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R7725 Schematic ( PDF Datasheet ) - HAMAMATSU

Teilenummer R7725
Beschreibung PHOTOMULTIPLIER TUBE
Hersteller HAMAMATSU
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Gesamt 2 Seiten
R7725 Datasheet, Funktion
PHOTOMULTIPLIER TUBE
R7723, R7724, R7725
For Scintillation Counting, Fast Time Response
51mm (2 Inch) Diameter, Bialkali Photocathode, Head-on Type
SPECIFICATIONS
GENERAL
Parameter
Spectral Response
Wavelength of Maximum Response
Photocathode
MateriaI
Minimum Effective Area
Window Material
Dynode
Structure
Number of Stages
Base
SuitabIe Socket
Operating Ambient Temperature
Storage Temperature
Description / Value
300 to 650
420
Bialkali
46
Borosilicate glass
Linear-focused
8 (R7723) / 10 (R7724) / 12 (R7725)
21-pin glass base
E678-21C (supplied)
-30 to +50
-80 to +50
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter
Supply Between Anode and Cathode
Voltage Between Anode and Last Dynode
Average Anode Current
Value
2000
500
0.2
CHARACTERISTICS (at 25 °C)
Cathode
Sensitivity
Parameter
Luminous (2856 K)
Quantum Efficiency at 420 nm
Blue Sensitivity Index (CS 5-58)
Min.
60
R7723
Typ.
90
26
10.5
Max.
Min.
60
Anode Sensitivity Luminous (2856 K)
10 90 —
Gain
— 1.0 × 106
Anode Dark Current (after 30 min storage in darkness) — 3 20
Time
Response
Anode Pulse Rise Time
Electron Transit Time
Transit Time Spread (T.T.S.)
1.7
23
1.1
Pulse
±2 % Deviation
— 80 —
Linearity
±5 % Deviation
— 100 —
30
NOTE: Anode characteristics are measured with voltage distribution ratios shown below:
R7724
Typ.
90
26
10.5
300
3.3 × 106
6
2.1
29
1.2
60
90
Max.
40
Min.
60
100
R7725
Typ.
90
26
10.5
600
6.7 × 106
9
2.5
35
1.3
40
80
Max.
60
Unit
nm
nm
mm
°C
°C
Unit
V
V
mA
Unit
µA/lm
%
A/lm
nA
ns
ns
ns
mA
mA
VOLTAGE DlSTRlBUTlON RATlO AND SUPPLY VOLTAGE
R7723
Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 P
Ratio
412 111 121
R7724
Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 P
Ratio
412 111 111 2 1
R7725
Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 Dy11 Dy12
Ratio
412 111 111 1 1 2 1
SuppIy Voltage: 1750 V, K: Cathode, Dy: Dynode, P: Anode
P
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.
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. ©2015 Hamamatsu Photonics K.K.





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