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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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Basic Properties:

Melting Point(K) 1323 Density (g/cm3) 7.13
Thermal Expansion Coefficient(C-1) 7 x 10-6 Cleavage Plane None
Hardness(Mohs) 5 Hygroscopic No
Wavelength of Emission Max.(nm) 480 Lower Wavelength Cutoff(nm) 320
Refractive Index @ Emission Peak 2.15 Emission Peak Wavelength(nm) 550
Lower Wavelength Cutoff(nm) 330 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

Bismuth germanate Bi4Ge3O12 (BGO) is one of the most widely used heavy oxide scintillator materials. BGO has a high atomic number (83) of the heavy component Bismuth element and a high density of the material (7.13 g/cm3). The luminescence spectrum of BGO scintillators has a maximum in the visible spectral range at 480 nm.  Among advantages of BGO crystals, one should note their non-hygroscopicity, mechanical and radiation stability. BGO scintillators are stable under radiation doses of up to 103 rad. 
Another important advantage of BGO crystals is a nearly complete absence of afterglow. The decay time of the main scintillation component of BGO at room temperature is 300 ns. All above advantages of BGO crystal makes it successfully used in experiments of high-energy physics, small-sized tomography devices and an active protection from background activity.  
Hangzhou Shalom EO offers the BGO arrays with customzied pixels and pixels element size and design, BGO arrays  are used to make the multi-layer scintillation arrays which is used to improve resolution of Positron Emission Tomography (PET). Our BGO arrays are used in the Positron Emission Tomography (PET), Computerized Tomography (CT), industrial Non-Destruction Testing (NDT) and other research applications.


LYSO(Ce) Arrays

LYSO(Ce) Arrays

  • High light output
  • High density and Fast
  • Customized Array and Pixel size
  • Gap between Each Pixel: minimum 0.05 mm
  • Pixel Light Uniformity in Arrays: <10% or customized
  • Applications: Positron emission tomography (PET), Medical X-ray Computerized Tomography (CT), High energy physics, Nuclear medicine, Nuclear radiation scanner
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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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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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