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CsI(Tl) Scintillator Array

Advantage：

1.Wavelength 550nm for PD

2.Excellence performance for afterglow and brightness in low energy x ray

3.Low cost

4. Minimal pixel dimension available

5.Reduced optical crosstalk

6.Good uniformity between pixel to pixel/ Array to array

7.TiO2/BaSO4/ESR/E60

8.Pixel Gap: 0.08, 0.1, 0.2, 0.3mm

9.Performance testing available


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Description Related Products
  • CsI(Tl) is the most typical alkali halide scintillation crystal which wavelength is 550nm, It's best matchable for PD, SiPM etc. CsI(Tl) has high density, High Z, No cleavage plane, excellent detection effiency, it's widely used in high energy physics, Nuclear detector, Space detection, security inspection,SPECT and container checking etc.

    Properties:


    Density（g/cm3）

    4.51

    Melting Point (K)

    894

    Thermal Expansion Coefficient (K-1)

    54 x 10-6

    Cleavage Plane

    None

    Hardness (Mho)

    2

    Hygroscopic

    Slightly

    Wavelength of Emission Maximum (nm)

    550

    Lower Wavelength Cutoff(nm)

    320

    Refractive Index at Emission Maximum

    1.79

    Primary Decay Time (ns)

    1000

    Afterglow (after 30ms) [%]

    0.5 – 0.8

    Light Yield (photons/keV)

    52- 56

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

    45


    1.  Type: linear array (1D) or 2D array 

    Our Advantage: 
    Minimal pixel dimension available
    Reduced optical crosstalk
    Good uniformity between pixel to pixel/ array to array
    TiO2/BaSO4/ESR/E60
    Pixel Gap: 0.08, 0.1, 0.2, 0.3mm
    Performance testing available

    2. Kinheng offers various arrays for end application
    We can provide CsI(Tl), CsI(Na), CdWO4, LYSO,LSO, YSO, GAGG, BGO,LaBr3 scintillation arrays. Based on the application TiO2/BaSO4/ESR/E60 are wildly used as reflective material for pixel isolation. Our mechanical processing keeps the minimal tolerance to optimize array’s physical properties including tolerance, dimension, minimal-cross talk and uniformity etc. .

    3. Materials’ properties

    Properties

    CsI(Tl)

    GAGG

    CdWO4

    LYSO

    LSO

    BGO

    GOS(Pr/Tb) Ceramic

    LaBr3

    Density(g/cm3)

    4.51

    6.6

    7.9

    7.15

    7.3~7.4

    7.13

    7.34

    4.9

    Hygroscopic

    Slightly

    No

    No

    No

    No

    No

    No

    Yes

    Relative light output(% of NaI(Tl)) (for γ-rays)

    45

    158(HL)/ 132(BL)/79(FD)

    32

    65-75

    75

    15-20

    71/ 118

    130-170

    Decay time(ns)

    1000

    150(HL)/ 90(BL)/48(FD)

    14000

    38-42

    40

    300

    3000/ 600000

    20

    Afterglow@30ms

    0.6-0.8%

    0.1-0.2%

    0.1-0.2%

    N/A

    N/A

    0.1-0.2%

    0.1-0.2%

    N/A

    Array type

    Linear and 2D

    Linear and 2D

    Linear and 2D

    2D

    2D

    2D

    Linear and 2D

    2D


    4. Mechanical design for assembling 

    Based on the end use of assembled array, there are many kinds of mechanic design from Kinheng to meet the medical and security inspection industry. 

    1D Linear array are mainly used for Security inspection industy, such as Bagger scanner, Aviation scanner, 3D scanner and NDT. Material Including CsI(Tl), GOS:Tb/Pr Film, GAGG:Ce, CdWO4 scintillator etc. They are typically coupled with Silicon Photodiode linear array for read out. 

