Photoelectric tubes, namely, photomultipliers; low light-level images intensifier tubes; slot tubes, namely, image intensifier tubes; image dissector tubes; photoelectric cells; diodes and triodes; electron multipliers; microchannel plates; optical components and interfaces for applying glass drawing technologies and providing signal transfer; neutron and gamma ionizing radiation, scintillation, detection, radiation sensing detectors; electronic equipment associated with these technologies, n...