DA-TYPE SOCKET ASSEMBLIES DEC. 2000 C7246 SERIES PATENT The C7246 series is a DA type socket assembly designed for 28 mm (1-1/8 inch) diameter side-on and head-on photomultiplier tubes. The C7246 series socket assembly incorporates a voltage-divider circuit and a current-to-voltage conversion circuit along with an amplifier that has a narrow but practical bandwidth (0 kHz to 20 kHz) to improve the effective S/N ratio. The C7246 series converts the low-level, high-impedance current of a photomultiplier tube into a low-impedance voltage output by a factor of 0.3 V/ µA. Since the C7246 series employs an active voltage-divider circuit, it ensures an excellent DC linearity at low power consumption and a gain adjustment function that does not affect the frequency bandwidth of the amplifier. FEATURES power consumption •Low Low offset voltage •Adjustable •Compact andgainlightfunction weight • SPECIFICATIONS Parameter C7246-01 C7246 28 mm Dia. Side-on 28 mm Dia. Head-on R374, R2228, R5929, R6095, etc R928, R3788, R3896, R4220, etc Applicable Photomultiplier Tubes Unit – – MAXIMUM RATINGS Parameter Value Unit ±18 -1500 0 to +40 -15 to +60 V dc V dc ˚C ˚C C7246-01 ±12 to ±15a 530 -400 to -1000 -300 to -1000 174 211 0.3 10 0.9 33 33 0 Hz to 20 kHz V dc µA Typ. V dc µA Typ. V/µA V V µA µA Input Voltage for Amplifier Supply Voltage for Divider Operating Temperature Storage Temperature GENERAL Parameter Input Voltage for Amplifier Input Current for Amplifier (at ±15 V) Recommended Supply Voltage for Dividerb Divider Current (at HV=-1000 V, VR=MIN)c Current to Voltage Conversion Factor Maximum Output Voltage (with no load resistor) Output Voltage (with 50 Ω load resistor) Maximum Input Signal Current (at 10 V output, HV=-1000 V with no load resistor) C7246 DC Pulse Frequency Bandwidth (-3 dB) Output Impedance Offset Voltage Output Noise Voltage Adjustable Gain Range Total Power Consumption (at ±15 V, HV=-1000 V, VR=MIN) Weight – Ω 50 ±0.3 0.09 10 190 55 Unit 30 227 50 mV Max. mV rms. Typ. dB Min. mW Typ. g Typ. a To be also practicable even with ±5 V of input supply voltage except for narrow output range (2 V max). b Use more than 600 V at negative high voltage input from view-points of output linearity, when giving more than 10 µA at signal input (anode out). c "VR = MIN." means that the PMT gain is set to minimum gain. Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office. 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. ©2000 Hamamatsu Photonics K.K DA-TYPE SOCKET ASSEMBLIES C7246 SERIES Figure 1. Schematic Diagram K SIGNAL OUTPUT P DY1 DY2 DY3 DY4 DY5 DY6 DY7 DY8 DY9 C1 DY10 C2 DY11 C3 AMP 50 Ω C4 TRANSISTOR CIRCUIT C1, C2: 0.01 µF C3: 0.022 µF C4: 0.047 µF VR = 5 MΩ * GAIN ADJ. CIRCUIT * PATENT -HV TACCC0103EC Figure 2. Frequency Response of Built-in Amplifier 10 TACCB0046EB RELATIVE GAIN (dB) 5 0 -3dB -5 -10 -15 -20 0.1 1 10 FREQUENCY (kHz) 100 1000 Figure 3. Dimensional Outline (Unit: mm) C7246 C7246-01 33.0 ± 0.3 3.5 5 38.0 ± 0.3 31.7 ± 0.3 49.0 ± 0.3 7 25.6 31.7 ± 0.3 HOUSING (METAL) 450 ± 10 450 ± 10 HOUSING (METAL) 33.0 ± 0.5 33.0 ± 0.5 4.7 29.0 ± 0.3 GAIN ADJ. GAIN ADJ. 1) POT (VR) 1) POT (VR) TACCA0175ED -HV SIGNAL OUTPUT ±15 V SHIELD CABLE 2) RED COAX RG-174/U BLACK SHIELDED CABLE (COVERING TWISTED PAIR) 3) GRAY NOTES: 1) Turning this pot clockwise increases the PMT gain. (25 turns max.) 2) At the end of HV cable, it's possible to attach SHV connector fitting RG-174/U. 3) Connect as follows. Orange Lead ⋅⋅⋅⋅⋅⋅⋅ +15 V White Lead ⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅ -15 V Shield ⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅ GND DA-TYPE SOCKET ASSEMBLIES C7246 SERIES OPTIONS ●HOUSING E7718 FOR C7246 (INCLUDING PART #1, 2, 4 AND 5) (Unit: mm) 1 2 3 4 5 6 26 42 132 1.5 M42 P = 1.5 (FOR FIXING) 1 2 3 5 * O-RING 3 6 60 43 [SUGGESTED FIXTURE LAYOUT FOR THE FLANGE] 54 ± 0.1 54 46 [HOW TO USE THE HOUSING WITH FLANGE] 4 HOUSING MAGNETIC SHIELD CASE PMT O-RINGS 4-M2 SCREWS L = 6 C7246 4-M3 FLANGE * 10.2 * THE FLANGE AND O-RING ARE AVAILABLE TO ORDER SEPARATELY AS P/N; A7719. TACCA0195EA ●FLANGE SET A7709 FOR C7246-01 (INCLUDING PART #1, 4, 5, 6, 8 AND !0) (Unit: mm) 3 4 5 6 54 7 8 80 ± 2 5 60 2 35.2 ± 1 1 1 2 3 4 5 6 7 8 9 !0 INSULATOR (CUSHION) PMT E989 MAGNETIC SHIELD CASE CLAMPING METAL PARTS 2-M3 SCREWS L = 5 FLANGE C7246-01 O-RING FIXTURE 2-M3 SCREWS L = 5 9 !0 [SUGGESTED FIXTURE LAYOUT FOR THE FLANGE] 48 3-M3 DIRECTION OF INCIDENT LIGHT 12 0° 12 0° 54 ± 0.1 TACCA0196EA * PATENT: JAPAN 1 [No.2963393], USA 1 [No.5880457] HOMEPAGE URL http://www.hamamatsu.com HAMAMATSU PHOTONICS K.K., Electron Tube Center 314-5, Shimokanzo, Toyooka-village, Iwata-gun, Shizuoka-ken, 438-0193, Japan, Telephone: (81)539/62-5248, Fax: (81)539/62-2205 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 E-mail: [email protected] Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658 E-mail: [email protected] 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 E-mail: [email protected] United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road Welwyn Garden City Hertfordshire AL7 1BW, United Kingdom, Telephone: 44-(0)1707-294888, Fax: 44(0)1707-325777 E-mail: [email protected] 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 E-mail: [email protected] TACC1015E04 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 E-mail: [email protected] DEC. 2000 IP Printed in Japan (500)