Scintillation Crystals

A scintillator is a material that exhibits scintillation, the property of luminescence when excited by ionizing radiation. Luminescent materials, when struck by an incoming particle, absorb its energy and scintillate (i.e. re-emit the absorbed energy in the form of light).
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These materials are usually used as radiation detectors, particle detectors, new energy resource exploration, and gas exploration. CRT computer monitors and television sets are also included in applications of scintillation crystals

Innovative scintillation crystal materials from Stanford Advanced Materials are provided to the Medical, Geophysical, Security, Industrial, and Physics markets. Products include CdWO4, YAG (Ce), YAP (Ce), BGO, CsI (Tl), CdWO4, and LYSO (Ce), etc.

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Scintillation Crystals
The perfect scintillator should be dense, bright and fast.
 
  • Dense means high density and high atomic number ≳ 5 g/cm3, which increases the probability of a gamma-ray interaction.
    The denser the scintillator, the more efficient it is at stopping gamma rays.
  • Bright means more visible light is produced per unit energy absorbed  ≳ 30,000ph/MeV, which increases signal, reduces the statistical uncertainty in position and energy.
    The brighter the scintillator, the easier it is to pinpoint where in the scintillator the gamma-ray was stopped.
  • Fast means the scintillator creates the visible light in a short pulse ≲ 100 ns, which enables faster data acquisition rates, reduces the statistical uncertainty in position.

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