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IMAGE SENSOR
Flat panel sensor
C7942CA-02, C7943CA-02
Acquire digital X-ray image in real time and 170 & 176 mm diagonal size
Flat panel sensors C7942CA-02 and C7943CA-02 are digital X-ray image sensors newly developed as key devices for non-destructive inspection, biochemical imaging, X-ray microscopy and other real-time X-ray imaging applications requiring high resolution and high image quality.
Features
Applications
C7942CA-02: 2 frames/s (single operation) 9 frames/s (4 x 4 binning) C7943CA-02: 7 frames/s (single operation) 30 frames/s (4 x 4 binning) l Low noise and wide dynamic range l Compact package l Easy use
l C7942CA-02: 2400 x 2400 pixels C7943CA-02: 1248 x 1248 pixels l Digital output (12-bit) l High-speed imaging:
l Non-destructive inspection l Digital X-ray photography
s Block diagram (C7942CA-02)
C7942CA-02 is a lightweight and compact flat panel sensor consisting of a sensor board and a control board. The sensor board also has 8 charge-sensitive amplifier arrays each having 300 ch amplifiers with a horizontal shift register. Analog video signals are amplified as the charge on each video line by 2400 ch charge amplifiers with CDS (Correlated Double Sampling) circuits added, and are output each of 8 amplifier arrays. The control board converts the analog video signal into a 12-bit digital signal and outputs it to an external frame grabber through the 12-bit parallel port.
PIXEL NUMBER 12 2401
2339 2400 4799 4800
SCINTILLATOR (120 x 120 mm)
PHOTODIODE ARRAY
VERTICAL SHIFT REGISTER
EXTERNAL POWER SUPPLY A.vdd, D.vdd, V (7.5) (not attached)
IntExt
BINNING (bin0, bin1)
5759999 AMP ARRAY No. 1
5760000
AMP ARRAY No. 8
TIMING PULSE GENERATOR BIAS GENERATOR BUFFER AMP BUFFER AMP
PROCESSING AMP
OSCILLATOR ExtTrgLemo ExtTrgGrb Vsync Hsync Pclk
A/D
FIFO VIDEO OUTPUT (12 BIT DIGITAL)
PROCESSING AMP
A/D
FIFO
Note: Signals are read out in order of pixel number.
KACCC0216EB
1
Flat panel sensor
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
C7942CA-02, C7943CA-02
Unit m mm pixels pixels MHz -
C7942CA-02 C7943CA-02 50 x 50 100 x 100 120 x 120 124.8 x 124.8 2400 x 2400 1248 x 1248 2240 x 2344 1216 x 1220 Charge amplifier array RS-422 (differential) 12 bit 15.15 RS-422 (differential) TTL CsI
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, E xtTrg Grb, Ex t Tr gL e m o, IntE xt) Operating temperature *1 Storage temperature *1 *1: No condensation 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 [Ta=25 C, A.vdd= 5.0 V, D.vdd= 5.0 V, V (7.5)= 7.5 V]
Parameter Frame rate (single operation) Frame rate (2 x 2 binning) Frame rate (4 x 4 binning) Frame rate external (single operation)
2
Symbol Sf (int)
Min. 1.9 -
Sf (ext)
Noise (rms) * N (rms) electrons Saturation charge Csat M electrons Sensitivity *3 S 20 LSB/mR Resolution *4 Reso 6 line pairs/mm Dynamic range Defect line *5 lines Output offset *6 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 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 100 kVp.
C7942CA-02 Typ. Max. 2 4 9 Sf (int) to 0.1 1100 2.2 25 8 2000 20 65 200
Min. 6.65 -
C7943CA-02 Typ. Max. 7 15 30 Sf (int) to 0.1 2300 10 22.4 28 4 5 4300 10 65 200
Unit frames/s frames/s frames/s frames/s
s Resolution
100 90 80 70 [Ta=25 C, A.vdd=5.0 V, D.vdd=5.0 V, V (7.5 V)=7.5 V]
CTF (%)
60 50 40 30 C7943CA-02 20 10 0 0 1 2 3 4 5 6 7 8 9 10 C7942CA-02
SPATIAL FREQUENCY (line pairs/mm)
KACCB0135EA
2
Flat panel sensor
s Timing chart
C7942CA-02, C7943CA-02
To acquire images through an image grabber board, write parameters in the software program or parameter file by referring to the following timing chart and description.
