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  • CsI(Tl) Scintillator Crystals
  • CsI(Tl) Scintillator Crystals
  • CsI(Tl) Scintillator Crystals
  • CsI(Tl) Scintillator Crystals
  • CsI(Tl) Scintillator Crystals
  • CsI(Tl) Scintillator Crystals
  • CsI(Tl) Scintillator Crystals
  • CsI(Tl) Scintillator Crystals

CsI(Tl) Scintillator Crystals

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Basic Properties:

Density(g/cm3) 4.51 Melting Point (K) 894
Cleavage Plane None Hardness(Mohs) 2
Hygroscopic Slightly Refractive Index at Emission Peak 1.79
Emission Peak Wavelength (nm) 550 Lower Wavelength Cutoff (nm) 320
Decay Time (ns) 1000 Light Yield (% of NaI(Tl) ) 45

 


Thallium-activated Cesium Iodide or CsI(Tl) crystals are among the brightest scintillator materials. Its emission peak sits at 550nm within the broad emission spectrum of 350-700nm, which nicely matches with photodiode readout components. Of the essential part, it generates a light yield four times higher than that of BGO, exhibiting an unrivaled brightness of 54 photons/Kev. CsI(Tl) is well suited for detecting particles that pack massive charges because its decay time is variant to the ionization capacity of a particle.  It is possible to shrink the dimension of the detector without a high-voltage power source and implement a magnetic field when a scintillator-photodiode pair is allowed. Furthermore, CsI (Tl) has a larger cross-section of the gamma-radiation photoabsorption. 

It is robust and has excellent mechanical properties because it has no cleavage plane, contributing to its reliable strength under various conditions. CsI(Tl) can be utilized in medical applications such as jaw and head scanning, security X-radiation inspection, well-logging, space research, etc. CsI (Tl) is also immune to thermal and mechanical shock. However, it is worth noting that CsI(Tl) is a slow scintillator, which limits its counting rate.

Hangzhou Shalom EO offers the CsI(Tl) blanks, polished crystals, encapsulated scintillators, and CsI(Tl) arrays, CsI(Tl) array +PD assemblies, and 2-dimensional arrays upon customer's request. Our CsI scintillation crystals and CsI arrays feature excellent radiation hardness, high light output, and reliable robustness. Our CsI(Tl) crystals could be applied in diverse fields, including nuclear radiation detection, high energy physics, security X-radiation scanning machines, Industrial inspection, and medical equipment of Computerized Tomographic (CT) Scanning. This page features our standard CsI(Tl) crystal materials, while Low Afterglow CsI(Tl) Scintillator Crystals are also available. You could click on the bold text to learn more.
CsI(Tl) Scintillator Arrays

CsI(Tl) Scintillator Arrays

  • High mechanical hardness
  • Peak emission wavelength well matching with Si photodiode readout
  • Linear Arrays of 1x8, 1x16, 1x32, 1x64, 1x128…pixels
  • 2-Dimensional Arrays of 6×10, 12×18, 24×36... pixels
  • Minimum pixel or crystal element size: 0.3mmx0.3mm
  • Custom Afterglow
  • CsI(Tl) Scintillation Crystals also available in Shalom EO
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Customized Scintillation Screens

Customized Scintillation Screens

  • For high spatial resolutions application
  • Minimum 0.05mm for free-standing screens
  • Minimum 0.01mm for screens with Fused Silica (FS) substrates
  • Aluminum Coating Available
  • Scintillation Materials including YAG(Ce), GAGG(Ce), LuAG(Ce), LYSO(Ce), YAP(Ce)  and CsI(Tl)
  • Applications: Detection of proton beams, Electron beams, Soft X-rays, UV light, VUV, and XUV radiation
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