R955
R955 is PHOTOMULTlPLlER TUBES manufactured by Hamamatsu Corporation.
FEATURES
GWide spectral response R928 185 nm to 900 nm R955 160 nm to 900 nm
GHigh cathode sensitivity Luminous 250 µA/lm Radiant at 400 nm 74 m A/W
GHigh anode sensitivity Luminous 2500 A/lm Radiant at 400 nm 7.4 × 105 A/W
G28 mm (1-1/8 inch) multialkali side-on standard PMT
APPLICATIONS
GSpectroscopy GBiofluorescence detection GLaser scanning microscope GSemiconductor inspection GEnvionmental monitoring
SPECIFICATIONS
GENERAL
Parameter
Description
/ Value
Unit
Spectral
R928
185 to 900 nm response
160 to 900 nm
Wavelength of maximum response
400 nm
Photocathode
Materia I Minimum effective area
Multialkali 8 × 24
- mm
Window
R928
UV glass
- material
Quartz
- Dynode
Structure Number of stages
Circular-cage 9
- -
Direct
Anode to last dynode
Approx. 4 p F interelectrode Anode to all other capacitances electrodes
Approx. 6 p F
Base
11-pin base
- Weight Operating ambient temperature Storage temperature
Approx. 45...