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IMAGE SENSOR
Flat panel sensor
C7921CA
High resolution and high frame rate
Flat panel sensor C7921CA is a digital X-ray image sensor newly developed as key devices for non-destructive inspection, biomedical imaging, X-ray microscopy and other real-time X-ray imaging applications requiring high resolution and high image quality. C7921CA consists of a sensor board and a control board, both assembled in a thin, flat and compact package. The sensor board contains a CsI scintillator plate, a twodimensional photodiode array with FET switches and a signal processing IC chip. The photodiode array has a 1056 x 1056 pixel format with minimized blooming and is highly sensitive to bluish green light emitted from the CsI scintillator. Each row of pixels is addressed in sequence by the vertical shift register connected to the gate line. Light emission occurs when X-rays are absorbed in the CsI scintillator. This light emission enters directly into the two-dimensional photodiode array where an electric charge is stored in each pixel according to the light intensity. This charge is then transferred to the corresponding data line by applying a control signal to the vertical shift register. The sensor board also has 8 charge sensitive amplifier arrays each having 132 channel amplifiers with a horizontal shift register. These amplifiers with a total of 1056 channels are connected to a CDS (Correlated Double Sampling) circuit that senses the charge on each video line and sends it as the analog video signal from each amplifier array. The control board converts the analog video signal into a 12-bit digital signal and outputs it to an external frame grabber from a 12-bit parallel port. C7921CA delivers a frame rate of 16 frames per second using 4 x 4 binning and is ideal for high frame rate applications, also ideal for applications requiring high resolution because of its 50 m pixel size. Massive digital image data can easily be monitored on a display unit by using a frame grabber board and video memory installed in the PC. C7921CA will prove ideal tools for real-time X-ray imaging and processing where easy-to-use, high-resolution X-ray digital image sensors are needed.
Applications
Features
l Non-destructive inspection l Digital X-ray photography
s Block diagram
PIXEL NUMBER 12 1057 1055 1056 2111 2112 SHIFT REGISTER
l High quality image: 1056 x 1056 pixels l Pixel size: 50 x 50 m l No image distortion l Digital output (12 bits) l High-speed imaging by binning operation: 16 frames/s (4 x 4 binning) l Wide dynamic range l High cost performance
EXTERNAL POWER SUPPLY A. Vdd, D. Vdd V (7.5) (not attached)
SCINTILLATOR (52.8 mm x 52.8 mm)
PHOTODIODE ARRAY
IntExt
IntExt
BINNING (bin0, bin1)
1115135 AMP ARRAY No. 1
1115136
AMP ARRAY No. 8
TIMING PULSE GENERATOR BIAS GENERATER BUFFER AMP BUFFER AMP
PROCESSING AMP
OSCILLATOR ExtTrg Vsync Hsync Pclk
A/D
FIFO VIDEO OUTPUT (12 BIT DIGITAL)
PROCESSING AMP
A/D
FIFO
KACCC0170EA
1
Flat panel sensor
s Functional specification
Parameter Readout Feedback capacitance of each amplifier Video output (Data1 - 12) Output data rate Synchronous signal (Vsync, Hsync, Pclk) bin0, 1, ExtTrg, IntExt Specification Charge amplifier array 0.15 pF RS-422 (differential) 12 bit 6.25 MHz RS-422 (differential) TTL
C7921CA
s Absolute maximum ratings (Ta=25 C)
Parameter Supply voltage for digital circuitry (+5 V) Supply voltage for analog circuitry (+5 V) Supply voltage for analog circuitry (7.5 V) Input voltage (bin0, 1, ExtTrg, IntExt) Operating temperature (not condensed) Storage temperature (not condensed) Symbol D.vdd A.vdd V(+/-7.5) Vin Topr Tstg Value +6.0 +6.0 12 0 to 6.0 0 to +35 0 to +50 Unit V V V V C C
s Specification (Unless otherwise noted, Typ. Ta=25 C A.vdd= 5.0 V, D.vdd= 5.0 V, V (7.5)= 7.5 V)
Parameter Symbol Pixel size Active area Pixel number Number of active pixels Frame speed (single operation) Sf (int) Frame speed (2 x 2 binning) Frame speed (4 x 4 binning) Frame speed external (single operation ) Sf (ext) Noise (rms.) N (rms.) Saturation charge Csat Resolution Reso Dynamic range Defect line * Scintillator * Without a couple of adjacent defect line that has no response. Specification 50 52.8 x 52.8 1056 x 1056 1032 x 1032 4 8 16 Sf (int) to 0.1 1000 2.9 8 2900 10 Max. CsI Unit m mm pixels pixels frame/s frame/s frame/s frame/s electrons M electrons line pairs/mm lines -
s Timing chart
To acquire images through an image grabber board, parameters that match the following timing chart should be described in the software program or parameter file.
