Active terahertz human body security inspection system device and adjustment method

Abstract

The invention relates to an active terahertz human body security inspection system device and an adjustment method. The active terahertz human body security inspection system device comprises a target person, a terahertz plane reflector, a terahertz focusing lens, a terahertz detector, an image analysis processing module, an air spraying device, a target automatic sensing device, a baffle, a device shell, a background plate, a terahertz source, a high-speed galvanometer and a terahertz transmission waveguide; terahertz waves radiated by the terahertz source pass through the terahertz coherence elimination-used galvanometer, and then, enter the terahertz transmission waveguide and uniformly irradiate the target person at different angles through a plurality of ports of the terahertz transmission waveguide; the surface of the body of the target person will reflect the terahertz waves which uniformly irradiate the body of the target person; the swing shaft and angle adjustment shaft of the terahertz plane reflector are controlled, so that fast scanning and imaging of the target person can be realized; and a swing angle and a rotation angle can be set according to actual experiment conditions. The device has the advantages of simplicity and easiness in operation; and the method is suitable for microwaves, terahertz waves and far infrared waves.

Description

technical field [0001] The invention relates to an electromagnetic wave imaging technology, in particular to an active terahertz human body security inspection system device and adjustment method. Background technique [0002] Terahertz waves are frequencies between 0.1 and 10 THz (1 THz=10 13 Hz) range of electromagnetic waves. Terahertz wave, like the infrared and microwave on its adjacent sides, can discover new technologies in detection and spot imaging, so as to realize many applications in materials, microelectronics, medical diagnosis, atmospheric and environmental monitoring, biological detection and communication. aspects of application. Terahertz science and technology has become one of the most promising research directions in the 21st century. Moreover, the photon energy of 1 THz is only 4.1 meV. Compared with X-rays, terahertz waves will not cause damage to living tissue cells, so terahertz waves can be applied to security inspections in airports and other p...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the current lack of terahertz imaging devices with low cost, high resolution, large viewing angle and fast imaging speed, and proposes an active terahertz human body security inspection system device and adjustment method, using terahertz source and terahertz The transmission waveguide uniformly illuminates the target person, and uses a terahertz plane mirror, a terahertz focusing mirror, a terahertz detector and an image analysis and processing module. By controlling the swing axis and angle adjustment axis of the terahertz plane mirror, the target Rapid scan imaging of target persons

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