PHOTOMULTlPLlER TUBES
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 H...
Hamamatsu Corporation