■■■ Nal(Tl) Introduction NaI (TI) is the most extensively used material of all the available scintillators. It is grown by host material sodium iodide doped with appropriate percentage of thallium. The main emission wavelength is 415nm, which well matched with the working wavelength of photomultiplier tubes (PMTs). It has very high luminescence efficiency and exhibits no si ificant self absorption of the scintillation light and has good resolution ability to X-ray and y-ray. Main Advantages • High light output. • The emission wavelength (415nm) match well with the working wavelength of photomultiplier tubes (PMTs). • No si ificant self absorption of scintillation light. • Available in single crystal or polycrystalline rms in a wide variety of sizes and geometries. • Widely used r radiation detection: in nuclear medicine, r environmental monitoring, in nuclear physics, aerial survey, well logging and in many other applications. Main Properties: Density [g/cm 3 1 3.67 Melting Point [K] 924 Thermal Expansion Coefficient [C- 1 ] 47.7 X lQ-G Cleavage Plane <100> Hardness (Mho) 2 Hygroscopic yes Wavelength of Emission Max. [nmJ 415 Reactive dex @Emission Max 1.85 Primary Decay Time [ns] 250 Light Yield [photonseVy] 38 Temperature Coefficient of Light Yield -3%C-' CASTECH offers • Cylinder-shaped crystals: 11mmX200mm �68mmX300mm Special-shaped series: igonal prism, tetragonal prism, hexagonal prism and so on. War: lmmX3mm �l70mmX20mm Side window: 37mmX120mm �50mmX 150mm • Fast delivery (within 1 month) . Tel: +86 591 83710533 E-mail: [email protected]http://www.castech.com
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■■■
Nal(Tl)
Introduction
NaI (TI) is the most extensively used material of all the available scintillators. It is grown by host material sodium iodide doped with appropriate percentage of thallium. The main emission wavelength is 415nm, which well matched with the working wavelength of photomultiplier tubes (PMTs). It has very high luminescence efficiency and exhibits no significant self absorption of the scintillation light and has good resolution ability to X-ray and y-ray.
Main Advantages
• High light output.
• The emission wavelength (415nm) match well with the working wavelength of photomultiplier tubes
(PMTs).
• No significant self absorption of scintillation light.
• Available in single crystal or polycrystalline forms in a wide variety of sizes and geometries.
• Widely used for radiation detection: in nuclear medicine, for environmental monitoring, in nuclearphysics, aerial survey, well logging and in many other applications.
Main Properties:
Density [g/cm3 1 3.67
Melting Point [K] 924
Thermal Expansion Coefficient [C-1 ] 47.7 X lQ-G
Cleavage Plane <100>
Hardness (Mho) 2
Hygroscopic yes
Wavelength of Emission Max. [ nmJ 415
Refractive Index @Emission Max 1.85
Primary Decay Time [ ns] 250
Light Yield [photons/ke Vy] 38
Temperature Coefficient of Light Yield -3%C-'
CASTECH offers
• Cylinder-shaped crystals: cp 11mm X 200mm �cp68mm X 300mm
Special-shaped series: trigonal prism, tetragonal prism, hexagonal prism and so on.