Flat panel sensor
C10900D
Four selectable scan modes
Photodiode area: 124.8 × 124.8 mm
The C10900D is a flat panel sensor developed for CT and panoramic imaging. It operates in 4 selectable scan modes to capture Xray images: “Fast mode” and “Partial mode” with a pixel size of 200 × 200 μm, and “Fine mode” and “Panoramic mode” with a pixel
size of 100 × 100 μm. A single C10900D serves as the X-ray sensor for both CT and panoramic imaging.
Features
Applications
Four selectable scan modes with different number of
active pixels and pixel sizes
Cone beam CT
Digital radiography, etc.
High-speed imaging: 280 frames/s (Panoramic mode)
High sensitivity: 6000 LSB/mR
Wide dynamic range
Active area: Approx. 12 × 12 cm (1248 × 1248 pixels)
13-bit digital output (Fast mode, Partial mode)
For assembly into equipment (supplied without case)
Structure (Fast mode)
The C10900D is comprised of a sensor board and a control board. Mounted on the sensor board is a CMOS image sensor chip made up of a twodimensional photodiode array, row-scanning vertical shift register, and 8 charge amplifier arrays. Each charge amplifier array has a horizontal shift
register and consists of 78 ch charge amplifiers with CDS circuit.
CsI scintillator is directly deposited on the two-dimensional photodiode array. X-rays incident on the scintillator are converted to fluorescence,
which then enters the two-dimensional photodiode array where electric charge is accumulated in each pixel according to the light intensity. The
accumulated charge on each row is sequentially selected by the row-scanning vertical shift register, transferred to the amplifiers through the data
line, and converted to a voltage signal. Then an analog signal is sent out from each amplifier array by scanning the horizontal shift register.
The control board converts the analog signal into a 13-bit digital signal, which is then sent to a frame grabber board as a 13-bit parallel output
through one port.
This product is bare board type for installation into equipment and is not covered with a metal shielded case. See “Notice” for details on EMC.
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Flat panel sensor
C10900D
Selectable scan modes
Four scan modes are available with different number of active pixels and pixel sizes.
Active area for each scan mode
Fast mode, Fine mode
Partial mode
Panoramic mode
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General ratings
Parameter
Pixel size
Photodiode area
Number of pixels (H × V)
Active area
Number of active pixels (H × V)
Readout
Video output (Data1-13)
Output data rate
Synchronous signal (Vsync, Hsync, Pclk)
ExtTrgGrb, IntExtGrb, ResoGrb, ScanGrb,
ExtTrgIO, IntExtIO, ResoIO, ScanIO
Scintillator
Fast mode
200 × 200
Partial mode
Fine mode
Panoramic mode
200 × 200
100 × 100
100 × 100
124.8 × 124.8
624 × 624
1248 × 1248
121.6 × 123.2
121.6 × 62.0
121.6 × 123.2
121.6 × 7.2
608 × 616
608 × 310
1216 × 1232
1216 × 72
Charge amplifier array
LVDS (differential) 13-bit
LVDS (differential) 12-bit
17.68
17.68
35.35
35.35
LVDS (differential)
Unit
μm
mm
pixels
mm
pixels
MHz
-
TTL
-
Directly deposited CsI
-
Absolute maximum ratings (Ta=25 °C)
Parameter
Supply voltage for digital circuitry (+5 V)
Supply voltage for analog circuitry (+5 V)
Input voltage (ExtTrgGrb, IntExtGrb, ResoGrb,
ScanGrb, ExtTrgIO, IntExtIO, ResoIO, ScanIO)
Operating temperature *1
Storage temperature *1
Incident X-ray energy
Symbol
D.vdd
A.vdd
Value
+6.0
+6.0
Unit
V
V
Vin
0 to 6.0
V
Topr
Tstg
-
0 to +40
-10 to +60
90
°C
°C
kVp
*1: No condensation
2
Flat panel sensor
C10900D
Specifications (Typ. Ta=25 °C, A.vdd=5.0 V, D.vdd=5.0 V)
Fast mode
Parameter
Symbol
Sf(int)
N(rms)
Csat
S
Reso
-
Min.
