R955P - PHOTOMULTlPLlER TUBES

/ Value Unit Spectral R928 185 to 900 nm response R955 160 to 900 nm Wavelength of maximum response 400 nm Photocathode MateriaI Minimum effective area Multialkali 8 × 24 mm Window R928 UV glass material R955 Quartz Dynode Structure Number of s

• 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 mA/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.