p-n Junction controlled field emitter array cathode
Particle accelerator
Patch antenna and method for making the same
Photocathodes
Photographic master for use in screening a color cathode ray tub
Photosensor having impurity concentration gradient
Plasma assisted modified betatron
Projection tube having an insulating layer of magnesium oxide an
Proton source
Pulsed particle beam vacuum-to-air interface