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  • Bismuth Germanate BGO Scintillator Crystals
  • Bismuth Germanate BGO Scintillator Crystals
  • Bismuth Germanate BGO Scintillator Crystals
  • Bismuth Germanate BGO Scintillator Crystals

Bismuth Germanate BGO Scintillator Crystals

  • Non-hydroscopic and Mechanical Ruggedness
  • High Density and High Radiation Hardness
  • Maximum Size: ɸ 75 mm x 300 mm
  • Single crystals and BGO Arrays available
  • Main applications: Positron emission tomography(PET), High Energy Physics, Nuclear Medicine, Geological Prospecting, and Gamma Pulse Spectroscopy
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Basic Properties:

Density (g/cm3) 7.13 Melting Point (K) 1323
Thermal Expansion Coefficient (C-1 ) 7 x 10-6 Cleavage Plane none
Hardness (Mho) 5 Hygroscopic no
Wavelength of Emission Max. (nm) 480 Lower Wavelength Cutoff (nm) 320
Refractive Index @ Emission Max 2.15 Primary Decay Time (ns) 300
Light Yield (photons/keVγ) 8-10 Photoelectron Yield [% of NaI(Tl)] (for γ-rays) 15 - 20
Temperature Response -1.2%/℃ Neutron Capture Cross-section 1.47b
Afterglow @ 20ms 150ppm

 

Abilities and Specifications:

Growth Method Bridgman Formula Bi4Ge3O12
Maximum Dimension ∅ 75 mm x 300 mm Available Items Single crystal and arrays

Bismuth Germanate or BGO crystal is one of the most widely used scintillation materials of the oxide type. BGO has a high Z, high density scintillation material. Due to the high atomic number of bismuth (83) and the material's high density of 7.13 g/cm3, BGO is a very efficient gamma ray absorber. Given the high Z value of the material, the photo fraction for gamma ray absorption is high, as a result very good peak-to-total ratios are observed. 

Hangzhou Shalom EO offers the custom BGO crystals and BGO arrays products, they are widely used in high-energy physics (scintillators for electromagnetic calorimeters and detecting assemblies of accelerators), spectrometry and radiometry of gamma-radiation, positron tomography.


Applications:

  • Positron emission tomography(PET)
  • High energy physics
  • Nuclear medicine
  • Geological prospecting
  • Gamma pulse spectroscopy
LYSO(Ce) Scintillator Crystals

LYSO(Ce) Scintillator Crystals

  • High Light Output and Short Decay Time
  • High Density and Anti-radiation Hardness
  • Stable Chemical and Physical Properties
  • Maximum Size: ɸ105mm x 200mm
  • LYSO(Ce) Single Crystals and LYSO(Ce) Arrays Available
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BGO Arrays

BGO Arrays

  • Non-hygroscopic and Mechanical ruggedness,
  • Good radiation hardness
  • High density and atomic number, nearly complete absence of afterglow
  • used in multi-layer scintillation arrays 
  • Main applications: High Energy Physics (HEP), Small-sized tomography devices, gamma-radiation monitoring, Security control, radiation isotope identification devices, non-destructive testing (defectoscopy), well-logging
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Multilayer Scintillation Arrays

Multilayer Scintillation Arrays

  • Mold Variations including BGO Arrays, LYSO(Ce) Scintillators, LYSO(Ce) Arrays,etc. Optional
  • Customized multilayer arrays up to 4~5 layers available
  • Applied to improve the resolution of PET (Positron Emission Tomography)
  • Additional Light Guides optional if required
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