R8486 Datasheet, PDF (1/4 Pages) Hamamatsu Corporation – PHOTOMULTIPLIER TUBE

PRELIMINARY DATA
FEB. 2001
PHOTOMULTIPLIER TUBES
R8486, R8487
For Vacuum Ultraviolet Light Detection
Cs-Te (R8486), Cs-I (R8487) Photocathode, MgF2 Window,
28 mm (1-1/8 Inch) Diameter, 9-stage, Side-on Type
FEATURES
Sensitivity in the Vacuum Ultraviolet Region
R8486.............................................................115 to 320 nm
R8487.............................................................115 to 195 nm
High Quantum Efficiency (at 121.6 nm)
R8486...............................................................22.5 % (Typ.)
R8487...............................................................26.0 % (Typ.)
High Anode Sensitivity
R8486 (at 254 nm)................................5.2 × 10⁵ A/W (Typ.)
R8487 (at 121.6 nm).............................1.0 × 10⁵ A/W (Typ.)
APPLICATIONS
Emission Spectroscopy, etc.
PMSF0093
GENERAL
Parameter
R8486
R8487 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
8 × 12
mm
Structure
Circular-cage
—
Dynode
Number of Stage
9
—
Material
Sb-Cs
—
Direct
Anode to Dynode No.9
Approx. 4
pF
Interelectrode Anode to
Capacitances All Other Electrodes
Approx. 6
pF
Base
11-pin base JEDEC No. B11-88 —
Weight
45
g
Suitable Socket for Base (option)
E678-11A
—
Figure 1: Typical Spectral Response
TPMSB0199EA
100
CATHODE
RADIANT
SENSITIVITY
10
1 _QUANTUM
EFFICIENCY
R8487
0.1
R8486
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. _© 2001 Hamamatsu Photonics K.K.