X-ray high-absorptivity detection system and image imaging method

An X-ray high-absorptivity detection system, comprising:

• a light source;
• a fluorescent layer;
• a first visible light sensor arranged on an upper surface of the fluorescent layer;
• a second visible light sensor arranged on a lower surface of the fluorescent layer;
• a first image acquisition device for obtaining an image signal based on a visible photon signal, which is connected to the first visible light sensor;
• a second image acquisition device for obtaining an image signal based on a visible photon signal, which is connected to the second visible light sensor;
• and
• a processor for performing an addition operation on image signals, which is electrically connected to both the first image acquisition device and the second image acquisition device;
• the light source is configured to emit an X-ray towards the fluorescent layer,
• wherein the X-ray reaches the fluorescent layer after passing through the first visible light sensor;
• the fluorescent layer comprises a material for converting the X-ray into visible light, and the material for converting the X-ray into visible light generates first visible photons moving towards the first visible light sensor and second visible photons moving towards the second visible light sensor under an excitation of X photons;
• the first image acquisition device is configured to obtain a first image signal based on a first visible photon signal acquired by the first visible light sensor;
• the second image acquisition device is configured to obtain a second image signal based on a second visible photon signal acquired by the second visible light sensor;
• and
• the processor is configured to perform an addition operation on the first image signal and the second image signal to obtain an X-ray image signal.