R972 Datasheet, PDF (1/2 Pages) Hamamatsu Corporation – PHOTOMULTIPLIER TUBE

PHOTOMULTIPLIER TUBE
R972
For VUV Detection, 19 mm (3/4 Inch) Diameter, 10-stage,
Head-On Type, Solar Blind Response (115 nm to 200nm)
GENERAL
Parameter
Spectral Response
Wavelength of Maximum Response
Photocathode
Window Material
Material
Minimum Useful Size
Dynode
Base
Suitable Socket
Structure
Number of Stages
Description/Value
115 to 200
140
Cs-I
14
MgF2
Linear focused
10
12 pin base JEDEC No. B12-43
E678-12A
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter
Supply Voltage
Between Anode and Cathode
Between Anode and Last Dynode
Average Anode Current
Ambient Temperature
Value
2250
250
0.01
-80 to +50
CHARACTERISTICS (at 25 °C)
Parameter
Cathode Sensitivity
Radiant at 122 nm
Quantum Efficiency at 130 nm
Anode Sensitivity
Radiant at 122 nm
Gain
Anode Dark Current (after 30 min. storage in darkness)
Time Response
Anode Pulse Rise Time
Electron Transit Time
Min.
—
—
2.0 × 10²
—
—
—
—
Typ.
12
1.3
1.2 × 10³
1.0 × 10⁵
0.03
1.6
17
Max.
—
—
—
—
0.05
—
—
Unit
nm
nm
—
mm dia.
—
—
—
—
—
Unit
V dc
V dc
mA
°C
Unit
mA/W
%
A/W
—
nA
ns
ns
VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE
Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 P
Ratio
1.5 1
1
1
1
1
1
1
1
1
1
Supply Voltage: 2000 V dc, K: Cathode, Dy: Dynode, P: Anode
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. ©2000 Hamamatsu Photonics K.K.