Update for Hamamatsu MPPC

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Update for Hamamatsu MPPC SensL SiPM

• Carl Zorn
• JLAB Radiation Detector
• Medical Imaging Group

Thursday, April 16, 2009
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470 nm
Remeasure PDE for chosen scintillator
520 nm
SCSF-78
Slide 2
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JLAB PDE Setup
470 10 nm
Blue LED
Blue LED
T211C
Slide 3
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SensL PDE curves
470 nm
520 nm
Slide 4
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Hamamatsu PDE curves
470 nm
520 nm
(100 µm)
(50 µm)
(25 µm)
Slide 5
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Latest PDE data (470 nm)
Slide 6
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Effect of Increased Bias on Hamamatsu MPPC
50 µm (1 mm2) _at_ Vop
50 µm _at_ Vop 0.5 v
50 µm _at_ Vop 1.0 v
Slide 7
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Effect of Bias on Detected Noise (SensL)
A35H (1 mm2) _at_ V Vbr 2 v
A35H (1 mm2) _at_ V Vbr 4 v
Slide 8
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Current Array Packages
Slide 9
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Compare packages
18 mm
16 mm
13 mm
Array Size 13 x 13 mm2 Active area 2.85 x 2.85
x 16 mm2 (77) Pixel Count 8640 x 16 (20
µm) 3640 x 16 (35 µm)
Array Size 16 x 18 mm2 Active Area 3x3x16 mm2
(50) Pixel Count 14,400 x 16 (25 µm) 3600 x 16
(50 µm)
Slide 10
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New SensL Package
Slide 11
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Hamamatsu MPPC (summed) pulses
200 ns
50 µm
25µm
Blue LED
Slide 12
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SensL SiPM Array Pulses
Single channel pulse from SPMA-1 16-channel array
Summed pulse from SiPMPlus array
200 ns
Slide 13
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Relative Response of Full Arrays
Slide 14