1 FRAME
Vsync+ (GRABBER) 1st ROW 2nd ROW Hsync+ (GRABBER) He LAST ROW
DUMMY LINES
1st ROW 2nd ROW
All pulses are counted in the "High" period of Hsync+ ENLARGED VIEW
Vsync+ (GRABBER)
1st ROW Hsync+ (GRABBER) Phe Pclk+ (GRABBER) Pg Phe Phd
2nd ROW
Phe
Phd
All pulses are counted at the riging edge of Pclk+. The effective video output is only included in the "Phe" period.
KACCC0362EA
Pulse C7942CA-02 1x1 2x2 Effective line 2344 1172 He Dummy line 56 28 Effective pixel 2240 1120 Phe Dummy pixel 160 80 Phd 526 1726 Pg 21 21 Note: "He" is the Hsync count. Phe, Phd and Pg are the Pclk count. Parameter 4x4 586 14 560 40 2326 21 1x1 1220 28 1216 32 334 27 C7943CA-02 2x2 610 14 608 16 958 27 4x4 305 7 304 8 1270 27
s 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 output.
From Tmin to Tmax RECOMMENDATION: 50 % OF FRAME TIME ExtTrgLemo ExtTrgGrb (TTL)
Tvd
Vsync+ (RS-422) Hsync+, Pclk+ and Data 1-12 are the same as internal trigger mode. * Tmin is defined as 1/Sf (int). * Tmax is defined as the reciprocal of the minimum value of Sf (ext). * Tvd=390 s (C7942CA-02) 210 s (C7943CA-02)
KACCC0369EA
3
Flat panel sensor
s System requirements
C7942CA-02, C7943CA-02
To operate C7942CA-02 and C7943CA-02 Flat Panel Sensors at full performance, the following system and peripherals are required. * PC: IBM compatible PC running on Windows XP * Digital frame grabber card: Monochrome 16 bits or more, pixel clock 16 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 with optional memory 64 MB (NI parts No. 920130-64) has been verified to successfully acquire 12-bit digital images from both C7942CA-02 and C7943CA-02. The IMAQ PCI-1422 (NI parts No. 777959-01) also acquires satisfactory images from C7943CA-02. 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 (1000 mA), V (7.5) = 7.5 0.5 V (100 mA) Please use of a series power supply. (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.), an external trigger cable (terminated with an FFA.OS.302.CLAC37 plug at one end and open at the other end; 5 m; see table 3.) and an earth cable (AWG 18; 4 m) comes supplied with C7942CA-02 and C7943CA-02. An optional frame grabber cable for interface with the 36-pin receptacle (see Table 1) on C7942CA-02 and C7943CA-02 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. Install a noise filter on the AC power input line to prevent surges on the AC line. To supply the synchronous signal through ExtTrgGrb, apply high level of TTL to ExtTrgLemo and IntExt, or leave them without connection. On the contrary, to use ExtTrgLemo, set high level to ExtTrgGrb and IntExt, or leave them without connection. The earth terminal must be connected to a stable earth point to eliminate noise from surroundings.
Ta b le 1 : P in a s s ig n m e n t o f 3 6 -p in re c e p ta c le
P in N o . S ig n a l P in N o . 1 D a ta 1 2 + (M S B ) 19 2 D a ta 11 + 20 3 D a ta 1 0 + 21 4 D a ta 9 + 22 5 D a ta 8 + 23 6 D a ta 7 + 24 7 D a ta 6 + 25 8 D a ta 5 + 26 9 D a ta 4 + 27 10 D a ta 3 + 28 11 D a ta 2 + 29 12 D a ta 1 + (L S B ) 30 13 b in 0 (T T L ) 31 14 b in 1 (T T L ) 32 15 E xtTrg G rb (T T L ) 33 16 V s yn c + 34 17 H s yn c + 35 18 P c lk + 36 U n le ss o th e rw is e no te d, sig n al le vel is R S -4 2 2. 3 6 -p in re ce p tac le : T X 2 0 A -3 6 R -D 2 G F 1 -A 1 L m a d e b y J A E (J a p an A viatio n E lec tro nics Ind u stry, lim ite d ) M a tin g p lu g : T X 2 0 A -3 6 P H 1 -D 2 P 1 -D 1 E m ad e b y J A E (J ap a n A via tio n E le c tro n ic s In du s try, lim ite d ) S ig n a l D a ta 1 2 - (M S B ) D a ta 11 D a ta 1 0 D a ta 9 D a ta 8 D a ta 7 D a ta 6 D a ta 5 D a ta 4 D a ta 3 D a ta 2 D a ta 1 - (L S B ) GND GND In tE xt (T T L ) V s yn c H s yn c P c lk -
