C9250DP - Hamamatsu Photonics K.K.

IMAGE SENSOR

Flat panel sensor

High sensitivity, high-speed frame rate, high resolution

C9250DP

Flat panel sensor C9250DP is a digital X-ray image sensor newly developed as key devices for real-time imaging applications requiring

high resolution X-ray images.

Features Applications

High sensitivity

High-speed frame rate: 30 frames/s

624 × 624 pixels

Flat panel structure wituout image distortion

12-bit digital output

Digital radiography

Real time CT, etc.

KACCC0237EC

AMP ARRAY No. 1

VERTICAL SHIFT REGISTER

TIMING

PULSE

GENERATOR

OSCILLATOR

ExtTrg

PIXEL NUMBER

Vsync

Hsync

Pclk

A/D

IntExt

EXTERNAL POWER SUPPLY

A.vdd, D.vdd, V (±7.5)

(not attached)

AMP ARRAY No. 8

PHOTODIODE

ARRAY

WITH DIRECTLY

DEPOSITED CsI

SCINTILLATOR

Note: Signals are read out in order of pixel number.

BUFFER

AMP

BUFFER

AMP

PROCESSING

AMP

PROCESSING

AMP

389376

389375

624

623

12481247625

BIAS

GENERATOR

FIFO

A/D FIFO

VIDEO OUTPUT

(12 BIT DIGITAL)

■ Block diagram

C9250DP 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 78 ch amplifiers with a horizontal shift register. Analog video signals are

amplified as the charge on each video line by 624 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.

Flat panel sensor

C9250DP

■ General ratings

Parameter Specification Unit

Pixel size 200 × 200 µm

Photodiode area 124.8 × 124.8 mm

Number of pixels 624 × 624 pixels

Number of active pixels 608 × 616 pixels

Readout Charge amplifier array -

Video output (Data1 - 12) LVDS (differential) 12 bit -

Output data rate 15.15 MHz

Synchronous signal (Vsync, Hsync, Pclk) LVDS (differential) -

ExtTrg, IntExt TTL -

Scintillator CsI -

■ 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 (ExtTrg, IntExt) Vin 0 to 6.0 V

Operating temperature *1Topr 0 to +35 °C

Storage temperature *1Ts t g 0 to +50 °C

*1: No condensation.

■ 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) 28.5 30 - frames/s

Frame rate external Sf (ext) -Sf (int) to 0.1 -frames/s

Noise (rms) *2N (rms) - 2500 - electrons

Saturation charge Csat -10 -M electrons

Sensitivity *3S 1920 2400 - LSB/mR

Resolution *4Reso 22.5 -line pairs/mm

Dynamic range - - 4000 - -

Defect line *5- - - 10 lines

Output offset *6- - 65 200 LSB

*2: Internal trigger mode, single operation

*3: 80 kVp, acrylic filter 170 mm

*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 5/8 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.

■ Resolution

0 0.5 1 1.5 2 2.5

[Ta=25 ˚C, A.vdd=5.0 V, D .vdd=5.0 V, V (±7.5 V)=±7.5 V]

SPATIAL FREQUENCY (line pairs/mm)

CTF (%)

100

KACCB0136EB

Flat panel sensor C9250DP

■ Timing chart

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.

KACCC0362EA

1 FRAME

1st ROW 2nd ROW

ENLARGED VIEW

DUMMY LINES

Phe Pg Phe Phd PhdPhe

1st ROW

2nd ROW

1st ROW

2nd ROW

All pulses are counted in the

“High” period of Hsync+

All pulses are counted at the riging edge of Pclk+.

The effective video output is only included in the “Phe” period.

LAST ROW

Vsync+ (GRABBER)

Hsync+ (GRABBER)

Pclk+ (GRABBER)

Parameter Count

Effective line 616

He Dummy line 8

Effective pixel 608

Phe Dummy pixel 17

Phd 157

Pg 19

Note: “He” is the Hsync count. Phe, Phd and Pg are the Pclk count.

KACCC0371EA

RECOMMENDATION: 50 % OF FRAME TIME

F rom Tmin to Tmax

Tvd

ExtTrgLemo

ExtTrgGrb

(TTL)

Vsync+

(LVDS)

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=100 µs

■ 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.

