C7246 Hamamatsu Photonics, K.K.,, C7246 Datasheet

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C7246

Manufacturer Part Number
C7246
Description
Da-type Socket Assemblies
Manufacturer
Hamamatsu Photonics, K.K.,
Datasheet
GENERAL
FEATURES
SPECIFICATIONS
MAXIMUM RATINGS
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/ A.
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.
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 A at signal input (anode out).
c "VR = MIN." means that the PMT gain is set to minimum gain.
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
Low power consumption
Low offset voltage
Adjustable gain function
Compact and light weight
Applicable Photomultiplier Tubes
Input Voltage for Amplifier
Input Voltage for Amplifier
Input Current for Amplifier (at 15 V)
Recommended Supply Voltage for Divider
Divider Current (at HV=-1000 V, VR=MIN)
Current to Voltage Conversion Factor
Maximum Output Voltage (with no load resistor)
Output Voltage (with 50
Maximum Input Signal Current
Frequency Bandwidth (-3 dB)
Output Impedance
Offset Voltage
Output Noise Voltage
Adjustable Gain Range
Total Power Consumption (at
Weight
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.
Supply Voltage for Divider
Operating Temperature
Storage Temperature
(at 10 V output, HV=-1000 V with no load resistor)
Parameter
Parameter
Parameter
DEC. 2000
load resistor)
15 V, HV=-1000 V, VR=MIN)
b
c
DC
Pulse
R374, R2228, R5929, R6095, etc
28 mm Dia. Head-on
DA-TYPE SOCKET
ASSEMBLIES
C7246 SERIES
-400 to -1000
C7246
C7246
174
190
10
55
0 Hz to 20 kHz
-15 to +60
12 to
0 to +40
Value
-1500
0.09
530
0.9
0.3
10
33
33
50
0.3
18
R928, R3788, R3896, R4220, etc
15
28 mm Dia. Side-on
a
-300 to -1000
C7246-01
C7246-01
211
227
30
50
mV rms. Typ.
mW Typ.
mV Max.
dB Min.
g Typ.
A Typ.
A Typ.
V/ A
V dc
V dc
PATENT
Unit
V dc
V dc
Unit
Unit
V
V
˚C
˚C
A
A

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C7246 Summary of contents

Page 1

... DEC. 2000 The C7246 series 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 ...

Page 2

... DA-TYPE SOCKET ASSEMBLIES C7246 SERIES Figure 1. Schematic Diagram K DY1 DY2 DY3 DY4 DY5 DY6 DY7 DY8 * GAIN ADJ. CIRCUIT -HV Figure 2. Frequency Response of Built-in Amplifier TACCB0046EB -10 -15 -20 0.1 DY9 DY10 DY11 TRANSISTOR CIRCUIT FREQUENCY (kHz) SIGNAL OUTPUT ...

Page 3

... At the end of HV cable, it's possible to attach SHV connector fitting RG-174/U. 3) Connect as follows. Orange Lead White Lead Shield HOUSING (METAL) 1) POT (VR) SHIELD CABLE 2) COAX RG-174/U SHIELDED CABLE (COVERING TWISTED PAIR) 3) +15 V -15 V GND C7246-01 5 38.0 ± 0.3 49.0 ± 0.3 29.0 ± 0.3 31.7 ± 0.3 HOUSING (METAL) TACCA0175ED RED BLACK GRAY ...

Page 4

... FIXING) [HOW TO USE THE HOUSING WITH FLANGE] * O-RING 3 10.2 * THE FLANGE AND O-RING ARE AVAILABLE TO ORDER SEPARATELY AS P/N; A7719. FLANGE SET A7709 FOR C7246-01 (INCLUDING PART # AND !0 ) (Unit: mm [SUGGESTED FIXTURE LAYOUT FOR THE FLANGE] PATENT: JAPAN 1 [ No.2963393 ] , USA 1 [ No.5880457 ] * HAMAMATSU PHOTONICS K ...

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