IMAGE SENSOR Flat panel sensor C9250DP High sensitivity, high-speed frame rate, high resolution 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 l Digital radiography l Real time CT, etc. l High sensitivity l High-speed frame rate: 30 frames/s l 624 x 624 pixels l Flat panel structure wituout image distortion l 12-bit digital output 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. PIXEL NUMBER 1 2 623 625 1247 1248 PHOTODIODE ARRAY WITH DIRECTLY DEPOSITED CsI SCINTILLATOR 389375 AMP ARRAY No. 1 VERTICAL SHIFT REGISTER 624 389376 EXTERNAL POWER SUPPLY A.vdd, D.vdd, V (7.5) (not attached) IntExt TIMING PULSE GENERATOR AMP ARRAY No. 8 OSCILLATOR ExtTrg Vsync Hsync Pclk BIAS GENERATOR BUFFER AMP PROCESSING AMP BUFFER AMP PROCESSING AMP A/D FIFO VIDEO OUTPUT (12 BIT DIGITAL) A/D FIFO KACCC0237EC Note: Signals are read out in order of pixel number. 1 Flat panel sensor C9250DP 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) ExtTrg, IntExt Scintillator Specification 200 x 200 124.8 x 124.8 624 x 624 608 x 616 Charge amplifier array LVDS (differential) 12 bit 15.15 LVDS (differential) TTL CsI Unit m mm pixels pixels MHz - 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 (ExtTrg, IntExt) 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 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) *2 N (rms) 2500 electrons Saturation charge Csat 10 M electrons Sensitivity *3 S 1920 2400 LSB/mR Resolution *4 Reso 2 2.5 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 [Ta=25 C, A.vdd=5.0 V, D.vdd=5.0 V, V (7.5 V)=7.5 V] 100 90 80 CTF (%) 70 60 50 40 30 20 10 0 0 0.5 1 1.5 2 2.5 SPATIAL FREQUENCY (line pairs/mm) KACCB0136EB 2 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. 1 FRAME 1st ROW 2nd ROW DUMMY LINES Vsync+ (GRABBER) 1st ROW 2nd ROW He LAST ROW All pulses are counted in the "High" period of Hsync+ Hsync+ (GRABBER) ENLARGED VIEW Vsync+ (GRABBER) 1st ROW 2nd ROW Hsync+ (GRABBER) Phe Pg Phe Phd Phe Phd Pclk+ (GRABBER) All pulses are counted at the riging edge of Pclk+. The effective video output is only included in the "Phe" period. KACCC0362EA Parameter He Phe Effective line Dummy line Effective pixel Dummy pixel Phd Pg Note: "He" is the Hsync count. Phe, Phd and Pg are the Pclk count. Count 616 8 608 17 157 19 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+ (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 s KACCC0371EA 3 Flat panel sensor C9250DP 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 12bit 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. Table 1: Pin assignm ent of 80-pin receptacle Pin No. Signal Pin No. Signal 1 Data1+ 41 Reserved 2 Data142 Reserved 3 Data2+ 43 Reserved 4 Data244 Reserved 5 Data3+ 45 Reserved 6 Data346 Reserved 7 Data4+ 47 Reserved 8 Data448 Reserved 9 Data5+ 49 Reserved 10 Data550 Reserved 11 Data6+ 51 Reserved 12 Data652 Reserved 13 Data7+ 53 Reserved 14 Data754 Reserved 15 Data8+ 55 Reserved 16 Data856 Reserved 17 Data9+ 57 Reserved 18 Data958 Reserved 19 Data10+ 59 Reserved 20 Data1060 Reserved 21 Data11+ 61 Reserved 22 Data1162 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 E xtTrg (TTL) 34 Reserved 74 Reserved 35 Vsync+ 75 Reserved 36 Vsync76 Reserved 37 Hsync+ 77 Reserved 38 Hsync78 Reserved 39 Pclk+ 79 GND 40 Pclk80 GND Unless otherwise noted, signal level is LVDS. 80-pin receptacle: PCS-E80LMO m ade by Honda Tsushin Kogyo Co., Ltd. Mating plug: PCS-E80FA m ade 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 G ND to this plug. 4 Flat panel sensor C9250DP 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. 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 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. (REAR VIEW) PC/AT VIDEO OUTPUT (12-BIT DIGITAL) Vsync, Hsync, Pclk OS + IMAGE ACQUISITION SOFTWARE FRAME GRABBER X-ray SOURCE MONITOR IntExt ExtTrg VOLTAGE SOURCE [A.vdd, D.vdd, V (7.5)] CMOS FLAT PANEL SENSOR C9250DP C9250DP KACCC0202ED 5 Flat panel sensor C9250DP Dimensional outline (unit: mm, torelance: 1 mm unless otherwise noted) SCINTILATOR TO TOP COVER 10.3 * 200 ACTIVE AREA 121.6 27 * 17 * 150 * 42 30 165 * (4 x) M3 DEPTH 4 POWER 77 (607, 615) 56 (0, 0) DIGITAL OUT ACTIVE AREA 123.2 20.5 CMOS FLAT PANEL SENSOR C9250DP 198 31.1 CMOS FLAT PANEL SENSOR C9250DP 12 127 * Window material is polycarbonate 1.0 mm thickness Weight: 2.5 kg 33 * * 0.5 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 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 (80 kV) even within the warranty period. Optical frame grabber cable Frame grabber Cable type No. Cable length Cable end A8406-41 5m A8406-46 7m General-purpose A8406-47 10 m A8406-48 12 m PCS-E80FA *8 A8406-42 5m A8406-43 7m IMAQ PCI-1424 *7 A8406-44 10 m A8406-45 12 m *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. Cable end open PCS-XE100MA+ *8 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. KACC1094E11 May 2007 DN