R7639 Datasheet, PDF (1/4 Pages) Hamamatsu Corporation – PHOTOMULTIPLIER TUBE

PRELIMINARY DATA
JUN. 2000
PHOTOMULTIPLIER TUBE
R7639
Quantum Efficiency: 40 % at 155 nm
High Sensitivity Solar Blind Photocathode (115 nm to 230 nm)
28 mm (1-1/8 Inch) Diameter, 9-Stage, Side-On Type
FEATURES
Spectral Response ..................... 115 nm to 230 nm
Cathode Sensitivity
Radiant at 155 nm ......................... 50 mA/W Typ.
Quantum Efficiency at 155 nm ..................... 40 %
Anode Sensitivity (at 1000 V)
Radiant at 155 nm ................... 1.5 × 10⁵ A/W Typ.
APPLICATIONS
Emission Spectroscopy
VUV Spectrophotometer
TPMSF0083
GENERAL
Parameter
Spectral Response
Wavelength of Maximum Response
Photocathode
Material
Minimum Effective Area
Window Material
Dynode
Secondary Emitting Surface
Structure
Number of Stages
Direct Interelectrode Capacitances
Anode to Last Dynode
Anode to All Other Electrodes
Base
Weight
Suitable Socket
Description/Value Unit
115 to 230
nm
155
nm
Diamond
—
3 × 12
mm
MgF2
—
Sb-Cs
—
Circular-cage
—
9
—
4
pF
6
pF
11-pin base
JEDEC No.B11-88
45
g
E678-11A(option) —
Figure 1: Typical Spectral Response
TPMSB0172EB
100
CATHODE RADIANT
SENSITIVITY
10
QUANTUM
EFFICIENCY
1
0.1
100 120 140 160 180 200 220 240 260 280 300
WAVELENGTH (nm)
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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