NaI(Tl) Scintillators

Manufacture and supply of high quality scintillation crystals and pixelated arrays

Thallium doped Sodium Iodide Scintillation Crystals

We offer high quality NaI(Tl) scintillation crystals of various shapes and sizes as well as pixelated arrays. We have full capability to cut, shape, polish and coat the crystals as well as couple with silicone photodiodes in order to meet your specific requirements.

Thallium doped Sodium Iodide - NaI(Tl)

NaI(Tl) - Thallium doped Sodium Iodide is the most commonly used scintillation crystal. NaI(Tl) is one of the brightest scintillators available surpassed only by our GAGG(Ce) scintillator. NaI(Tl) has a high level of optical output and marginal self-absorption of scintillation light.

NaI(Tl) is highly hygroscopic. Contact with water and humidity should be avoided and encapsulation (container) is required.

NaI(Tl) scintillators have the following features:

High light output
Good density
Marginal self-absorption of scintillation light
Have an optical output largely independent of temperature
Good radiation hardness
Optical output well matched to most commonly used PMTs

Typical applications for NaI(Tl) scintillators include:

Nuclear spectroscopy
Nuclear medicine - SPECT, X-ray, CT, PET and RIA
Nuclear physics
High energy physics
Environmental monitoring
Security – cargo scanning, isotope identification, x-ray scanners
Dose rate monitors

NaI(Tl) based scintillation detectors

Specifications:

Parameter	Value
Density (g/cm3)	3.67
Effective atomic number	56
Maximum emission wavelength (nm)	415
Radiation length (cm)	2.6
Light yield (photons/KeV)	38
Decay time (ns)	250
Thermal expansion coefficient (℃-1)	4.74x10-6
Melting Point (°K)	924
Hardness (Mohs)	2
Scintillation afterglow (100ms)	TBA
Hygroscopic	Yes

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Distributors

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