Scintillation crystal is a kind of crystal that breaks the kinetic energy of high-energy particle into light energy when it is hit by high-energy particle. Tungsten scintillation detector consists of scintillator (cadmium tungstate crystal), light collection unit, and photoelectric converter.

X ray can be used for medical diagnosis, industrial inspection and material analysis, etc. It is invisible, but when it is irradiated by a fluorescent screen, it will emit fluorescent light, so the doctor sees the human body under X - ray fluoroscopy, and the quality inspector can know that whether the internal quality of the checked object has problems or not. This screen will transform the invisible X light into visible light. These materials, which are excited by X - ray radiation, are called scintillation materials. In addition, scintillation materials can emit fluorescence in other radioactive isotopes decay produces high-energy radiation such as alpha rays and beta rays.

 

  

People have made various rays detector by using the characteristics of scintillation materials, which means that the scintillating material emits fluorescence when the high-energy beam is irradiated on the detector. The stronger the radiation, the stronger the fluorescence. The fluorescence is received and transformed by photoelectric conversion system, then processed by the electronic circuit, finally, it can be displayed in the indicator. So people will say that this detector is the eye of X rays and other high-energy rays. Scintillation detectors based on scintillator are widely used in scientific research, medical treatment, and industrial production, etc. The application of scintillation detectors pay more attention in high energy physics and nuclear medical technology.

 

Because of the excellent performance of tungsten, tungsten scintillation detector has large absorption coefficient of X ray, short radiation length, large radiation hardness, and its luminescence is matched with the spectral sensitivity curve of the semiconductor photodetector. The cadmium tungstate scintillation crystal is a good material for measuring the energy and intensity of radiation for its inherent characteristics of radiation absorption and luminescence. Each scintillation crystal has its own advantages and disadvantages. Materials should be chosen according to specific requirements and application fields. Tungsten scintillation detectors have many advantages, such as high detection efficiency and sensitivity. They are widely used radiation detectors.