Products

BGO Scintillator Arrays
Non-hygroscopic and Mechanical ruggedness,
  • Good radiation hardness
  • High density and atomic number, nearly complete absence of afterglow
  • Minimum pixel or crystal element size: 0.3mm x 0.3mm
  • Main applications: High Energy Physics (HEP), Small-sized tomography devices, gamma-radiation monitoring, Security control, radiation isotope identification devices, non-destructive testing, well-logging
  • Could be assembled as Multilayer Scintillation Arrays Inquire Us  
  • 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 a common heavy oxide scintillator material. BGO has a high atomic number of 83 and a high mass (7.13 g/cm3). The luminescence spectrum of BGO scintillators has a maximum in the visible spectral range at 480 nm.  Among the advantages of BGO, one should note their non-hygroscopicity and mechanical and radiation stability. BGO Scintillators are stable under radiation doses of up to 103 rad. 

    Another essential benefit 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 the above advantages of BGO crystal make it an attractive candidate in high-energy physics and for compact tomographic devices and active protection from background radiation.  

    Shanghai North Optics offers Pixelated BGO Scintillation Arrays with custom pixel element sizes and designs. North Optics's pixelated BGO scintillators are excellent for Positron Emission Tomography (PET), Computerized Tomography (CT), industrial Non-Destruction Testing (NDT), and other research applications. Our single-layer BGO array series could also be integrated into multi-layer scintillation arrays, further enhancing the resolution of Positron Emission tomography (PET).