33.2
4800
2
-
Typ.
35
2900
10.5
6000
2.5
3600
Max.
-
Unit
frames/s
electrons
M electrons
LSB/mR
line pairs/mm
-
Parameter
Symbol
Sf(int)
N(rms)
Csat
S
Reso
-
Min.
66.5
4800
2
-
Typ.
70
2900
10.5
6000
2.5
3600
Max.
-
Unit
frames/s
electrons
M electrons
LSB/mR
line pairs/mm
-
Parameter
Symbol
Sf(int)
N(rms)
Csat
S
Reso
-
Min.
16.1
2800
3.6
-
Typ.
17
1300
2.3
3500
4.5
1700
Max.
-
Unit
frames/s
electrons
M electrons
LSB/mR
line pairs/mm
-
Symbol
Sf(int)
N(rms)
Csat
S
Reso
-
Min.
266
2800
3.6
-
Typ.
280
1300
2.3
3500
4.5
1700
Max.
-
Unit
frames/s
electrons
M electrons
LSB/mR
line pairs/mm
-
Frame rate
Noise (rms) *2
Saturation charge
Sensitivity *3
Resolution *4
Dynamic range
Partial mode
Frame rate
Noise (rms) *2
Saturation charge
Sensitivity *3
Resolution *4
Dynamic range
Fine mode
Frame rate
Noise (rms) *2
Saturation charge
Sensitivity *3
Resolution *4
Dynamic range
Panoramic mode
Resolution
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Frame rate
Noise (rms) *2
Saturation charge
Sensitivity *3
Resolution *4
Dynamic range
*2: Internal trigger mode
*3: At 80 kVp, acrylic filter 170 mm
*4: Spatial frequency at CTF=5 %
Note: X-ray energy range is 20 k to 90 kVp.
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Flat panel sensor
C10900D
Other specifications (Fine mode, Typ. Ta=25 °C, A.vdd=5.0 V, D.vdd=5.0 V)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Defect line *5
8
lines
Blemish *6
600
μm
Non-uniformity of sensitivity *6
4
%
Defect cluster *6
Not allowed
Bright line output adjacent to a defect line *6
120
%
Output offset *7
65
200
LSB
*5: A defect line is a horizontal or vertical line containing 4 or more cosecutive pixels located, that produce 1/8 of the average sensitivity of
the surrounding pixels.
*6: See P. 9, “Description of terms (Fine mode)”
*7: Average of all effective pixels in single operation at Sf(int)
Timing chart
Internal trigger mode
To acquire images through a frame grabber board, write parameters in the software program or parameter file by referring to the following
timing chart and description.
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Parameters
Fast mode
0
616
He
8
8
Phe
608
8
Phd
177
Pg
157
Note: “He” is the Hsync count. Phe, Phd and Pg are the Pclk count.
Dummy line
Effective line
Dummy line
Dummy pixel
Effective pixel
Dummy pixel
Partial mode
0
310
0
8
608
8
177
157
Fine mode
0
1232
16
16
1216
16
354
311
Panoramic mode
0
72
0
16
1216
16
354
346
4
Flat panel sensor
C10900D
External trigger mode
To acquire images in external trigger mode, input an external trigger pulse as shown below. When the time Tvd has passed after the rising
edge of the external trigger pulse, synchronous signals and video signals are obtained.
When used in synchronization with a pulsed X-ray source, X-rays should be irradiated during the Txray period.
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(Typ.)
Parameter
Delay time (only external trigger mode)
Vsync Cycle time (internal trigger mode)
Pulse width of Vsync+ in low period (internal trigger mode)
Symbol
Tvd
Tvc
Tvdpw
Fast mode
83
28.5
170
Partial mode
110
14.2
120
Fine mode
81
56.7
170
Panoramic mode
140
3.56
290
Unit
μs
ms
μs
Note: The numbers of significant figures is two. (except Tvc)
To operate the sensor in external trigger mode, set the frame rate in the range shown below.
