... tubes, borosilicate glass, double-alkali photocathode Diameter of 28.5mm(1.12 inch), nine stage ... , borosilicate glass, double-alkali photocathode Features: Diameter of 28.5mm(1.12 inch), nine stage, ... C ):Anode sensitivity30A/lmAnode dark current20nACathode Sensitivitylumions50uA/lm(min) 100ua/lm(type) Bule Sensitivity Index--Red Sensitivity Index--Gain3x105Pulse rise time4ns Diameter of ...