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CWO PD Detector

Advantage

1.High density

2.High detection efficiency

3.Lowest afterglow

4.Non Hygroscopic

5.Anti-Irradiation loss

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  • Kinheng provides scintillator coupled PD (photodiode) self-contained modules. According to different application scenarios, our company can provide high-energy P0.78, P1.6, P2.5, P5.2mm PD, which are widely used in security inspection (border inspection, package inspection, airport check, etc.), high-energy container inspection, heavy vehicle inspection, NDT, 3D scanning, ore screening and other industrial fields.

    5-1. Different materials’ performance parameters

    Scintillator material

    CsI(Tl)

    CdWO4

    GAGG:Ce

    GOS:Pr/Tb  Ceramic

    GOS:Tb     Film

    Light yield

    54000

    12000

    50000

    27000/45000

    145% of DRZ High

    Afterglow(after 30ms)

    0.6-0.8%

    0.1%

    0.1-0.2%

    0.01%/0.03%

    0.008%

    Decay Time(ns)

    1000

    14000

    48, 90, 150

    3000

    3000

    Hygroscopic

    Slightly

    None

    None

    None

    None

    Energy range

    Low energy

    High energy

    High energy

    High energy

    Low energy

    Overall costs

    Low

    High

    Middle

    High

    Low


    5-2
    PD performance parameters

    A.     Limit parameters

    Index

    Symbol

    Value

    Unit

    Max Reverse Voltage

    Vrmax

    10

    v

    Operation temperature

    Top

    -10 -- +60

    °C

    Storage temperature

    Tst

    -20 -- +70

    °C

    B.      PD photoelectric characteristics

    Parameter

    Symbol

    Term

    Typical value

    Max

    Unit

    Spectral response ranges

    λp

    350-1000

    -

    nm

    Peak response wavelength

    λ

    800

    -

    nm

    Photosensitivity

    S

    λ=550

    0.44

    -

    A/W

    λp=800

    0.64

    Dark current

    Id

    Vr=10mV

    3 - 5

    10

    pA

    Pixel capacitance

    Ct

    Vr=0,f=10kHz

    40 - 50

    70

    pF


    5-3
    PD Detector Drawing


    (P1.6mm CsI(Tl)/ GOS:Tb Detector)


    (P2.5mm GAGG/ CsI(Tl)/CdWO4 Detector)


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