Frame rate range in external trigger mode
Scan mode
Fast mode
Partial mode
Fine mode
Panoramic mode
Frame rate: Sf(ext)
Unit
Sf(int) to 10
frames/s
Sf(int) to 50
frames/s
Trigger mode selection
Setting via 40-pin receptacle
Mode
Internal trigger mode
External trigger mode
Pin No. A17
(ExtTrgGrb)
(Input signal is ignored)
Rectangular signal
(See the above figure.)
Pin No. B17
(IntExtGrb)
Low
High
When selecting the trigger mode via the 40-pin receptacle, do no connect to the external I/O connector.
Setting via external I/O connector
Operating mode
Internal trigger mode
External trigger mode
External I/O connector pin No.
Pin No. 1 (IntExtIO)
Pin No. 2 (ExtTrgIO)
Low
(Input signal is ignored)
Rectangular signal
High
(See the above figure.)
40-pin receptacle pin No.
Pin No. A17 (ExtTrgGrb), Pin No. B17 (IntExtGrb)
High or Open
5
Flat panel sensor
C10900D
Scan mode selection
Setting via 40-pin receptacle
Scan mode
Fast mode
Partial mode
Fine mode
Panoramic mode
Pixel size
Pin No. A15 (ResoGrb)
200 μm
High
100 μm
Low
Pin No. A16 (ScanGrb)
High
Low
High
Low
When selecting the scan mode via the 40-pin receptacle, do not connect to the external I/O connector.
Setting via external I/O connector
Scan mode
Fast mode
Partial mode
Fine mode
Panoramic mode
Pixel size
200 μm
100 μm
External I/O connector pin No.
No. 3 (ResoIO)
No. 4 (ScanIO)
High
High
Low
High
Low
Low
40-pin receptacle pin No.
Pin No. A15 (ResoGrb) Pin No. A16 (ScanGrb)
High or Open
System requirements
To operate the C10900D at full performance, the following system and peripherals are required.
O PC: PC running on Windows XP
O Frame grabber board: Monochrome 16 bits or more, pixel clock 15.15 MHz or more, LVDS interface synchronous signal
O Power source: A.vdd = +5.0 ± 0.1 V (900 mA), D.vdd = +5.0 ± 0.1 V (350 mA)
· The voltages described above are specified at the flat panel sensor side.
· Please use a low noise series power supply. (Avoid using a switching power supply.)
· Install a noise filter on the AC power input line to prevent surges on the AC line.
· Always ground the fixing plate to avoid the effects of noise from peripheral devices.
The power cable, frame grabber board cable, earth cable, image acquisition software, and image processing libraries are excluded from the
flat panel sensor.
6
Flat panel sensor
C10900D
Pin assignment of 40-pin receptacle
Pin No.
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
Signal
Data1+ (LSB)
Data2+
Data3+
Data4+
Data5+
Data6+
Data7+
Data8+
Data9+
Data10+
Data11+
Data12+
Data13+ (MSB)
Reserved
ResoGrb (TTL)
ScanGrb (TTL)
ExtTrgGrb (TTL)
Vsync+
Hsync+
Pclk+
Pin No.
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
Signal
Data1- (LSB)
Data2Data3Data4Data5Data6Data7Data8Data9Data10Data11Data12Data13- (MSB)
Reserved
GND
GND
IntExtGrb (TTL)
VsyncHsyncPclk-
Unless otherwise noted, signal level is LVDS.
40-pin receptacle: 8931E-040-178LF (KEL Corporation)
Mating plug: 8925R-040-179F (KEL Corporation)
Pins described “Reserved” are prepared for an extention of the future.
Do not connect any signal or power or GND to this plug.
Pin assignment of external I/O connector
Pin No.
signal
1
IntExtIO (TTL)
2
ExtTrgIO (TTL)
3
ResoIO (TTL)
4
ScanIO (TTL)
5
6
7
8
Reserved
Reserved
Reserved
Digital GND
Setting
Low
High
Low
High
Low
High
-
Function
Internal trigger mode
External trigger mode
Trigger signal Input under the external mode
Pixel size: 100 × 100 μm
Pixel size: 200 × 200 μm
Panoramic mode/Partial mode
Fine mode/Fast mode
Digital GND
8-pin receptacle 53048-0810 mode by Molex Japan Co., Ltd.
