NaI(TI) Scintillation Crystals

Thallium doped sodium iodide crystal (NaI:TI) is a high performance scintillation crystal. These crystals are grown from sodium iodide (NaI) as a base material with an appropriate concentration of the activator thallium (TI) and have a maximum luminous wavelength of 415 nm, which is well matched to the photocathode of common photomultiplier tubes. Nal:TI scintillators are colourless, transparent crystals with no absorption of their own light. Because of its high density and high effective atomic number, it has a strong absorption capacity and high energy resolution for X-rays and γ rays, so it occupies an important position in radiation detection, it is an important basic material in the detection instruments of geology, mining, petroleum, coal, medical, security, industrial CT and environmental testing.

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