Datasheet C7942CA Datasheet (HAMAMATSU)

Page 1

IMAGE SENSOR

Flat panel sensor

C7942CA, C7943CA

Acquire digital X-ray image in real time and 170 & 176 mm diagonal size

Hamamatsu C7942CA and C7943CA Flat Panel Sensors are digital X-ray image sensors 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. C7942CA and C7943CA consist 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 two-dimensional photodiode array with FET switches and a signal processing IC chip. The photodiode array has a 2400 × 2400 (C7942CA) or 1248 × 1248 (C7943CA) 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 300 channel (C7942CA) or 156 channel (C7943CA) amplifiers with a horizontal shift register. These amplifiers with a total of 2400 channels (C7942CA) or 1248 channels (C7943CA) 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. C7943CA delivers a frame rate of 30 frames per second using 4 × 4 binning and is ideal for high frame rate applications. On the other hand, C7942CA is ideal for applications requiring high resolution because of its 50 µm 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. C7942CA and C7943CA will prove ideal tools for real-time Xray imaging and processing where easy-to-use, high-resolution X-ray digital image sensors are needed.

Applications

Non-destructive inspection

Digital X-ray photography

■ Block diagram (C7942CA)

PIXEL NUMBER

SCINTILLATOR (120 mm × 120 mm)

AMP ARRAY No. 1

24002339

480047992401

PHOTODIODE ARRAY

57600005759999

AMP ARRAY No. 8

SHIFT REGISTER

IntExt

TIMING PULSE GENERATOR

BIAS GENERATER

Features

C7942CA: 2400 × 2400 pixels C7943CA: 1248 × 1248 pixels

Digital output (12 bit)

Dynamic picture image C7942CA: 9 frame/s (4 × 4 binning) C7943CA: 30 frame/s (4 × 4 binning)

Low noise and wide dynamic range

Compact package

Easy use

EXTERNAL POWER SUPPLY A. Vdd, D. Vdd V (±7.5) (not attached)

IntExt

BINNING

(bin0, bin1)

OSCILLATOR

ExtTrg Vsync

Hsync Pclk

BUFFER AMP

PROCESSING AMP

A/D

FIFO

A/D FIFO

VIDEO OUTPUT (12 BIT DIGITAL)

KACCC0137EA

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■

Vsync+ (RS-422)

Hsync+ (RS-422)

Pclk+ (RS-422)

Data1 - 12 (RS-422)

In case of C7942CA, the number of n is 300. In case of C7943CA the number of n is 156.

Tvc (1 FRAME)

Thd

Thdpw Thc (1 LINE)

Tvdpw

Thdpw Thc (1 LINE)

Tpd

Tpdb

Tpc (1 PIXEL)

Tppw

Tpdb

1 2 n-1 n n+1

8n-1

TdcTdd

Functional specification

Flat panel sensor

C7942CA, C7943CA

Parameter C7942CA C7943CA

Readout Charge amplifier array

Feedback capacitance of each amplifier 0.15 pF 0.6 pF 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, ExtTrg, IntExt TTL

■

Absolute maximum ratings (Ta=25 °C)

Parameter Symbol Valu e 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, ExtTrg, IntExt) Vin 0 to 6.0 V Operating temperature (not condensed) Topr 0 to +35 °C Storage temperature (not condensed) Tstg 0 to +50 °C

■

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 C7942CA C7943CA Unit

Pixel size 50 100 µm

Active area 120 × 120 124.8 × 124.8 mm

Pixel number

5.76

(2400 × 2400)

1.56

(1248 × 1248)

M pixels

Number of active pixels (horizontal × vertical) - 2240 × 2368 1216 × 1232 pixels Frame speed (single operation) Sf (int) 2 7 frame/s Frame speed (2 × 2 binning) 4 15 frame/s Frame speed (4 × 4 binning) 9 30 frame/s Frame speed external (single operation) Sf (ext) Sf (int) to 0.1 Sf (int) to 0.1 frame/s Noise (rms.) N (rms.) 1100 2300 electrons Saturation charge Csat 2.2 10 M electrons Resolution Reso 8 5 line pairs/mm Dynamic range 2000 4300 Defect line * - 20 Max. 10 Max. lines Scintillator - CsI -

* Without a couple of adjacent defect line that has no response.

■ 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

KACCC0138EB

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ExtTrg (TTL)

Vsync+ (RS-422)

Flat panel sensor

External mode

FROM Tvc TO 10 s

RECOMMENDATION: 50 % OF FRAME TIME

Tvc - TvdpwTvd

C7942CA, C7943CA

1 × 1 mode (Typ.)

Pclk

Data1-12

2 × 2 mode (Typ.)

Hsync

Pclk

Data1-12

Hsync+, Pclk and Data 1-12 are the same as internal trigger mode.

