参数资料
型号: R649
厂商: Hamamatsu Photonics
英文描述: PHOTOMULTIPLIER TUBE
中文描述: 光电倍增管
文件页数: 1/2页
文件大小: 38K
代理商: R649
GENERAL
Parameter
Description/Value
300 to 850
420
Multialkali
5
×
8
Borosilicate glass
Box and Grid
12
21-pin glass base
E678-21A (supplied)
Unit
nm
nm
mm
Spectral Response
Wavelength of Maximum Response
Photocathode
Window Material
Dynode
Base
Suitable Socket
Material
Minimum Effective Area
Structure
Number of Stages
PHOTOMULTIPLIER TUBE
R649
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter
Between Anode and Cathode
Between Anode and Last Dynode
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. 1999 Hamamatsu Photonics K.K.
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.
For Photon Counting
51 mm (2 Inch) Diameter, 12-Stage, Multialkali Photocathode, Head-On Type
CHARACTERISTICS (at 25
°
C)
Parameter
Luminous (2856K)
Radiant at 420nm
Red/White Ratio (R-68)
Luminous (2856K)
Radiant at 420nm
Min.
80
100
Unit
μ
A/lm
mA/W
A/lm
A/W
cps
ns
ns
Value
1500
250
0.01
-80 to +50
Unit
Vdc
Vdc
mA
°
C
Supply Voltage
Average Anode Current
Ambient Temperature
Cathode Sensitivity
Anode Sensitivity
Gain
Anode Dark Counts (after 30min. storage in darkness)
Time Response
Anode Pulse Rise Time
Electron Transit Time
120
51
0.2
800
3.4
×
10
5
6.7
×
10
6
200
13
70
350
Typ.
Max.
Supply Voltage: 1000Vdc, K: Cathode, Dy: Dynode, P: Anode
VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE
Electrodes
Ratio
4
0
2.5
1.5
K
Dy1
G
Dy2
Dy3
Dy4
Dy5
1
Dy6
1
Dy7
1
1
Dy8
Dy9
Dy10
1
1
1
1
Dy11
Dy12
P
1
1
NOTE:
Anode characteristics are measured with the voltage distribution ratio shown below.
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