R4220 Datasheet | Hamamatsu Corporation

FEATURES Spectral Response 185 to 710 nm High Cathode Sensitivity Luminous 100 A/lm Radiant at 410nm 70 m A/W High Anode Sensitivity (at 1000V) Luminous 1200A/lm Radiant at 410nm 8.4 105 A/W Low Dark Current 0.2n A Low Dark Counts (R4220P) 10 cps Hamamatsu R4220 features extremely high cathode sensitivity, high Gain, and low dark current. Variant tube (R4220P) specially selected for photon counting application is also available. The R4220 is useful for fluorescence, chemiluminescence, Raman spectroscopy and low light level detection. GENERAL Parameter Spectral Response Wavelength of Maximum Response Photocathode Materia I Minimum Effective Area Window Material Dynode...