    2D array are normally used for imaging, including Medical(SPECT, PET, PET-CT, ToF-PET), SEM, Gamma camera. These 2D array are typically coupled with SIPM array, PMT array for read out. Kinheng provides 2D array including LYSO, CsI(Tl), LSO, GAGG, YSO, CsI(Na), BGO scintillator etc. 

    Below is Kinheng’s typically design drawing for 1D And 2D array for industry. 


                   (Kinheng linear array)

     
     

                    (Kinheng 2D array)

    4-A: Important parameter: (A,B,C,D in above design)

    A.1 Material type: As per request from customer

    A.2 Pixel size: Linear array pixel size A,B,C & 2D array pixel size A, C are adjustable per request

    A.3 Pitch: Linear array A+B & 2D array B, D are adjustable per request

    A.4 GAP: We provided the smallest gap 0.1mm (including adhesive) for linear array and 0.08mm (including adhesive) for 2D array

    A.5 Array thickness: As per request. Kinheng provides customization

    A.6 Treatment of pixel: Polishing, finely ground or special request available

    4-B: Typical Pixel size& numbers

    Material

    Typical pixel size

    Typical numbers

    Linear

    2D

    Linear

    2D

    CsI(Tl)

    1.275x2.7

    1x1mm

    1x16

    19x19

    GAGG

    1.275x2.7

    0.5x0.5mm

    1X16

    8x8

    CdWO4

    1.275x2.7

    3x3mm

    1x16

    8x8

    LYSO/LSO/YSO

    N/A

    1X1mm

    N/A

    25x25

    BGO

    N/A

    1x1mm

    N/A

    13X13

    GOS(Tb/Pr) Ceramic

    1.275X2.7

    1X1mm

    1X16

    19X19


    4-C: Minimal size of Pixel

    Material

    Minimal pixel size

    Linear

    2D

    CsI(Tl)

    0.4mm pitch

    0.5mm pitch

    GAGG

    0.4mm pitch

    0.2mm pitch

    CdWO4

    0.4mm pitch

    1mm pitch

    LYSO/LSO/YSO

    N/A

    0.2mm pitch

    BGO

    N/A

    0.2mm pitch

    GOS(Tb/Pr) Ceramic

    0.4mm pitch

    1mm pitch

     
    5. Scintillation Array Reflector and Adhesive parameter

    Reflector

    Thickness of Reflector+Adhesive

    Linear

    2D

    TiO2

    0.1-1mm

    0.1—1mm

    BaSO4

    0.1mm

    0.1-0.5mm

    ESR

    N/A

    0.08mm

    E60

    N/A

    0.075mm


    6. Scintillation array Application

    Properties

    CsI(Tl)

    GAGG

    CdWO4

    LYSO

    LSO

    BGO

    GOS(Tb/Pr) Ceramic

    PET, ToF-PET

    Yes

    Yes

    Yes

    SPECT

    Yes

    Yes

    CT

    Yes

    Yes

    Yes

    Yes

    NDT

    Yes

    Yes

    Yes

    Bagger Scanner

    Yes

    Yes

    Yes

    Container Checking

    Yes

    Yes

    Yes

    Gamma Camera

    Yes

    Yes


    7. Quality control for Array

    7-1.Energy resolution testing(Na22)   


    7-2 .Floods map

    7-3.Relative light output testing for linear array 
    Kinheng has capacity for relative light output comparison testing for LYSO/GAGG with NaI(Tl)by PMT read out. 

    7-4. Uniformity Guarantee

    Kinheng will select each single pixel per request, we are able to keep the light output uniformity within ±5%,±10%, ±15% per different requirement. Each slab was carefully selected and tested.

    7-5.Internal defects testing 


    7-6.Physical dimension testing  




     


  • GAGG Scintillator Array

    LYSO Scintillator Array

    CdWO4 Scintillator Array

    BGO Scintillator Array

    GOS Scintillator Array, GOS Ceramic array, GOS film array

    LSO Scintillator Array

    YSO:Ce Scintillator Array

    LaBr3 Scintillator Array
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