Speaker
Description
A new high-precision timing sensor — the Radio-Frequency Photo Multiplier Tube (RF PMT) — has been recently developed and tested. The detector performs circular scanning of photoelectrons or secondary electrons using a dedicated radio-frequency (RF) deflector operating at 500–1000 MHz. The scanned electrons are detected by a position-sensitive system comprising dual chevron microchannel plates and a delay-line anode. Thus, the arrival time of each electron is determined from its hit position on a circular image. A time resolution of 10 picoseconds, along with excellent stability, has been demonstrated for single electrons, and further improvements toward a few-picosecond resolution are anticipated in the near future. Current and potential applications of the detector will be discussed.
