This paper reviews recent European developments in imaging photomultiplier technology.
Photocathode technology is well established and has been optimised for a variety of applications; for example, the multi
alkali cathode has deep UV response optimised for Cerenkov detectors in particle physics and also for use in UV laser
inspection systems. Telluride based cathodes have been substantially improved for both astronomical and solar blind
Recent developments have significantly advanced the time resolution limits of MCP based photomultipliers; this is of
particular importance for applications in nuclear physics. The same technology is driving multi-pixel photomultiplier
developments for biological applications.