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參數(shù)資料
| 型號(hào)： | R928 |
| 廠商： | Hamamatsu Photonics |
| 英文描述： | PHOTOMULTlPLlER TUBES |
| 中文描述： | PHOTOMULTlPLlER管 |
| 文件頁數(shù)： | 3/4頁 |
| 文件大小： | 80K |
| 代理商： | R928 |
J:
K:
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The electron transit time is the interval between the arrival of delta function
light pulse at the entrance window of the tube and the time when the anode
output reaches the peak amplitude. In measurement, the whole photo-
cathode is illuminated.
Also called transit time jitter. This is the fluctuation in electron transit time
between individual pulses in the signal photoelectron mode, and may be
defined as the FWHM of the frequency distribution of electron transit times.
Hysteresis is temporary instability in anode current after light and voltage
are applied.
(1)Current Hysteresis
The tube is operated at 750 volts with an anode current of 1 micro-ampere for
5 minutes. The light is then removed from the tube for a minute. The tube is
then re-illuminated by the previous light level for a minute to measure the
variation.
(2)Voltage Hysteresis
The tube is operated at 300 volts with an anode current of 0.1 micro-ampere
for 5 minutes. The light is then removed from the tube and the supply voltage
is quickly increased to 800 volts. After a minute, the supply voltage is then
reduced to the previous value and the tube is re-illuminated for a minute to
measure the variation.
Hysteresis =
100(%)
lmax.
li
lmin.
Figure 2:
Anode Luminous Sensitivity and Gain
Characteristics
Figure 3:
Typical Time Response
Figure 4:
Typical Temperature Coefficient of Anode
Sensitivity
Figure 5:
Typical Temperature Characteristic of Dark
Current (at 1000V, after 30minute storage)
TPMSB0002EA
TPMSB0003EB
TIME
max.
l
min.
l
i
A
C
0
5
6
7 (minutes)
200
300
500
700
1000
10
–2
A
1500
G
TPCLANOD ENIIIY
TYPCA GAN
MNMUMANOD ENIIIY
10
–1
10
0
10
1
10
2
10
3
10
4
10
2
10
3
10
4
10
5
10
6
10
7
10
8
SUPPLY VOLTAGE (V)
TPMSB0004EB
300
500
700
1000
1500
SUPPLY VOLTAGE (V)
T
1
2
4
6
8
10
20
40
60
80
100
RISE TIME
TRANSIT TIME
TPMSB0005EA
–
40
–
20
0
+20
TEMPERATURE (
°
C)
160
80
20
0
A
140
100
+40
120
60
40
800nm
600nm
400nm
TPMSB0006EA
–
40
–
20
0
+20
TEMPERATURE (
°
C)
100
1
0.01
A
+40
10
0.1
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|---|---|
| R928_06 | 制造商:HAMAMATSU 制造商全稱:Hamamatsu Corporation 功能描述:PHOTOMULTIPLIER TUBES |
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