Flat panel sensor

C9250DP

Table 1: Pin assignment of 80-pin receptacle

Pin No. Signal Pin No. Signal

1Data1+ 41 Reserved

2Data1- 42 Reserved

3Data2+ 43 Reserved

4Data2- 44 Reserved

5Data3+ 45 Reserved

6Data3- 46 Reserved

7Data4+ 47 Reserved

8Data4- 48 Reserved

9Data5+ 49 Reserved

10 Data5- 50 Reserved

11 Data6+ 51 Reserved

12 Data6- 52 Reserved

13 Data7+ 53 Reserved

14 Data7- 54 Reserved

15 Data8+ 55 Reserved

16 Data8- 56 Reserved

17 Data9+ 57 Reserved

18 Data9- 58 Reserved

19 Data10+ 59 Reserved

20 Data10- 60 Reserved

21 Data11+ 61 Reserved

22 Data11- 62 Reserved

23 Data12+ (MSB) 63 Reserved

24 Data12- (MSB) 64 Reserved

25 Reserved 65 Reserved

26 Reserved 66 Reserved

27 Reserved 67 Reserved

28 Reserved 68 Reserved

29 Reserved 69 Reserved

30 Reserved 70 Reserved

31 Reserved 71 Reserved

32 Reserved 72 Reserved

33 IntExt (TTL) 73 ExtTrg (TTL)

34 Reserved 74 Reserved

35 Vsync+ 75 Reserved

36 Vsync- 76 Reserved

37 Hsync+ 77 Reserved

38 Hsync- 78 Reserved

39 Pclk+ 79 GND

40 Pclk- 80 GND

Unless otherwise noted, signal level is LVDS.

80-pin receptacle: PCS-E80LMO made by Honda Tsushin Kogyo Co., Ltd.

Mating plug: PCS-E80FA made by Honda Tsushin Kogyo Co., Ltd.

Pins described “Reserved” are prepared for an extention of the future. Do not connect any signal or power or GND to this plug.

■ System requirements

To operate C9250DP 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 15.15 MHz or more, LVDS interface synchronous signal

(See the frame grabber manual.)

The National Instruments IMAQ PCI-1424 (NI parts No. 777662-02) frame grabber has been verified to successfully acquire 12-

bit digital images from C9250DP. The IMAQ PCI-1422 (NI parts No. 777959-02) also acquires satisfactory images from

C9250DP. 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 (400 mA), V (±7.5) = ±7.5 ± 0.5 V (±100 mA)

Please use a low noise series power supply. (Avoid using a switching power supply.) A optional power cable (terminated with

an FGG.2B.307.CLAD92Z plug at one end and open at the other end; 2 m; see Table 2.) and an earth cable (AWG 18; 4 m)

comes supplied with C9250DP. An optional frame grabber cable for interface with the 80-pin receptacle (see Table 1) on

C9250DP is also available for synchronous signal, 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.

The earth terminal must be connected to a stable earth point to eliminate noise from surroundings.

Flat panel sensor

C9250DP

KACCC0202ED

VIDEO OUTPUT

(12-BIT DIGITAL)

Vsync, Hsync,

Pclk

IntExt

ExtTrg

X-ray SOURCE

FRAME

GRABBER

MONITOR

PC/AT

(REAR VIEW) OS +

IMAGE ACQUISITION SOFTWARE

VOLTAGE SOURCE

[A.vdd, D.vdd, V (±7.5)]

C9250DP

CMOS FLAT PANEL SENSOR C9250DP

■ Connection

Install the digital frame grabber board into the PC by the manufacture’s instructions. When a general-purpose frame grabber

board is used, trigger operation for IntExt and ExtTrg can be controlled with its digital I/O control.

Table 2: Power pin assignment and cable color

Pin No. Color Signal

1 Brown +7.5 V

2Red Analog GND

3 Orange -7.5 V

4Yellow Analog GND

5 Green Analog +5 V

6Blue Digital GND

7 Purple Digital +5 V

Shield -Analog GND

7-pin power plug: FGG.2B.307.CLAD92Z made by LEMO S. A.

7-pin power receptacle: ECG.2B.307.CLV made by LEMO S. A.

Flat panel sensor

C9250DP

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: 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

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

Cat. No. KACC1094E11

May 2007 DN

■ Dimensional outline (unit: mm, torelance: ±1 mm unless otherwise noted)

KACCA0130EH

■ 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 is defined 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 mater ials 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 (80 kV) even within the warranty period.

Window material is polycarbonate 1.0 mm thickness

Weight: 2.5 kg * ±0.5

200

30 150 * 27 *

33 *127 *

17 *165 *

ACTIVE AREA 121.6

SCINTILATOR TO

TOP COVER

10.3 *

ACTIVE AREA 123.2

20.5

31.1

425677

198

(4 ×) M3

DEPTH 4

(0, 0)

(607, 615)

CMOS FLAT PANEL SENSOR C9250DP

POWER

DIGITAL OUT

■ Optical frame grabber cable

Frame grabber Cable type No. Cable length Cable end Cable end

A8406-41 5 m

A8406-46 7 m

A8406-47 10 m

General-purpose

A8406-48 12 m

open

A8406-42 5 m

A8406-43 7 m

A8406-44 10 m

IMAQ PCI-1424 *7

A8406-45 12 m

PCS-E80FA *8

PCS-XE100MA+ *8

*7: Made by NI (National Instruments Corporation)

*8: Made by Honda Tsushin Kogyo Co. Ltd.

Note: The detailed information for these optional cables is shown in the datasheet of A8406 series.