KACCC0139EB

C7942CA

Parameter Symbol Value Unit

Delay time (only external trigger mode) Tvd 390 µs Cycle time Tvc 470 msVsync Dummy pulse width Tvdpw 770 µs

Delay time Thd 1.4 µs Cycle time Thc 190 µsHsync Dummy pulse width Thdpw 35 µs Delay time Tpd 65 ns Cycle time Tpc 66 ns Pulse width Tppw 33 ns Delay time between each block Tpdb 200 ns Delay time Tdd 34 ns Cycle time Tdc 66 ns

Parameter Symbol Value Unit

Delay time (only external trigger mode) Tvd 390 µs Cycle time Tvc 230 msVsync Dummy pulse width Tvdpw 770 µs

Delay time Thd 1.4 µs Cycle time Thc 190 µs Dummy pulse width Thdpw 110 µs Delay time Tpd 65 ns Cycle time Tpc 66 ns Pulse width Tppw 33 ns Delay time between each block Tpdb 200 ns Delay time Tdd 34 ns Cycle time Tdc 66 ns

4 × 4 mode (Typ.)

Parameter Symbol Value Unit

Delay time (only external trigger mode) Tvd 390 µs

Vsync

Pclk

Data1-12

Note) The numbers of siginificant figures is two. (except Tvc)

Cycle time Tvc 117 ms Dummy pulse width Tvdpw 770 µs

Delay time Thd 1.4 µs Cycle time Thc 190 µsHsync Dummy pulse width Thdpw 150 µs Delay time Tpd 65 ns Cycle time Tpc 66 ns Pulse width Tppw 33 ns Delay time between each block Tpdb 200 ns Delay time Tdd 34 ns Cycle time Tdc 66 ns

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1 × 1 mode (Typ.)

Pclk

Data1-12

2 × 2 mode (Typ.)

Vsync

Hsync

Pclk

Data1-12

Flat panel sensor

C7942CA, C7943CA

C7943CA

Parameter Symbol Val ue Unit

Delay time (only external trigger mode) Tvd 210 µs Cycle time Tvc 130 msVsync Dummy pulse width Tvdpw 420 µs

Delay time Thd 1.8 µs Cycle time Thc 110 µsHsync Dummy pulse width Thdpw 22 µs Delay time Tpd 65 ns Cycle time Tpc 66 ns Pulse width Tppw 33 ns Delay time between each block Tpdb 200 ns Delay time Tdd 33 ns Cycle time Tdc 66 ns

Parameter Symbol Val ue Unit

Delay time (only external trigger mode) Tvd 210 µs Cycle time Tvc 66 ms Dummy pulse width Tvdpw 420 µs

Delay time Thd 1.8 µs Cycle time Thc 110 µs Dummy pulse width Thdpw 63 µs Delay time Tpd 65 ns Cycle time Tpc 66 ns Pulse width Tppw 33 ns Delay time between each block Tpdb 200 ns Delay time Tdd 33 ns Cycle time Tdc 66 ns

4 × 4 mode (Typ.)

Parameter Symbol Val ue Unit

Delay time (only external trigger mode) Tvd 210 µs Cycle time Tvc 33 msVsync Dummy pulse width Tvdpw 420 µs

Delay time Thd 1.8 µs Cycle time Thc 110 µsHsync Dummy pulse width Thdpw 84 µs Delay time Tpd 65 ns

Pclk

Data1-12

Note) The numbers of siginificant figures is two.

Cycle time Tpc 66 ns Pulse width Tppw 33 ns Delay time between each block Tpdb 200 ns Delay time Tdd 33 ns Cycle time Tdc 66 ns

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Flat panel sensor

C7942CA, C7943CA

■ System requirements

To operate C7942CA and C7943CA Flat Panel Sensors 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 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 and C7943CA. The IMAQ PCI1422 (NI parts No. 777959-01) also acquires satisfactory images from C7943CA. You can utilize the demonstration software that comes with the frame grabber as a simple view er, 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.

Po wer 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). Use of a series power supply is recommended. (Av oid 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 C7942CA and C7943CA. An optional 36-pin cable for interface with the 36-pin receptacle (see Table 1) on C7942CA and C7943CA 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 Data8-

9 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 Pclk-

Unless 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 Signal

1 Brown +7.5 V

2 Red Analog GND

3 Orange -7.5 V

4 Yellow Analog GND

5 Green Analog +5 V

6 Blue Digital GND

7 Purple Digital +5 V

Shield - Analog GND 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.

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Flat panel sensor

C7942CA, C7943CA

■ Connection

Install the frame grabber board into the PC by following the manufacturer’s instructions. When a general-purpose frame grabber board i s u sed, bin nin g or tri gger operation for b in0 , bin 1, IntExt and ExtTrig can be control led with its digital I/O control.