Internal mode
Tvc (1 FRAME) Tvdpw Vsync+ (RS-422) Thd Hsync+ (RS-422) Thdpw Thc (1 LINE)
Thdpw Hsync+ (RS-422) Tpd Tpc (1 PIXEL) Pclk+ (RS-422)
Thc (1 LINE)
Tppw Tpdb
Tdd Data1 - 12 (RS-422)
Tdc
Tpdb
1
2
n-1
n
n+1
8n-1
8n
The number of n is 132
KACCC0167EA
2
Flat panel sensor
External mode
C7921CA
FROM Tvc TO 10 s RECOMMENDATION: 50 % OF FRAME TIME ExtTrg (TTL) Tvd Vsync+ (RS-422) Hsync+, Pclk and Data 1-12 are the same as internal trigger mode. Tvc - Tvdpw
KACCC0139EB
1 x 1 mode (Typ.)
Vsync Parameter Delay time (only external trigger mode) Cycle time Dummy pulse width Delay time Cycle time Dummy pulse width Delay time Cycle time Pulse width Delay time between each block Delay time Cycle time Symbol Tvd Tvc Tvdpw Thd Thc Thdpw Tpd Tpc Tppw Tpdb Tdd Tdc Value 450 243 920 2.8 230 59 150 160 85 480 50 160 Unit s ms s s s s ns ns ns ns ns ns
Hsync
Pclk
Data1-12
2 x 2 mode (Typ.)
Vsync Parameter Delay time (only external trigger mode) Cycle time Dummy pulse width Delay time Cycle time Dummy pulse width Delay time Cycle time Pulse width Delay time between each block Delay time Cycle time Symbol Tvd Tvc Tvdpw Thd Thc Thdpw Tpd Tpc Tppw Tpdb Tdd Tdc Value 450 122 920 2.8 230 140 150 160 85 480 50 160 Unit s ms s s s s ns ns ns ns ns ns
Hsync
Pclk
Data1-12
4 x 4 mode (Typ.)
Parameter Delay time (only external trigger mode) Vsync Cycle time Dummy pulse width Delay time Hsync Cycle time Dummy pulse width Delay time Cycle time Pclk Pulse width Delay time between each block Delay time Data1-12 Cycle time Note) The numbers of siginificant figures is two. (except Tvc) Symbol Tvd Tvc Tvdpw Thd Thc Thdpw Tpd Tpc Tppw Tpdb Tdd Tdc Value 450 62 920 2.8 230 190 150 160 85 480 50 160 Unit s ms s s s s ns ns ns ns ns ns
3
Flat panel sensor
s System requirements
C7921CA
To operate C7921CA at full performance, the following system and peripherals are required. PC: IBM compatible PC running on Windows 98 or later operating system Digital frame grabber card: Monochrome 16 bits or more, pixel clock 7 MHz or more, RS-422 interface synchronous signal (See the frame grabber manual.) The National Instruments IMAQ PCI-1424 (NI parts No. 777662-01) frame grabber has been verified to successfully acquire 12bit digital images from C7921CA. The IMAQ PCI-1422 (NI pats No. 777959-01) also acquires satisfactory images from C7921CA. You can utilize the demonstration software that comes with the frame grabber as a simple viewer, to acquire and save an image. To do so, refer to the frame grabber user's guide for how to use the camera information file for the demonstration software. Power source: A. Vdd = +5.0 0.1 V (700 mA), D. Vdd = +5.0 0.1 V (800 mA), V (7.5) = 7.5 0.5 V (100 mA). Use of a series power supply is recommended. (Avoid using a switching power supply.) A power cable (terminated with an FGG.2B.307.CLAD92Z plug at one end and open at the other end; 2 m; see Table 2.) comes supplied with C7921CA. An optional 36-pin cable for interface with the 36-pin receptacle (see Table 1) on C7921CA is also available for synchronous signal input, video output and external control. The voltages described above are specified at the flat panel sensor side. The impedance of the power cable attached with the flat panel sensor is low enough but it causes 0.1 V approx. drop. Therefore the voltage at the power source side should be set 0.1 V higher than the voltage specified above.
