13632941820

CN

13632941820

Industry News

What is the dual energy and single energy of the security inspection machine?

2019-10-15 14:56:59 Announcer:Shenzhen Fangji Infinite Technology Co., Ltd.
614

 Do you know the difference between dual-energy and single-energy security machines? So, do you know what the dual-energy and single-energy inspection of security machines specifically refer to? Today Fangji Infinite Security Machine Manufacturers will briefly introduce to you:


  Security Inspection System According to the ray source and detector, X-ray security inspection system can be divided into single energy security inspection system and dual energy security inspection system. The so-called single energy system means that the x-rays emitted by the ray source have a single energy, and the single energy ray source emits fan-shaped single energy rays. The penetrated object reaches the detector and is absorbed by the detector, and then converted into a digital signal input to the PC. After a series of data processing, it is finally displayed on the computer screen of the security inspection machine as a grayscale image.
  The security personnel determine whether dangerous goods are present based on the shape and outline of the image. Because a single security inspection machine ray system does not have the ability to distinguish substances, it can only judge dangerous goods by shape, which has high requirements for the experience of safety inspectors. According to the number of radiation sources used, dual-energy security inspection system can be further divided into true dual energy system and pseudo dual energy system. The so-called true dual-energy system means that the security inspection machine has two single-energy ray sources, which respectively emit high-energy rays and low-energy rays, and two sets of detectors at the receiving end, which respectively receive the attenuated high-energy rays and low-energy rays.

The so-called pseudo dual energy system means that the security inspection machine has only one ray source, which is a multi-energy ray source with a certain spectral width. X-rays pass through the object and reach the detector, which is first received by a low-energy detector to obtain low-energy data. Then, the low-energy part is filtered through a copper low-energy filter, and the remaining high-energy part is received by the next-stage high-energy detector to obtain high-energy data. The dual-energy system inputs high-low energy signals into a PC. After a series of data processing and attribute calculations related to the material's equivalent atomic number, a pseudo-color image with certain substance categories is finally displayed on the computer screen. Significantly reduced security checks. The judgment of the staff is difficult. The dual-energy security inspection system is more accurate than the single-energy security inspection system and can classify substances. It is the most commonly used security system today.

After reading the introduction of Fangji Infinite Security Inspection Machine Manufacturer, do you have a deeper understanding of the dual function and single function of the security inspection machine?

Share:
new NewsHot News
<Detailed description of the operation process of the channel safety detectorDetailed description of the operation process of the channel safety detector An Analysis of the Reasons for the Differences in the Manufacturers of Security Inspection Machines>An Analysis of the Reasons for the Differences in the Manufacturers of Security Inspection Machines