R464_15 Datasheet, PDF (1/2 Pages) Hamamatsu Corporation – For Photon Counting 5 mm × 8 mm Bialkali Photocathode 51 mm (2 lnch) Diameter, Head-on Type

PHOTOMULTIPLIER TUBES
R464, R585
For Photon Counting 5 mm × 8 mm Bialkali Photocathode
51 mm (2 lnch) Diameter, Head-on Type
GENERAL
Parameter
Spectral Response
R464
R585
Wavelength of Maximum Response
Photocathode
MateriaI
Minimum Effective Area
Window Material
R464
R585
Dynode
Structure
Number of Stages
Operating Ambient Temperature
Storage Temperature
Base
Suitable Socket
Description / Value
300 to 650
160 to 650
420
Bialkali
5×8
Borosilicate glass
Synthetic silica glass
Box and Grid
12
-30 to +50
-80 to +50
21-pin glass base
E678-21C (supplied)
MAXIMUM RATINGS (Absolute Maximum Values)
Supply Voltage
Average Anode Current
Parameter
Between Anode and Cathode
Value
1500
0.01
CHARACTERISTICS (at 25 °C)
Parameter
Cathode Sensitivity
Luminous (2856 K)
Radiant at 420 nm
Anode Sensitivity
Luminous (2856 K)
Radiant at 420 nm
Gain
Anode Dark Counts (after 30 min storage in darkness)
Time Response
Anode Pulse Rise Time
Electron Transit Time
Min.
30
—
100
—
—
—
—
—
NOTE: Anode characteristics are measured with the voltage distribution ratio shown below.
Typ.
50
50
300
3.0 × 10⁵
6.0 × 10⁶
5
13
70
Max.
—
—
—
—
—
15
—
—
Unit
nm
nm
nm
—
mm
—
—
—
—
°C
°C
—
—
Unit
V
mA
Unit
µA/lm
mA/W
A/lm
A/W
—
s^-1
ns
ns
VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE
Electrode K G Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 Dy11 Dy12 P
Ratio
4
0 2.5 1.5 1
1
1
1
1
1
1
11
1
Supply Voltage: 1000 Vdc, K: Cathode, Dy: Dynode, G: Grid, P: Anode
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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. ©2010 Hamamatsu Photonics K.K.