PHOTOMULTlPLlER TUBES
R3788, R4332
High Sensitivity, Bialkali Photocathode
28mm (1-1/8 Inch) Diameter, 9-Stage, Side-On Type
FEATURES
Spectral Response
R3788 .................................................... 185 to 750 nm
R4332 ..................................................... 160 to 750 nm
High Cathode Sensitivity
Luminous ........................................... 120 A/lm Typ.
Radiant at 420nm .................................. 90mA/W Typ.
Quantum Efficiency at 210nm ......... 40% Typ. (R4332)
High Anode Sensitivity (at 1000V)
Luminous ............................................... 1200A/lm Typ.
Radiant at 420nm ............................ 9.0 105 A/W Typ.
APPLICATIONS
Fluorescence Spectrophotometers
Emission Spectrophotometers
Atomic Absorption Spectrophotometers
GENERAL
Figure 1: Typical Spectral Response
Parameter
Description
Unit
TPMSB0081EA
Spectral Response
100
CATHODE RADIANT
SENSITIVITY
R3788
R4332
185 to 750
160 to 750
nm
nm
R4332
Wavelength of Maximum Response
420
nm
QUANTUM
EFFICIENCY
Photocathode
MateriaI
10
Bialkali
Minimum Effective Area
8
24
mm
Window Material
R3788
R3788
UV glass
1
R4332
Fused silica
Dynode
Bialkali
Circular-cage
9
Secondary Emitting Surface
Structure
Number of Stages
0.1
0.01
Direct Interelectrode Capacitances
Anode to Last Dynode
Anode to All Other Electrodes
4
6
pF
pF
11-pin base
JEDEC No. B11-88
Base
100
200
300
400
500
600
700
800
Weight
45
g
WAVELENGTH (nm)
E678–11A (option)
E717–21(option)
SuitabIe Socket
SuitabIe Socket Assembly
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. © 1994 Hamamatsu Photonics K.K.