Photomultiplier tube with inverting dynode plate
Photomultiplier tube with multi-layer anode and final stage dyno
Photomultiplier tube, radiation detecting device, and...
Photomultiplier with lens element
Photomultiplier with plural photocathodes
Photonic cathode ray tube
Polycrystal diamond thin film and photocathode and electron...
Position sensitive photomultiplier
Protection of photocathodes with thin film of cesium bromide
Proximity focused image intensifier having a glass spacer ring b