Characterization of signal-induced artifacts in photomultiplier tubes for underwater lidar a

摘要

Abstract: Many single shot, single pixel underwater LIDAR systems employ high performance photo-multiplier tubes (PMTs) in their receivers. While PMTs offer high gain with a low noise factor, the dynamic range of the output signal is limited by signal induced artifacts. These artifacts include decaying signals with long time constants and short duration `ghost reflection' signals. This paper will characterize the signal-induced artifacts for various single pixel PMTs with different photo-cathode materials and dynode materials.!6