Table 1 Pin assignment of 36-pin receptacle
Pin No. Signal Pin No. Signal 1 Data1+ (MSB) 19 Data1- (MSB) 2 Data2+ 20 Data23 Data3+ 21 Data34 Data4+ 22 Data45 Data5+ 23 Data56 Data6+ 24 Data67 Data7+ 25 Data78 Data8+ 26 Data89 Data9+ 27 Data910 Data10+ 28 Data1011 Data11+ 29 Data1112 Data12+(LSB) 30 Data12- (LSB) 13 bin0 (TTL) 31 Gnd 14 bin1 (TTL) 32 Gnd 15 ExtTrg (TTL) 33 IntExt (TTL) 16 Vsync+ 34 Vsync17 Hsync+ 35 Hsync18 Pclk+ 36 PclkUnless otherwise noted, signal level is RS-422. 36-pin receptacle: TX20A-36R-D2GF1-A1L made by JAE (Japan Aviation Electronics Industry limited) 36-pin mating plug: TX20A-36PH1-D2P1-D1 made by JAE (Japan Aviation Electronics Industry limited)
Table 2 Power pin assignment and cable color
Pin No. Color 1 Brown 2 Red 3 Orange 4 Yellow 5 Green 6 Blue 7 Purple Shield 7-pin power plug: FGG.2B.307.CLAD92Z made by LEMO S. A. (http://www.lemo.ch) 7-pin power receptacle: ECG.2B.307.CLV made by LEMO S. A. Signal +7.5 V Analog GND -7.5 V Analog GND Analog +5 V Digital GND Digital +5 V Analog GND
4
Flat panel sensor
s Connection
C7921CA
Install the frame grabber board into the PC by following the manufacturer's instructions. When a general-purpose frame grabber board is used, binning or trigger operation for bin0, bin1, IntExt and ExtTrig can be controlled with its digital I/O control.
(REAR VIEW) PC/AT VIDEO OUTPUT (12 BIT DIGITAL) GRABBER Vsync, Hsync, Pclk OS + ACQUISITION SOFTWARE
X-RAY SOURCE BINNING (bin0, bin1) IntExt ExtTrg VOLTAGE SOURCE [A. Vdd, D. Vdd, V (7.5)]
MONITOR
MOS Image Sensor for X-Ray
C7921CA
KACCC0168EA
s Dimensional outline (unit: mm)
142 33 30
33
142
52.8
52.8
C7921CA MOS Image Sensor for X-Ray
Top cover is made of aluminum 1.0 mm thickness. Weight: 1.37 kg
KACCA0103EA
Power
Digital Out
5
General purpose frame grabber cable A8406-01/-06/-07/-08 Flat panel sensor C7921CA
Optional 36-pin cables
Two types of 36-pin cables are provided as options for connecting to the frame grabber. Type A (A8406-01): General-purpose interface cable for digital flame grabber. Type B (A8406-02): Interface cable for IMAQ PCI-1424 grabber board.