Ta b le 2 : P o w e r p in a s s ig n m e n t a n d c a b le c o lo r
P in N o . C o lo r 1 B ro w n 2 Red 3 O ra n g e 4 Ye llo w 5 G re e n 6 B lu e 7 P u rp le S h ie ld 7 -p in p o w e r re c ep tac le : E C G .2 B .3 0 7.C LV m a de b y L E M O S . A . M a tin g p o w e r p lu g : F G G .2 B .3 0 7.C L A D 9 2 Z m a de b y L E M O S . A . S ig n a l + 7 .5 V A n a lo g G N D -7 .5 V A n a lo g G N D A n a lo g + 5 V D ig ital G N D D ig ital + 5 V A n a lo g G N D
Ta b le 3 : E x te rn a l trig g e r p in a s s ig n m e n t a n d c a b le c o lo r
P in N o . C o lo r 1 Red 2 B la ck S h ie ld 2 -p in re c ep tac le : E C P.0 S .3 02 .C L L m a de b y L E M O S . A M a tin g p lu g : F FA .0 S .3 0 2.C L A C 3 7 m a de b y L E M O S . A . S ig n a l E xtTrg L e m o (T T L ) S ig n a l G N D A n a lo g G N D
4
Flat panel sensor
s Connection
C7942CA-02, C7943CA-02
Install the frame grabber board into the PC by the manufacturer's instructions. When a general-purpose frame grabber board is used, binning or trigger operation for bin0, bin1, IntExt and ExtTrgGrb can be controlled with its digital I/O control.
(REAR VIEW) PC/AT VIDEO OUTPUT (12 BIT DIGITAL) Vsync, Hsync, Pclk OS + ACQUISITION SOFTWARE
FRAME GRABBER
X-RAY SOURCE BINNING (bin0, bin1) IntExt ExtTrgGrb
MONITOR
ExtTrgLemo
VOLTAGE SOURCE [A. vdd, D. vdd, V (7.5)]
CMOS FLAT PANEL SENSOR C794*CA-02
C7942CA-02, C7943CA-02
KACCC0217ED
s Dimensional outline (unit: mm, tolerance: 1 mm unless otherwise noted)
SCINTILLATOR TO TOP COVER 8.3 * 200 c 28 10
17 *
4 150 * 27 *
d
ACTIVE AREA a
DIGITAL OUT
ACTIVE AREA b
(0, 0)
e
EXT.TRG.
165 *
198
15
43
57
46
CMOS FLAT PANEL SENSOR C794*CA-02
12
POWER
(4 x) M3 DEPTH 4
CMOS FLAT PANEL SENSOR C794*CA-02
37
12 Top cover is made of aluminum 1.0 mm thick. weight: 2.4 kg
127 *
33 *
* 0.5 mm C7942CA-02 C7943CA-02 a b c d 112 117.2 33.5 22.9 121.6 122 31.1 20.5
e (2239, 2343) (1215, 1219)
KACCA0135ED
5
Flat panel sensor
s Notice
C7942CA-02, C7943CA-02
* 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 is defined at the time of shipment. Characteristics may vary somewhat due to exposure to X-rays so take proper coutermeasures 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 make a 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 1 million Roentgen (less than 100 kVp) even within the warranty period. * As described above, flat panel sensors have limited resistance to radiation. This must be taken into account when using a flat panel sensor under continuous irradiation (in-line non-destructive inspection, etc.) When using flat panel sensors in non-destructive inspection equipment, please contact us and provide information such as irradiation conditions.
C7942CA-02, C7943CA-02 conforms to European EMC directives: EN61326 Class A.
s Optional frame grabber cables
Cable type No. Cable length Cable end A8406-31 5m A8406-36 7m General-purpose A8406-37 10 m A8406-38 12 m TX20A-36PH1-D2P1-D1E *8 A8406-32 5m A8406-33 7m IMAQ PCI-1424 *7 A8406-34 10 m A8406-35 12 m *7: Made by NI (National Instruments Corporation) *8: Made by JAE (Japan Aviation Electronics Industry, Limited) *9: Made by Honda Tsushin Kogyo Co. Ltd. Note: The detailed information for these optional cable is shown in the datasheet of A8406 series. Frame grabber Cable end open
PCS-XE100MA+ *9
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)2007 Hamamatsu Photonics K.K.
HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184, 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.: 19, 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
6
Cat. No. KACC1098E09 May 2007 DN

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