Computed tomography system

Abstract

The invention relates to a computed tomography system. The computed tomography system comprises a drum, wherein a ray generator and a detector are arranged on the inner wall of the drum; a conveying belt which penetrates through the drum in the front-back direction is arranged in the drum; a rotating shaft of the conveying belt is connected with a first motor; a detected object is placed on the conveying belt; optoelectronic switches are arranged on two sides of the conveying belt; the outer side of the drum is in sleeve connection with a sliding ring and a belt; one side of the sliding ring is connected with a carbon brush; a wireless data transmitting and receiving device is arranged on the top of the drum and is in communication connection with a ray generator and a detector; the wireless data transmitting and receiving device is connected with a first computer; one end of the belt is connected with a second motor; and the second motor is connected with a servo controller. The drum is matched with the conveying belt to detect the detected object at multiple angles, the accuracy of judgment to the detected object is improved, the detecting speed is increased, and requirements of various airports, railway stations and bus stations can be met.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a computer tomography system. Background technique [0002] With the progress of computer technology, helical scanning and image reconstruction technology, the technology related to computer tomography system is also developing continuously; the application of multi-layer helical scanning technology combined with dual-energy detection technology can not only detect the density of substances but also detect the effective atomic number of substances , to be able to make qualitative judgments on substances; especially in today's period when terrorist activities occur one after another, doing a good job in safety testing cannot be neglected, and the development of new products needs to be solved urgently. [0003] At present, there is no company in China that produces security inspection systems based on multi-layer helical scanning technology. Airports, railway stations an...

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Problems solved by technology

[0003] At present, there is no company in China that produces security inspection systems based on multi-layer helical scanning technology. Airports, railway stations and bus stations are still using dual-energy security inspection machines based on line scanning. This type of security inspection machine has great defects, such as: cannot Accurately detect sheet bombs, liquid bombs and some new explosives, and the image is still displayed on a two-dimensional plane. It is still difficult for the operator to make a more accurate judgment, and it is necessary to open the package for inspection if necessary; As the number of passengers increases year by year, this inspection method will inevitably cause missed inspections, false inspections, and affect the speed of inspections. Whether there are contraband hidden in the package does not require subtle inspection like medical CT and industrial CT. Therefore, it is not necessary to change the thickness of the collected layer when detecting the package. It is only necessary to design a fixed number of detectors during design. It is only necessary to obtain an image with a fixed thickness and a fixed number of layers, so its complexity is simpler than that of medical CT and industrial CT

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