
For Scintillation Counting, Fast Time Response
51 mm (2 Inch) Diameter, Bialkali Photocathode, 8-stage, Head-on Type
CHARACTERISTICS (at 25
°
C)
NOTE:
Anode characteristics are measured with a voItage distribution ratio and supply voltage shown below.
PHOTOMULTIPLIER TUBE
R9779
SuppIy Voltage: 1500 V, K: Cathode, Dy: Dynode, P: Anode, G: Grid,
Acc to be connected to Dy7 with a protection resistor (RP) in series. (See Figure 4)
VOLTAGE DlSTRlBUTlON RATlO AND SUPPLY VOLTAGE
Electrodes
K
Dy1
Ratio
1.3
4.8
GENERAL
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter
Supply Voltage
Average Anode Current
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. 2006 Hamamatsu Photonics K.K.
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SPECIFICATIONS
Parameter
Luminous (2856 K)
Blue Sensitivity Index (CS 5-58)
Luminous (2856 K)
Min.
—
—
—
—
—
—
—
—
—
Unit
μ
A/lm
—
A/lm
—
nA
ns
ns
ps
mA
Cathode Sensitivity
Anode Sensitivity
Gain
Anode Dark Current (After 30 minute storage in darkness)
Anode Pulse Rise Time
Electron Transit Time
Transit Time Spread (FWHM)
Time Response
Pulse Linearity (
±
2 % deviation)
95
11
47.5
5.0
×
10
5
15
1.8
20
250
50
—
—
—
—
100
—
—
—
—
Typ.
Max.
Parameter
Unit
nm
nm
—
—
mm
—
—
—
°
C
°
C
Spectral Response
Wavelength of Maximum Response
Window Material
Photocathode
Dynode
Base
Operating Ambient Temperature
Storage Temperature
MateriaI
Minimum Effective Area
Structure
Number of Stages
300 to 650
420
Borosilicate glass
Bialkali
46
Linear focused
8
Flying lead type
-30 to +50
-80 to +50
Description / Value
Unit
V
mA
Between Anode and Cathode
1750
0.1
Value
Dy2
Dy3
Dy4
Dy5
Dy6
Dy7
(Acc)
1
Dy8
P
1.5
1.5
1
1
1
1
1
G