Matins plug 51021-0800 made by Molex Japan Co., Ltd.
Power pin assignment
Pin No.
1
2
3
4
5
Signal
Digital GND
Digital +5 V
Analog GND
Analog +5 V
Shield (Analog GND)
Power plug: 53259-0529 (Molex Japan Co., Ltd.)
Power receptacle: 51067-0500 (Molex Japan Co., Ltd.)
7
Flat panel sensor
C10900D
Connection example
Install the frame grabber board into the PC by the manufacture’s instructions. When a general-purpose frame grabber board with I/O control
is used, the trigger mode can be set by controlling IntExtGrb and ExtTrgGrb through the I/O line. The scan mode can be set by controlling
ResoGrb and ScanGrb. The trigger mode can also be set by controlling IntExtIO and ExtTrgIO via the external I/O connector. The scan mode
can be set by controlling ResoIO and ScanIO.
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Dimensional outline (unit: mm, tolerance: ±1 mm unless otherwise noted)
18.3
10
0.6
33.7
3.5
6.6
35
3.5
4.1
10
10
8
Active area 121.6
31
60
12.7
26
16
4
14 11
Photodiode area 124.8
31.5
73.8
3
Scintillator
to top cover
2.5
4
7
13.5
22
14
48
185
177
Active area 123.2 *
36.5
40.3
43.3
3
7
3
168
Photodiode area 124.8
The cover is made of carbon fiber (0.4 mm tickness)
Weight: 1.2 kg
KACCA0
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KACCA0254ED
8
Flat panel sensor
C10900D
Description of terms (Fine mode)
Blemish
Length of pixel cluster which has less than 90 % of the average sensitivity of the surrounding pixels.
Bright line output adjacent to a defect line
The relative sensitivity ratio “a/b” should be 120 % or less for both vertical and horizontal
lines, where “a” and “b” are defined as follows:
a: Average sensitivity of bright line (Line A) adjacent to defect line
b: Average sensitivity of standard line (Line B) adjacent to Line A
Note that the average sensitivity of the bright line is calculated from the region adjacent to
the defect region in the defect line.
Example: See the right figure
Defect region in defect line: From pixel (J, 1) to pixel (J, 15)
a: Average sensitivity from pixel (I, 1) to pixel (I, 15) or from pixel (K, 1) to pixel (K, 15)
b: Average sensitivity from pixel (H, 1) to pixel (H, 15) or from pixel (L, 1) to pixel (L, 15)
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Defect cluster
Formed with more than 3 × 3 pixels which have less than
1/8 of the average sensitivity of the surrounding pixels.
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Non-uniformity of sensitivity
16 × 16 segments are 16 × 16-divided active area excluded 1 mm from the whole edge. Xij is defined as the average sensitivity of each
segment.
Uniformity of sensitivity is calculated as following equation.
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9
Flat panel sensor
C10900D
Notice
· Do not subject the flat panel sensors to strong vibration or shock (Strong shock such as drop impacts may cause permanent damage to
these sensors).
· Users must take responsibility for implementing X-ray shielding safety measures to avoid the risk of X-ray exposure.
· Data listed in this datasheet was measured at the time of shipment. Characteristics may vary somewhat due to exposure to X-rays so
take proper countermeasures such as making periodic image correction.
· This product is warranted for a period of 12 months after the date of the shipment.
The warranty is limited to replacement or repair of any defective product due to defects in workmanship or materials used in manufacture.
The warranty does not cover loss or damage caused by natural disaster, misuse (including modifications and any use not complying with
the environment, application, usage and storage conditions described in this datasheet), or total radiation dose over 25000 Roentgen
(incident X-ray energy: less than 90 kVp) even within the warranty period.
· This product is bare board type for installation into equipment and is not covered with a metal shielded case. When designing an
equipment, implement EMC measures such as providing electromagnetic shielding on this product and the connection cables.
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