vans, since the mass distribution of the inspected object is in a flat shape, the mass thickness of the inspected object along the ray direction in the top view projection view is much smaller than that of the horizontal projection perspective image, so if the vertical direction scanning detection increases the penetration possible, and reduce the image overlap phenomenon of the object to be inspected, making image identification more convenient, so vertical perspective imag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/04
Inventor 张颜民裘伟东
Owner TSINGHUA UNIV
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