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參數資料
| 型號： | R7449 |
| 廠商： | Hamamatsu Photonics |
| 英文描述： | PHOTOMULTlPLlER TUBE |
| 中文描述： | PHOTOMULTlPLlER管 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 34K |
| 代理商： | R7449 |
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.
2000 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.
PHOTOMULTlPLlER TUBE
R7449
28mm(1–1/8 Inch) Diameter, 11–stage, Bialkali Photocathode,
Head–On Type, Low Dark Current, High Stability
GENERAL
Parameter
Description/Value
185 to 650
420
Bialkali
25
UV glass
Box and Line
11
14–pin glass base
E678–14C (supplied)
Unit
nm
nm
Spectral Response
Wavelength of Maximum Response
Photocathode
MateriaI
Minimum Effective Area
Structure
Number of Stages
mm dia.
Window MateriaI
Dynode
Base
Suitable Socket
Electrodes
Ratio
SuppIy Voltage : 1000Vdc, K : Cathode, Dy : Dynode, P : Anode
K
Dy1
Dy2
Dy3
Dy4
Dy5
Dy6
Dy7
Dy8
Dy9
Dy10
Dy11
P
1
1
1
1
1
1
1
1
1
1
1
1
VOLTAGE DlSTRlBUTlON RATlO AND SUPPLY VOLTAGE
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter
Between Anode and Cathode
Between Anode and Last Dynode
Average Anode Current
Ambient Temperature
Value
1500
250
0.1
-80 to +50
Supply Voltage
Unit
Vdc
Vdc
mA
°
C
CHARACTERISTlCS (at 25
°
C )
Parameter
Luminous (2856K)
Max.
Typ.
95
88
11
200
1.8
×
10
5
2.1
×
10
6
Min.
60
Cathode
Sensitivity
Gain
Anode Dark Current (after 30min. storage in darkness)
Anode Pulse Rise Time
Electron Transit Time
Time Response
Radiant at 420nm
Blue (CS–5–58 filter)
Luminous (2856K)
Radiant at 420nm
A/lm
A/W
μ
A/lm
mA/W
μ
A/lm-b
4
ns
ns
ns
nA
Transit Time Spread (FWHM)
50
Anode
Sensitivity
30
3
2
10
Unit
Anode characteristics are measured with the voItage distribution ratio shown below.
NOTE:
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