OS + ACQUISITION SOFTWARE

VIDEO OUTPUT (12 BIT DIGITAL) Vsync, Hsync, Pclk

(REAR VIEW)

PC/AT

GRABBER

X-RAY SOURCE

MOS Image Sensor for X-Ray

■ Dimensional outline (unit: mm)

200

BINNING (bin0, bin1) IntExt ExtTrg

VOLTAGE SOURCE [A. Vdd, D. Vdd, V (±7.5)]

C7942CA, C7943CA

MONITOR

KACCC0140EA

198

MOS Image Sensor for X-Ray

Top cover is made of aluminum 1.0 mm thick.

C7942CA

120

C7943CA

124.8

KACCA0095EA

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General purpose frame grabber cable

A8406-01/-06/-07/-08

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.

Typ e Cable type No. Cable length Cable end Cable end

A8406-01 5 m

*1: Made by JAE (Japan Aviation Electronics Industry, Limited) *2: Made by Honda Tsushin Kogyo Co. Ltd.

A8406-01/-06/-07/-08 is a cable that connects the Flat Panel Sensor (C7942CA or C7943CA) to a general frame grabber. One end of this cable has a 36-pin plug mating with the C7942CA or C7943CA 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.

A8406-06 7 m A8406-07 10 m A8406-08 12 m

A8406-02 5 m A8406-03 7 m A8406-04 10 m A8406-05 12 m

A8406-01/-06/-07/-08 cable for general frame grabber

TX20A-36PH1-D2P1-D1 *

open

PCS-XE100MA *

■ Cable color coding and specifications

Pin No. Signal Cable color Marking color Pin No. Signal Cable color Marking color

1 Data1+ (MSB) blue - 19 Data1- (MSB) orange -

2 Data2+ green - 20 Data2- brown 3 Data3+ gray - 21 Data3- red 4 Data4+ black - 22 Data4- yellow 5 Data5+ pink - 23 Data5- purple 6 Data6+ white - 24 Data6- blue red 7 Data7+ orange white 25 Data7- green white 8 Data8+ brown white 26 Data8- gray white

9 Data9+ red white 27 Data9- black white 10 Data10+ yellow black 28 Data10- pink black 11 Data11+ purple white 29 Data11- white blue 12 Data12+ (LSB) blue red 30 Data12- (LSB) orange white 13 bin0 (TTL) green white 31 Gnd brown white 14 bin1 (TTL) gray white 32 Gnd red white 15 ExtTrg (TTL) black white 33 IntExt (TTL) yellow black 16 Vsync+ pink black 34 Vsync- purple white 17 Hsync+ white blue 35 Hsync- blue black 18 Pclk+ orange black 36 Pclk- green black

■ Dimensional outline (unit: mm)

18 36

36-PIN CABLE

Cable type No.

A8406-01a5000 ± 140 A8406-06 7000 ± 140 A8406-07 10000 ± 140 A8406-08 12000 ± 140

119

TX20A-36PH1-D2P1-D1

KACCA0096EB

Page 8

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 (C7942CA or C7943CA) to the National Instrument IMAQ PCI-1424 (NI parts No. 777662-01) digital frame grabber board. Both ends of this cable have connectors. One end is a 36-pin plug mating with the C7942CA or C7943CA digital output receptacle, while the other end is a 100-pin plug for the IMAQ PCI-1424.

■ Pin connection for A8406-02

TX20A-36PH1-D2P1-D1

Pin No.

1 Data1+ (MSB) 23 19 Data1- (MSB) 24

2 Data2+ 21 20 Data2- 22 3 Data3+ 19 21 Data3- 20 4 Data4+ 17 22 Data4- 18 5 Data5+ 15 23 Data5- 16 6 Data6+ 13 24 Data6- 14 7 Data7+ 11 25 Data7- 12 8 Data8+ 9 26 Data8- 10 9 Data9+ 7 27 Data9- 8

10 Data10+ 5 28 Data10- 6

11 Da ta11+ 3 29 D ata11- 4 12 Data12+ (LSB) 1 30 Data12- (LSB) 2 13 bin0 (TTL) 33 31 Gnd 99 14 bin1 (TTL) 35 32 Gnd 100 15 ExtTrg (TTL) 37 33 IntExt (TTL) 39 16 Vsync+ 41 34 Vsync- 42 17 Hsync+ 43 35 Hsync- 44 18 Pclk+ 49 36 Pclk- 50

Signal

PCS-XE100MA

Pin No.

TX20A-36PH1-D2P1-D1

Pin No.

Signal

PCS-XE100MA

Pin No.

■ Dimensional outline (unit: mm)

PCS-XE100MA

11819

TX20A-36PH1-D2P1-D1

36-PIN CABLE

100

PCS-XEM100LU2

Cable type No.

A8406-02a5000 ± 140 A8406-03 7000 ± 140 A8406-04 10000 ± 140 A8406-05 12000 ± 140

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.

KACCA0097EB

Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.

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: Smidesvägen 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. KACC1056E12 Sep. 2003 DN