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BGO Scintillator

Advantage

1.High density

2.High detection efficiency

3.Low afterglow

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  • BGO (Bi4Ge3012) is an oxide type scintillation material. It has high atomic number and density. BGO has good property including strong mechanical strength, non-hygroscopic, no cleavage. Extreme high density 7.13 g /cm3 which makes these crystals very suitable for the detection of natural radioactivity.
    BGO detectors are characterized by high energy resolution in the energy range 5 - 20 MeV, a relatively short decay time. Its parameters remain stable up to the doses of 5 x 104 Gy. Due to these features, BGO crystals are used in high-energy physics, spectrometry and radiometry of gamma-radiation, positron tomography nuclear medical imaging industry.

    Properties:



    Densityg/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/keV)

    8-10

    Photoelectron Yield [% of NaI(Tl)] (for γ-rays)

    15 - 20

    Temperature Response

    -1.2%/C

    Neutron Capture Cross-Section

    1.47b

    Afterglow @ 20ms

    150ppm


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