Strontium Iodide (Eu) - SrI2(Eu) Scintillator Crystal

Strontium Iodide (Eu) - SrI2(Eu) - scintillation crystal

Strontium Iodide (Eu) - SrI2(Eu) - scintillation crystals offers extremely high optical outputs and enable detection of gamma-rays over a very broad range of energies and with with spectral resolutions of c.4% (FWHM).

SrI2(Eu) scintillator crystal strengths:

  • Extremely high light output
  • Excellent performance at both high and low energies and linearity
  • Inherent low background radiation

SrI2(Eu) scintillator crystals - issues to be aware of:

  • Hygroscopic with encapsulation needed
  • Crystals only available in relatively small sizes

SrI2(Eu) scintillator crystals - SrI2(Eu) - are useful and proven scintillators for applications such as:

  • Hand-held radiation detection instruments
  • Medical, industrial and environmental

SrI2(Eu) Scintillation Crystals - Optical Properties

Property Units Value
Wavelength (Max. Emission) nm 435
Wavelength Range nm TBA
Decay Times ns 1200
Light Yield photons/keV 115
Photoelectron Yield % of NaI(Tl) 130
Afterglow % TBA @ 6ms
Radiation Length cm 1.95
Optical Transmission µm TBA
Transmittance % TBA
Refractive Index 2.16
Reflection Loss/Surface % 2.05 @ 435nm
Neutron Capture Cross-section barns TBA

SrI2(Eu) Scintillation Crystals - Mechanical Properties

Property Units Value
Chemical Formula SrI2(Eu)
Density g/cm³ 4.55
Atomic Number (Effective) 49
Melting Point ºK 538
Linear Expansion Coeff. C⁻¹ TBA x 10⁻⁶
Thermal Conductivity Wm⁻¹K⁻¹ TBA
Crystal Structure Orthothombic
Hardness Mho TBA
Hygroscopic Yes
Solubility g/100gH₂0 TBA

Further Reading/Publications

Sizes

Property Value
Diameters 25 mm max.
Lengths 50 mm max.

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