Gas discharge processes in metal channel and standard photomultiplier tubes

摘要

The effect of the potential difference at the focusing chamber electrodes of XP2020, FEU-85, FEU-87, and FEU-93 photomultiplier tubes on the intensity of afterpulses resulting from gas discharge processes is investigated. The time distributions of afterpulses in H6780 and R7600U-200 metal channel photomultiplier tubes are also analyzed.