S8984 Datasheet, PDF (1/7 Pages) Hamamatsu Corporation – CCD area image sensor Front-illuminated FFT-CCDs for X-ray imaging

IMAGE SENSOR
CCD area image sensor
S8984, S8985-02
Front-illuminated FFT-CCDs for X-ray imaging
S8984 is an FFT-CCD image sensor ideal for intra-oral X-ray imaging in dental diagnosis. S8984 has about 2 mega (1700 × 1200) pixels each of
which is 20 × 20 µm. The fiber optic plate (FOP) used as an input window is as thin as 1.5 mm but highly resistant to X-ray irradiation, making
S8984 very reliable even over a long-term operation. The scintillator coated on the FOP is optimized to have high X-ray sensitivity and high
resolution (20 Lp/mm).
S8985-02 is an easy-to-use X-ray imaging module using S8984, with added functions such as a cable assembly and X-ray trigger circuit. S8985-
02 is pin compatible with S8981-02 (number of pixels is increased). S8985-02 is advanced type of S8985 and adapted both AC and DC X-ray
sources.
Features
l Sensor has X-ray monitoring photodiode
l Compactness
5.1 mm thickness excluding I/O connector part
l High dynamic range: 12 bit
l Long-term stability
For use under 100,000 shots
(60 kVp, 30 mR X-ray irradiation)
l Resolution: 20 Lp/mm
l 1700 (H) × 1200 (V) pixel format
l Pixel size: 20 × 20 µm
l Coupled with FOS for X-ray imaging
l 100 % fill factor
l Low dark signal
l Low readout noise
l MPP operation
l AC/DC X-ray source adapted
Applications
l General X-ray imaging
l Non-destructive inspection
l Intra-oral X-ray imaging in dental diagnosis
s Selection guide
Type No.
S8984
S8985-02
s General ratings
Parameter
CCD structure
Fill factor
Number of active pixels
Pixel size
Active area
Vertical clock phase
Horizontal clock phase
Output circuit
Dimensional outline
Reliability
Window
Other
Cooling
Non-cooled
Number of
total pixels
1708 × 1202
Number of
active pixels
1700 × 1200
Active area
[mm (H) × mm (V)]
34 × 24
S8984
S8985-02
Full frame transfer
100 %
1700 (H) × 1200 (V)
20 (H) × 20 (V) µm
34 (H) × 24 (V) mm
2 phase
2 phase
Emitter follower without load resistance
39.5 (H) × 27.5 (V) mm
42.6 (H) × 30.6 (V) mm
100,000 shots at 60 kVp, 30 m Roentgen
Scintillator on 1.5 mm FOP
MPP mode (low dark current operation), module (S8985-02)
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