C7942CK-12 Datasheet, PDF (2/6 Pages) Hamamatsu Corporation – Acquire digital X-ray image in real time and 170 mm diagonal size

Flat panel sensor C7942CK-12
s General ratings
Parameter
Pixel size
Photodiode area
Number of pixels
Number of active pixels
Readout
Video output (Data1 - 12)
Output data rate
Synchronous signal (Vsync, Hsync, Pclk)
bin0/1, ExtTrgGrb, ExtTrgLemo, IntExt
Scintillator
Specification
50 × 50
120 × 120
2400 × 2400
2240 × 2344
Charge amplifier array
RS-422 (differential), 12-bit
15.15
RS-422 (differential)
TTL
CsI
Unit
µm
mm
M pixels
pixels
-
-
MHz
-
-
-
s Absolute maximum ratings (Ta=25 °C)
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, E xtTrgLem o, IntExt)
Vin
0 to 6.0
V
Operating temperature *¹
Topr
0 to +35
°C
Storage temperature *¹
Tstg
0 to +50
°C
*1: No condensation
s Specification (Ta=25 °C A.vdd= 5.0 V, D.vdd= 5.0 V, V (±7.5)= ±7.5 V)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Frame rate (single operation)
Sf (int)
1.9
2
-
frames/s
Frame rate (2 × 2 binning)
-
-
4
-
frames/s
Frame rate (4 × 4 binning)
-
-
9
-
frames/s
Frame rate external (single operation)
Sf (ext)
-
Sf (int) to 0.1
-
frames/s
Noise (rms) *²
N (rms)
-
1100
-
electrons
Sensitivity *³
S
28
35
-
LSB/mR
Saturation charge
Csat
-
2.2
-
M electrons
Resolution *⁴
Reso
6
8
-
line pairs/mm
Dynamic range
-
-
2000
-
-
Defect line *⁵
-
-
-
20
lines
Output offset *⁶
-
-
65
200
-
*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 pixels that produce less than 1/8 of the average output from
surrounding pixels and are formed continuously from the opposite side of an amplifier array or a vertical shift register.
Without a couple of adjacent defect line.
*6: Average of all effective pixels in single operation at Sf (int)
Note: X-ray energy range is 20 k to 80 kVp.
s Resolution
100
[Ta=25 ˚C, A.vdd=5.0 V, D.vdd=5.0 V, V (±7.5)=±7.5 V]
90
80
70
60
50
40
30
20
10
0
0 1 2 3 4 5 6 7 8 9 10
SPATIAL FREQUENCY (line pairs/mm)
KACCB0177EA
2