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* Welcome To NaI(Tl) Crystal *
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Sodium (Thallium) Iodide

NaI(Tl) scintillator is made from superior sodium (thallium) iodide single crystals by hot forging, which is the key component of scintillation counting tube. The compressive strength of the product is 1.5 times higher than that of original single crystals and the thermal shock resistance is also higher. A series of such products with various specifications is available.

Main Technical Properties:

Density [g/cm³]

3.67

Melting point [k]

924

Hardness (mho)

2

Hygroscopic

yes

Wavelength of emission max. [nm]

415

Refractive index at emission max.

1.85

Primary decay time [ms]

0.23

Afterglow (after 6 ms) [%]

0.3-0.5

Light yield [photons/MeVy]

38x10³

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