Flat panel sensors C7942CA-02, C7943CA-02
2
General ratings
Absolute maximum ratings (Ta=25 °C)
Specifications [Ta=25 °C, A.vdd= 5.0 V, D.vdd= 5.0 V, V(±7.5)= ±7.5 V]
Parameter C7942CA-02 C7943CA-02 Unit
Pixel size 50 × 50 100 × 100 μm
Photodiode area 120 × 120 124.8 × 124.8 mm
Number of pixels 2400 × 2400 1248 × 1248 pixels
Number of active pixels 2240 × 2344 1216 × 1220 pixels
Readout Charge amplifier array -
Video output (Data1-12) RS-422 (differential), 12-bit -
Output data rate 15.15 MHz
Synchronous signal (Vsync, Hsync, Pclk) RS-422 (differential) -
bin0/1, ExtTrgGrb, ExtTrgLemo, IntExt TTL -
Scintillator CsI -
Parameter Symbol Value Unit
Supply voltage for digital circuitry (+5 V) D.vdd +6.0 V
Supply voltage for analog circuitry (+5 V) A.vdd +6.0 V
Supply voltage for analog circuitry (±7.5 V) V(±7.5) ±12 V
Input voltage (bin0/1, ExtTrgGrb, ExtTrgLemo, IntExt) Vin 0 to 6.0 V
Operating temperature *1Topr 0 to +35 °C
Storage temperature *1Tstg 0 to +50 °C
Incident X-ray energy - 100 kVp
*1: No condensation
Parameter Symbol C7942CA-02 C7943CA-02 Unit
Min. Typ. Max. Min. Typ. Max.
Frame rate (single operation) Sf(int) 1.9 2 - 6.65 7 - frames/s
Frame rate (2 × 2 binning) - - 4 - - 15 - frames/s
Frame rate (4 × 4 binning) - - 9 - - 30 - frames/s
Frame rate external (single operation) Sf(ext) - Sf(int) to
0.1 --
Sf(int) to
0.1 - frames/s
Noise (rms) *2N(rms) - 1100 - - 2300 - electrons
Saturation charge Csat - 2.2 - - 10 - M electrons
Sensitivity *3S 20 25 - 22.4 28 - LSB/mR
Resolution *4Reso 6 8 - 4 5 - line pairs/mm
Dynamic range - 2000 - - 4300 - -
Defect line *5- - - 20 - - 10 lines
Blemish *6- - - 600 - - 600 μm
Non-uniformity of sensitivity *6---4--4 %
Defect cluster *6-Not allowed Not allowed -
Bright line output adjacent to a defect
line *6- - - 120 - - 120 %
Output offset *6- - 65 200 - 65 200 LSB
*2: Internal trigger mode, single operation
*3: at 80 kVp without filter
*4: Spatial frequency at CTF=5 %
*5: A defect line is a horizontal or vertical line containing 4 or
more cosecutive pixels located at the opposite side of an
amplifier array or a shift register, that produce 1/8 of the
average sensitivity of the surrounding pixels.
Adjacent defective lines are not allowed in the vertical or
horizontal directions.
*6: See P. 7, 8, “Description of terms”
*7: Average of all effective pixels in single operation at Sf(int)
Note: X-ray energy range is 20 k to 100 kVp.
Resolution
KACCB0135EB
Spatial frequency (line pairs/mm)
CTF (%)
012345678910
0
100
90
80
70
60
50
40
30
20
10
[Ta=25 °C, A.vdd=5.0 V, D.vdd=5.0 V, V (±7.5 V)=±7.5 V]
C7943CA-02
C7942CA-02