Double source double energy straight-line type safety inspection CT apparatus and inspection method thereof

Abstract

The invention discloses a two-source two-energy linear security inspection CT device and a detection method thereof, wherein a ray generator and a data collector are connected with a control and image processing system, the ray generator comprises a high energy ray generator and a low energy ray generator, a high energy data collector and a low energy data collector are arranged correspondingly with the high energy ray generator and the low energy ray generator, the high energy ray generator and the low energy ray generator are horizontally arranged at the side surface of an object transmitter, which rays are cornered of 90 degrees. The invention can effectively recognize the matters of similar densities and different atom numbers, can quickly and accurately recognize suspected matters as well as obtain the sectional image and the three-dimension image of the suspected region of the object. The two-source two-energy linear security inspection CT device has simple structure and low production cost. The invention adopts reconstruction and fusion methods to analyze data and can effectively recognize the dangerous materials of objects.

Description

technical field [0001] The invention relates to a safety detection device, in particular to a dual-source dual-energy linear security inspection CT device and a detection method thereof. Background technique [0002] Security inspection is an important safety measure in public places such as civil aviation, railways, docks, stations, etc. With the rapid development of economy, the efficiency of security inspection has also been improved. Due to its high degree of automation, security inspection devices are more and more widely used. application. [0003] In the prior art, the safety inspection equipment used in airports, railways, and road transportation is usually based on X-ray perspective imaging. On the one hand, perspective imaging cannot solve the problem of overlapping object images in the direction of the rays; on the other hand, the identification of suspicious objects It is done by analyzing and processing the gray level and image outline of the transmission image...

AI Technical Summary

Problems solved by technology

However, the scanning path of this device is a linear scan with a finite length, which is equivalent to a CT scan with a limited angle. The reconstruction of the object to be detected is an approximate reconstruction, and the quality of the reconstructed image will directly affect the identification of suspicious objects; , due to the use of single-energy X-rays, substances with similar densities but different atomic numbers cannot be effectively distinguished

Images