R4220 Datasheet | Hamamatsu Corporation

PHOTOMULTlPLlER TUBES R4220 R4220P(For Photon Counting) Very High Cathode Sensitivity with Low Noise Photocathode Features Spectral Response ................................... 185 to 710 nm High Cathode Sensitivity Luminous ...................................................... 100 A/lm Radiant at 410nm ............................................ 70 mA/W High Anode Sensitivity (at 1000V) Luminous ....................................................... 1200A/lm Radiant at 410nm ..................................... 8.4 105 A/W Low Dark Current .................................................... 0.2nA Low Dark Counts (R4220P) ................................... 10 cps Hamamatsu R4220...