R3256_15 Datasheet, PDF (1/2 Pages) Hamamatsu Corporation – PHOTOMULTIPLIER TUBE

PHOTOMULTIPLIER TUBE
R3256
51 mm (2 Inch) Diameter, Multialkali Photocathode
10-Stage, Head-on Type
GENERAL
Parameter
Spectral Response
Wavelength of Maximum Response
Photocathode
MateriaI
Minimum Effective Area
Window Material
Dynode
Structure
Number of Stages
Operating Ambient Temperature
Storage Temperature
Base
SuitabIe Socket
Description / Value
Unit
300 to 850
nm
420
nm
Multialkali
—
46
mm
Borosilicate glass
—
Linear focused
—
10
—
-30 to +50
°C
-30 to +50
°C
JEDEC No. B14-38
—
E678–14W (Sold Separately)
—
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter
Value
Unit
Supply Voltage
Between Anode and Cathode
Between Anode and Last Dynode
1600
V
350
V
Average Anode Current
0.1
mA
CHARACTERISTICS (at 25 °C)
Parameter
Cathode Sensitivity
Luminous (2856 K)
Radiant Sensitivity at 420 nm
Luminous (2856 K)
Anode Sensitivity
Radiant Sensitivity at 420 nm
Red / White Ratio
Gain
Anode Dark Current (after 30 min. storage in darkness)
Time Response
Anode Pulse Rise Time
Electron Transit Time
Min.
80
—
20
—
0.15
—
—
—
—
Typ.
150
64
150
6.4 × 10⁴
0.2
1.0 × 10⁶
5
3.4
31
Max.
—
—
—
—
—
—
20
—
—
Unit
µA/lm
mA/W
A/lm
A/W
—
—
nA
ns
ns
VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE
Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 P
Ratio
2
1
1
1
1
1
1
1
1
1
1
Supply Voltage: 1250 Vdc, K: Cathode, Dy: Dynode, P: Anode
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. ©2012 Hamamatsu Photonics K.K.