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26 November 2019

An X-ray television inspection system is a special X-ray device that allows for examination of the internal structure without the need to open it. X-ray television systems are widely used for inspection of personal belongings at airports, train stations, metro stations, etc. Currently, there are many types of introscopy, but the most popular is the use of X-rays due to its convenience and relative simplicity. In this case, the so-called X-ray structural analysis is carried out – due to the diffraction scattering of radiation, a projection of the internal structure of the object is created.

What types of X-ray television inspection systems are there

There are many classifications of X-ray television systems. They differ in size and purpose of use, the number of X-ray generators:

  • For inspection of baggage and carry-on baggage – the most common type of installation. They are small in size, with one or two X-ray generators depending on the design features of the model;
  • For inspection of large baggage and pallets – the most powerful X-ray television installation, penetrates any density of the object, has many additional functions;
  • For inspection of cars – have greater power compared to the X-ray television installation of baggage. Such installations have a high throughput;
  • Mobile X-ray television inspection installation – the installation is placed in a vehicle, this is a mobile type of inspection system. Convenient for off-site events.

Operating principle

Baggage or other inspected object moves along the conveyor and, having entered the tunnel of the installation, is irradiated by an X-ray tube from a certain angle: from above, below or from the side based on the design features of the device. Depending on the thickness and material of the object, some of the radiation energy is lost. The residual energy is registered by special detectors and converted into electrical signals, which are processed in the processor unit. The denser the baggage, the less radiation reaches the detectors. Ultimately, the X-ray television unit generates a projection of the inspected object, which reflects its internal structure. The thicker the object, the darker it appears in the final image.