Cable type No. Cable length A8406-01 5m A8406-06 7m A A8406-07 10 m A8406-08 12 m A8406-02 5m A8406-03 7m B A8406-04 10 m A8406-05 12 m *1: Made by JAE (Japan Aviation Electronics Industry, Limited) *2: Made by Honda Tsushin Kogyo Co. Ltd. Type Cable end Cable end open TX20A-36PH1-D2P1-D1 *1 PCS-XE100MA *2
A8406-01/-06/-07/-08 cable for general frame grabber
A8406-01/-06/-07/-08 is a cable that connects the flat panel sensor (C7921CA, etc.) to a general frame grabber. One end of this cable has a 36-pin plug mating with the C7921CA digital output receptacle, but the other end is left open. Connect the open end to a plug that mates with the frame grabber to be used. Cable color coding and specifications are shown in the table below.
s Cable color coding and specifications
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Signal Data1+ (MSB) Data2+ Data3+ Data4+ Data5+ Data6+ Data7+ Data8+ Data9+ Data10+ Data11+ Data12+ (LSB) bin0 (TTL) bin1 (TTL) ExtTrg (TTL) Vsync+ Hsync+ Pclk+ Cable color blue green gray black pink white orange brown red yellow purple blue green gray black pink white orange Marking color white white white black white red white white white black blue black Pin No. 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Signal Data1- (MSB) Data2Data3Data4Data5Data6Data7Data8Data9Data10Data11Data12- (LSB) Gnd Gnd IntExt (TTL) VsyncHsyncPclkCable color orange brown red yellow purple blue green gray black pink white orange brown red yellow purple blue green Marking color red white white white black blue white white white black white black black
s Dimensional outline (unit: mm)
a 18 36
36-PIN CABLE
1 TX20A-36PH1-D2P1-D1
19
Cable type No. A8406-01 A8406-06 A8406-07 A8406-08
a 5000 140 7000 140 10000 140 12000 140
KACCA0096EB
6
Digital frame grabber cable for IMAQ PCI-1424
A8406-02/-03/-04/-05
A8406-02/-03/-04/-05 cable for IMAQ PCI-1424 frame grabber
A8406-02/-03/-04/-05 cable is designed to connect the flat panel sensor (C7921CA, etc.) to the National Instrument IMAQ PCI1424 and PCI-1422 digital frame grabber board. Both ends of this cable have connectors. One end is a 36-pin plug mating with the C7921CA digital output receptacle, while the other end is a 100-pin plug for the IMAQ PCI-1424 and PCI-1422.
s Pin connection for A8406-02
TX20A-36PH1-D2P1-D1 Signal Pin No. 1 Data1+ (MSB) 2 Data2+ 3 Data3+ 4 Data4+ 5 Data5+ 6 Data6+ 7 Data7+ 8 Data8+ 9 Data9+ 10 Data10+ 11 Data11+ 12 Data12+ (LSB) 13 bin0 (TTL) 14 bin1 (TTL) 15 ExtTrg (TTL) 16 Vsync+ 17 Hsync+ 18 Pclk+ PCS-XE100MA Pin No. 23 21 19 17 15 13 11 9 7 5 3 1 33 35 37 41 43 49 TX20A-36PH1-D2P1-D1 Signal Pin No. 19 Data1- (MSB) 20 Data221 Data322 Data423 Data524 Data625 Data726 Data827 Data928 Data1029 Data1130 Data12- (LSB) 31 Gnd 32 Gnd 33 IntExt (TTL) 34 Vsync35 Hsync36 PclkPCS-XE100MA Pin No. 24 22 20 18 16 14 12 10 8 6 4 2 99 100 39 42 44 50
s Dimensional outline (unit: mm)
PCS-XE100MA
a 18 36
51
1
1
19 36-PIN CABLE 100 TX20A-36PH1-D2P1-D1 PCS-XEM100LU2 50
Cable type No. A8406-02 A8406-03 A8406-04 A8406-05
a 5000 140 7000 140 10000 140 12000 140
KACCA0097EB
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. * This product was not designed and manufactured for use as a medical X-ray device. System manufacturers must take responsibility for obtaining MHW or FDA approval when incorporating this product into a medical diagnostics system. * This product is warranted for a period of 12 months after the date of the shipment. The warranty is limited to make a replacement or repair of any defective material due to defects in workmanship or materials used in manufacture. It does not cover loss or damage of the product due to natural calamity, misuse or total radiation dose over 1 million Roentgen (80 kV) even within the warranty period.
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. (c)2003 Hamamatsu Photonics K.K.
HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://www.hamamatsu.com
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658 France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10 United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777 North Europe: Hamamatsu Photonics Norden AB: Smidesvagen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01 Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741 Cat. No. KACC1066E05
Sep. 2003 DN
7

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