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PDF R2078 Data sheet ( Hoja de datos )
| Número de pieza | R2078 | |
| Descripción | PHOTOMULTIPLIER TUBE | |
| Fabricantes | Hamamatsu Corporation | |
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PHOTOMULTIPLIER TUBE
R2078
Extremely Improved Solar Blind Photocathode for Aerospace and
General Photometric Applications, 25mm (1 Inch) Diameter,
Ruggedized Low Profile Tube, Cs-Te Photocathode, 10-Stage, Head-on
FEATURES
High Quantum Efficiency ..................................... 14% at 254nm Typ.
Ruggedized, Low Profile Structure ..................... 20g's vibration
43mm in bulb length
GENERAL
Parameter
Spectral Response
Wavelength of Maximum Response
Photocathode
Material
Minimum Useful Diameter
Window Material
Dynode
Structure
Number of Stages
Base (temporary)
Suitable Socket
Description/Value
160 to 320
240
Cs-Te
21
Fused silica
Circular cage
10
12-pin base JEDEC No. B12-13
E678-12A (supplied)
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter
Supply Voltage
Average Anode Current
Between Anode and Cathode
Between Anode and Last Dynode
Value
2000
300
0.015
CHARACTERISTICS (at 25°C)
Parameter
Cathode Sensitivity
Radiant at 254nm
Radiant at 254nm
Anode Sensitivity
Radiant at 365nm
Radiant at 550nm
Gain
Anode Dark Current (after 30 min. storage in darkness)
Time Response
Anode Pulse Rise Time
Electron Transit Time
Min.
20
2.0 × 103
—
—
1.0 × 105
—
—
—
Typ.
29
1.5 × 104
1.5
1.6 × 10-2
5.0 × 105
15
1.5
14
Max.
—
—
—
—
—
100
—
—
VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE
Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10
Ratio
31111111111
Supply Voltage: 1500Vdc, K: Cathode, Dy: Dynode, P: Anode
P
Unit
nm
nm
—
mm dia.
—
—
—
—
—
Unit
Vdc
Vdc
mA
Unit
mA/W
A/W
A/W
A/W
—
pA
ns
ns
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 HAMAMATS U 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. © 1998 Hamamatsu Photonics K.K.
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