Our company has successfully developed and produced CT security inspection machine

Release time:

2023-12-06

Our company has successfully developed and produced CT security inspection machine

The perspective image of the channel X-ray security inspection machine is the projection of the object perpendicular to the X-ray plane. During the security inspection, there is still limited spatial resolution and it is unable to distinguish the substances stacked in the complex background.

X-ray computed tomography (CT) technology is an advanced non-destructive detection and evaluation technology. It can obtain the size, shape, material and density of the inspected object by multi angle projection perspective scanning of the target object and using the three-dimensional reconstruction algorithm. Therefore, it is widely used in the fields of medical treatment, industry and explosive detection. CT scanning fixes the ray source and detector at both ends of the slip ring, and realizes multi angle scanning of the central target object through the rotation of the slip ring. The early CT technology is restricted by the backward reconstruction algorithm, which can only scan a fault information when the object remains stationary, greatly prolonging the detection time. However, spiral CT scanning technology was born at the end of the 20th century, which allows the object to move forward while the slip ring rotates, greatly improving the scanning efficiency.

CT technology was first applied in the medical field. CT in the industrial field did not begin to be gradually studied and applied until the 1970s, while CT in the field of security inspection was born in the 1990s, mainly for the detection of explosives and drugs. The characteristic information of explosives and drugs is stored in the database of security check Ctrl in advance. During the scanning of items, the security check CT compares the measured characteristic information of substances with the characteristic information in the database. If the comparison is successful, a dangerous goods alarm will be issued, which realizes the intelligent analysis and alarm function.

Compared with medical CT and industrial CT, the main features of security CT are:

The types of tested objects are complex, most of which are small objects, and low-energy ray sources are used;

In terms of structure, the scanning mode of object translation, ray source and detector rotation is adopted, and the scanning speed is required to be high

Compared with the traditional X-ray security inspection machine, the main features of security CT are:

It is unnecessary to open the box during the inspection to realize the rapid and three-dimensional imaging inspection of luggage;

The display content is rich, which can determine the thickness of the material and effectively identify hidden and superimposed objects;

Can accurately identify explosives and drugs

After nearly 30 years of development, security CT has been widely used in airports and customs. Due to the wide variety of objects to be inspected, the security CT will focus on identifying the massive objects to be inspected according to the image quality and density analysis formed by scanning. In addition, security CT rotary scanning and three-dimensional imaging can effectively distinguish the material density and effective atomic number, position, reduce the false recognition rate, and have obvious advantages in the detection of explosives and drugs, which can make up for the shortcomings of the existing security inspection machines.

With advanced data analysis technology, precise neural network structure, and the combination of image reserve of over one million samples and security inspection equipment, our company has formed an intelligent upgrade, and further created a "new mode of smart security inspection", serving the public, making the world safer and life healthier.

This week, our company made an emergency shipment of 50 security inspection machines for Tianjin railway project

security inspection machine

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