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參數(shù)資料
| 型號(hào)： | R943-02 |
| 廠商： | Hamamatsu Photonics |
| 英文描述： | PHOTOMULTIPLIER TUBE |
| 中文描述： | 光電倍增管 |
| 文件頁(yè)數(shù)： | 2/4頁(yè) |
| 文件大小： | 167K |
| 代理商： | R943-02 |
PHOTOMULTIPLIER TUBE R943-02
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter
Supply Voltage
Between Anode and Cathode
Between Anode and Last Dynode
Average Anode Current
B
Average Pulse Count Rate
C
Average Cathode Current
D
CHARACTERISTlCS (at 25
°
C)
Parameter
Cathode Sensitivity
E
Quantum Efficiency
at 253.7 nm (Hg-Line)
at 632.8 nm (He-Ne Laser)
Luminous
F
Radiant at 253.7 nm (Hg-Line)
at 632.8 nm (He-Ne Laser)
at 700 nm
at 852.1 nm (Cs-Line)
Red/White Ratio
G
Anode Sensitivity
H
Luminous
F
Radiant at 253.7 nm (Hg-Line)
at 632.8 nm (He-Ne Laser)
at 700 nm
at 852.1 nm (Cs-Line)
Gain
H
Equivalent Anode Dark Current
J
Anode Dark Counts
K
Single Photoelectron PHD (Peak to Valley Ratio)
Time Response
H
Anode Pulse Rise Time
L
Electron Transit Time
M
NOTES
A
For cooling operation, another ceramic socket, type number E678-21D is
recommended, because the teflon socket type number E678-21C supplied
with the tube is not suitable for cooling operation due to its high thermal
expansion coefficient. Alternatively, it is recommended to solder a resistor,
capacitor, etc. directly on stem pins using a socket contact (100-2520S)
supplied by Winchester.
B
Averaged over any interval of 30 seconds maximum.
C
Measured at single photoelectron level. The discriminator level is set at val-
ley point.
D
In practical operation, the cathode current should be lower than 0.1 nA to
prevent shortening the life of the photocathode.
E
Supply voltage is 150 volts between the cathode and all other electrodes.
F
The light source is a tungsten filament lamp operated at a distribution tem-
perature of 2856 K.
G
The quotient of the cathode sensitivity measured with the light source is
the same as Note
E
passing through a red filter (Toshiba R-68) divided by
the cathode luminous sensitivity without the red filter.
H
Measured with supply voltage and voltage distribution ratio in Table 1.
J
Measured with supply voltage to provide the anode luminous sensitivity of
200 (A/lm) and the voltage distribution ratio in Table 1 after 30 minute stor-
age in the darkness.
K
Measured with supply voltage that gives 2
×
10
6
gain and with the voltage
distribution ratio shown in Table 1 after one hour storage in the cooler set
at -20
°
C.
The discriminator is set at 1/3 of a single photoelectron level.
Electrode
K
Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8
Distribution Ratio
3
1.5
1
1
1
1
1
1
1
SuppIy Voltage : 1500 V, K : Cathode, Dy : Dynode, P : Anode
1
1
Table 1: Voltage Distribution Ratio
The R943-02 is similar to the Burle C31034 series photomultiplier tube. The base
and voltage divider are different.
Replacement Information
Warning–Personal Safety Hazards
Electrical Shock
—
Operating voltages
applied to this device present a shock hazard.
Dy9
Dy10
P
L
The rise time is the time it takes the output pulse to rise from 10 % to 90 %
of the peak amplitude when the entire photocathode is illuminated by a
delta function light pulse.
M
The electron transit time is the interval between the arrival of a delta func-
tion light pulse at the entrance window of the tube and the time when the
output pulse reaches the peak amplitude. In measurement the entire pho-
tocathode is illuminated.
Value
Unit
2200
250
1
6
×
10
6
1
V
V
μ
A
s
-1
nA
Typ.
Unit
15
14
600
30
70
71
65
0.58
300
1.5
×
10
4
3.5
×
10
4
3.6
×
10
4
3.3
×
10
4
5
×
10
5
1
20
2.3
3.0
23
Min.
—
—
300
—
—
—
—
—
150
—
—
—
—
—
—
—
—
—
—
Max.
—
—
—
—
—
—
—
—
—
—
—
—
—
—
10
50
—
—
—
%
%
μ
A/lm
mA/W
mA/W
mA/W
mA/W
A/lm
A/W
A/W
A/W
A/W
—
nA
s
-1
—
ns
ns
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