This detector is a four-stage, magnetically-focused image intensifier, coupled via a lens to a plumbicon television camera tube.
A plumbicon is the development of the vidicon television camera tube in which the photosensitive material is lead oxide.
A plumbicon is a registered trademark of Philips for its Lead Oxide (PbO) target vidicons or camera tubes in which a charge-density patterns are formed by photoconduction and stored on photoconductor surfaces that are scanned by electron beams; usually, of low-velocity electrons; used chiefly in industrial television cameras.
The resulting emitted electrons are accelerated within the evacuated tube by a very high voltage.
Image intensifiers are used in many instruments; such as, cameras, spectrographs, and acquisition and guidance systems.