R7311 Datasheet, PDF (1/2 Pages) Hamamatsu Corporation – PHOTOMULTIPLIER TUBES

PRELIMINARY DATA
JUL. 1998
PHOTOMULTIPLIER TUBES
R7311, R7511
For Vacuum Ultraviolet Light Detection
Cs-Te (R7311), Cs-I (R7511) Photocathode, MgF2 Window,
13mm (1/2 Inch) Diameter, 9-stage, Side-on Type
FEATURES
Sensitivity in the Vacuum Ultraviolet Region
R7311.............................................................115 to 320nm
R7511.............................................................115 to 195nm
High Quantum Efficiency (at 121.6nm)
R7311...............................................................17.3% (Typ.)
R7511...............................................................26.5% (Typ.)
High Anode Sensitivity
R7311 (at 200nm)................................3.8 × 10⁵ A/W (Typ.)
R7511 (at 121.6nm).............................5.2 × 10⁴ A/W (Typ.)
APPLICATIONS
Emission Spectroscopy, etc.
TPMSF0077
GENERAL
Parameter
R7311
R7511 Unit
Spectral Response
115 to 320 115 to 195 nm
Wavelength
of Maximum Response
200
130
nm
Photocathode Material
Cs-Te
Cs-I
—
Window Material
MgF2
—
Minimum Effective Area
4×5
mm
Structure
Circular-cage
—
Dynode
Number of Stage
9
—
Material
Sb-Cs
—
Direct
Anode to Dynode No.9
Approx. 1.7
pF
Interelectrode Anode to
Capacitances All Other Electrodes
Approx. 2.0
pF
Base
11-pin base
—
Weight
7
g
Suitable Socket for Base (supplied)
E678-11H
—
Figure 1: Typical Spectral Response
TPMSB0087EB
100
CATHODE
RADIANT
SENSITIVITY
10
1
QUANTUM
EFFICIENCY
R7511
0.1
R7311
0.01
100
200
300
WAVELENGTH (nm)
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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.