Encrypted radiation imaging system based on random thickness liquid mask

Abstract

The invention discloses an encrypted radiation imaging system based on a random thickness liquid mask, which comprises an X-ray source, an object to be detected, a liquid metal mask, a mask internal thickness control array and an X-ray detector. According to the invention, the thickness of the liquid mask is randomly adjusted through the mask internal thickness control array, the X-ray passing through the mask is attenuated randomly, sensitive information carried in X-ray imaging is encrypted, the sensitive information of a to-be-detected object is effectively protected, physical shielding encryption measures are adopted for energy and position information of emitted particles, the proposed security check technology encrypts information carried by the emergent X-rays from the physical field, the risk that privacy information is leaked is avoided, any privacy information of the to-be-checked article is not exposed, whether the to-be-checked article contains contraband articles or not is conveniently confirmed by adopting a template comparison method, and the security check is carried out on the basis of protecting the sensitive information of the checked article.

Description

technical field [0001] The invention relates to the technical field of information and security, in particular to an encrypted radiation imaging system based on a random-thickness liquid mask. Background technique [0002] For some important places in the country, such as military secret places, the protection of security issues is extremely important. Dangerous items are strictly prohibited in these places. The list of prohibited items is listed by the supervisor, and most of the current security inspection equipment is based on X-ray imaging. principle, to identify and judge; [0003] However, to inspect the equipment through the imaging principle of X-rays, due to the strong perspective of X-rays, privacy will be violated during the inspection process, and this phenomenon will not be accepted in some special cases, so the current inspection equipment cannot To check the safety of items without infringing on privacy, therefore, it is necessary to provide a security inspec...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an encrypted radiation imaging system based on a random-thickness liquid mask, which can effectively solve the problem in the background technology that because X-rays have strong perspective, privacy will be violated during the inspection process, and this phenomenon occurs in some It will not be accepted under special circumstances, so the current inspection equipment cannot verify the safety of items without violating privacy

Images