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參數(shù)資料
| 型號(hào)： | R3896 |
| 廠商： | Hamamatsu Photonics |
| 英文描述： | PHOTOMULTlPLlER TUBE |
| 中文描述： | PHOTOMULTlPLlER管 |
| 文件頁(yè)數(shù)： | 2/4頁(yè) |
| 文件大小： | 65K |
| 代理商： | R3896 |
GENERAL
Parameter
Description/Value
185 to 900
450
Unit
nm
nm
Spectral Response
Wavelength of Maximum Response
Photocathode
MateriaI
Minimum Effective Area
Structure
Number of Stages
4
6
pF
pF
Anode to Last Dynode
Anode to All Other Electrodes
Multialkali
8 24
mm
Window Material
Weight
SuitabIe Socket
g
Approx. 45
E678–11A (option)
Dynode
Direct Interelectrode Capacitances
Base
Supply Voltage
Between Anode and Cathode
Between Anode and Last Dynode
1250
250
0.1
Vdc
Vdc
mA
Average Anode Current
A
Ambient Temperature
UV glass
Circular-cage
9
JEDEC No. B11-88
CHARACTERISTlCS (at 25 )
Parameter
NOTES
A:
Averaged over any interval of 30 seconds
maximum.
The light source is a tungsten filament lamp
operated at a distribution temperature of 2856K.
Supply voltage is 100 volts between the cathode
and all other electrodes connected together as
anode.
The value is cathode output current when a blue
filter(Coming CS-5-58 polished to 1/2 stock
thickness) is interposed between the light source
and the tube under the same condition as Note B.
Red/White ratio is the quotient of the cathode
current measured using a red filter(Toshiba R-68)
interposed between the light source and the tube
by the cathode current measured with the filter
removed under the same conditions as Note B.
Measured with the same light source as Note B
and with the voltage distribution ratio shown in
Table 1 below.
Cathode Sensitivity
Luminous
B
Anode Dark Current
F
(after 30min. storage in the darkness)
Anode Current Stability
J
Current Hysteresis
Voltage Hysteresis
B:
C:
D:
E:
Radiant at 254nm
Red/White Ratio
D
Blue
C
0.4
15
450nm
633nm
852nm
90
73
5.0
450nm
633nm
852nm
24.8
14.3
0.73
Anode Pulse Rise Time
G
Electron Transit Time
H
Transit Time Spread (TTS)
I
Time Response
Electrodes
K
Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9
P
Ratio
1
1
1
1
1
1
1
1
1
1
SuppIy Voltage : 1000Vdc, K : Cathode, Dy : Dynode, P : Anode
Quantum Efficiency at 254nm
29.3
Gain
E
9.5 10
6
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter
Value
Unit
PHOTOMULTlPLlER TUBE R3896
475
60
525
Table 1:Voltage Distribution Ratio
–80 to +50
Typ.
Min.
Max.
Unit
Anode Sensitivity
Luminous
E
2.2
22
1.2
0.1
1.0
%
%
mA/W
mA/W
mA/W
mA/W
A/lm-b
ns
ns
ns
A/lm
%
%
%
%
nA
3000
5000
50
10
A/lm
F:
G:
H:
I:
J:
Measured with the same supply voltage and
voltage distribution ratio as Note E after removal of
light.
The rise time is the time for 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.
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 amplitube. In
measurement, the whole photocathode 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 microampere 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.
TPMSB0002EA
TIME
max.
l
min.
l
i
A
C
0
5
6
7 (minutes)
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