Method for conducting fast and automatic nondestructive testing (NDT) to heroin hidden in human body

A non-destructive testing and heroin technology, which is applied in the field of physical energy dispersive X-ray scattering nuclear detection, can solve the problem of not being able to use continuously for a long time, and achieve the effects of low maintenance cost, strong anti-interference, and rapid detection.

Inactive Publication Date: 2011-07-27
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Problems solved by technology

However, the sensitivity varies greatly with individuals, and it cannot be used continuously for a long time

Method used

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  • Method for conducting fast and automatic nondestructive testing (NDT) to heroin hidden in human body
  • Method for conducting fast and automatic nondestructive testing (NDT) to heroin hidden in human body
  • Method for conducting fast and automatic nondestructive testing (NDT) to heroin hidden in human body

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Embodiment Construction

[0055] The method for carrying out fast automatic non-destructive detection to the hidden heroin in the human body, it comprises the following steps:

[0056] 1) Preparation of testing equipment: such as figure 1 As shown, the detection equipment includes X-ray generator, divergence slit collimator, anti-scatter slit and receiving slit collimator, detector, multi-channel analyzer and computer system; X-ray generator, divergence slit collimator The collimator is located on one side of the sample (such as the left side), and the divergent slit collimator is located between the X-ray generator and the sample; the detector, anti-scatter slit and receiving slit collimator are located on the other side of the sample ( As shown on the right), the anti-scatter slit and receiving slit collimator are located between the sample and the detector; the signal output port of the detector is connected with the signal input port of the multi-channel analyzer by the signal line, and the signal...

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Abstract

The invention relates to a method for detecting heroin hidden in a human body, in particular to a method for conducting fast and automatic nondestructive testing (NDT) to heroin hidden in a human body, which is characterized by comprising the following steps: 1) preparing testing equipment; 2) adopting a human body model with hidden heroin as a sample to detect scattering maps of a detector at different angles, and establishing a standard database of the human body model with hidden heroin; 3) adopting a human body model as a sample to detect scattering maps of the detector at different angles, and establishing the standard database of the human body model; and 4) adopting detected human body as the sample in the step 1), taking the scattering map of a detected target in the step 2) at the same scattering angle as a coherence function map, analyzing signal features of high frequency band to be determined whether the human body contains heroin if the coherence function analysis has a peak value at the high frequency band, otherwise, the heroin is not existed in the human body. The method can fast, accurately detect whether the heroin is hidden in the human body without destruction.

Description

technical field [0001] The present invention relates to the technical field of physics energy dispersive X-ray scattering nuclear detection and the theoretical field of computer digital signal processing, in particular to a method for fast automatic non-destructive detection of hidden heroin in the human body by combining energy dispersive X-ray diffraction with coherence function method. Background technique [0002] Drugs are poisons used by the devil to absorb human souls, and they have become a major public hazard to human beings today. It not only destroys people's will, personality and conscience, seriously endangers health, but also makes people commit crimes, which is an important factor of social instability. In recent years, drug smuggling activities around the world have become increasingly rampant, criminals have cunning and changeable drug trafficking methods, and drug trafficking methods have become increasingly modern and intelligent. In particular, smugglin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/12G06F19/00
Inventor 余道洋张芳李民强钟煜孙柏刘锦淮
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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