Advantage：
1.Wavelength 550nm for PD
2.Excellence performance for afterglow and brightness in low energy x ray
3.Low cost
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CsI(Tl) Array
- CsI(Tl) Cesium Iodine doping thallium is the most typical alkali halide scintillation crystal which wavelength is 550nm, It's best matchable for PD, SiPM etc. CsI(Tl) has high density, High Z, No cleavage plane, excellent detection effiency, it's widely used in high energy physics, Nuclear detector, Space detection, security inspection,SPECT and container checking etc.
Properties:
Density（g/cm3）
4.51
Melting Point (K)
894
Thermal Expansion Coefficient (K-1)
54 x 10-6
Cleavage Plane
None
Hardness (Mho)
2
Hygroscopic
Slightly
Wavelength of Emission Maximum (nm)
550
Lower Wavelength Cutoff(nm)
320
Refractive Index at Emission Maximum
1.79
Primary Decay Time (ns)
1000
Afterglow (after 30ms) [%]
0.5 – 0.8
Light Yield (photons/keV)
52- 56
Photoelectron Yield [% of NaI(Tl)] (for γ-rays)
45
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