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CsI

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CsI

TI:CsI ​​crystal is one of the brightest scintillators as known. With its emission peak is at about 550nm, which suited well for SiPD or SiPM readout. TI: CsI crystal shows high light output (60000ph/MeV). It has a wide range of applications in security detection, neutrino detection, neutrino detection, gamma rays.

Pure CsI shows crystal a very fast decay rate (~10ns), and the emission peak of its spectrum is around 310nm, but its light output at room temperature is very low. The light output of pure CsI crystal at a low temperature of 77K is as high as 100,000 ph/Mev, which makes pure CsI the most attractive scintillator in the field of cryogenic detectors.

Features Applications
  • High light output
  • Short decay time
  • Low melting point
  • Good optical properties
  • High photoelectric conversion efficiency
  • Security check
  • Detection of neutrinos
  • γ-ray detection
  • XCT
  • PET
  • Position sensitive detector
  • Geological exploration
  • Industrial CT camera

 

MATERIAL PROPERTIES

MaterialsCsICsI:TICsI:Na
Density (g/cm3)4.534.514.51
Melting point (℃)894894621
Hardness (Mho)222
HygroscopicitySlightlySlightlySlightly
CleavageNoNoNo
refractive Index1.951.81.8

SCINTILLATOR PROPERTIES

MaterialsCsICsI:TICsI:Na
Radiation length(cm)1.861.862.43
Decay constant(ns)16900630
Emission peak(nm)315550550
Light output (Ph/MeV) (300K)10006000041000
Afterglow(@75ms)/0.5-5.00.5-5.0

CsI scintillator crystal spectra

CsI decay time curve
CsI decay time curve
X-ray radioluminscence spectra
X-ray radioluminscence spectra
CsI scintillator crystal A-41 X-Ray 30KV 5mA cooling RL
CsI scintillator crystal A-41 X-Ray 30KV 5mA cooling RL

CsI:TI scintillator crystal spectra

PMT:R1306 ; Reflector Teflon(0.8mm); Radiation source Cs137 HV:650V Light Output:59000 ph/MeV; Energy resolution:7.3%-1PMT:R1306 ; Reflector Teflon(0.8mm); Radiation source Cs137 HV:650V Light Output:59000 ph/MeV; Energy resolution:7.3%-2PMT:R1306 ; Reflector Teflon(0.8mm); Radiation source Cs137 HV:650V Light Output:59000 ph/MeV; Energy resolution:7.3%-3
PMT:R1306 ; Reflector Teflon(0.8mm); Radiation source Cs137 HV:650V Light Output:59000 ph/MeV; Energy resolution:7.3%

Related application(s) with CsI:

X-ray detection γ-ray detection
Medical CT PET

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