The photoconductive target in a TV camera's pick-up tube creates what signal type?

The photoconductive target in a TV camera's pick-up tube essentially works by generating a charge in response to light exposure. When light photons strike the photoconductive material, they contribute to the release of electrons, resulting in a change in the conductivity of that material. This change in conductivity creates a proportional electron charge that is localized at the area corresponding to the intensity and position of the light hitting the target.

This charge is then read by the system to create an image. The signal produced at each position on the photoconductive target is directly related to the light intensity, and this relationship is critical for the formation of the video signal that visually represents the captured image. The concept emphasizes the role of charge generation in forming a visual output based on light input. Thus, the assertion about a proportional electron charge at a specific position accurately reflects the fundamental operation of the photoconductive target in the process of image creation in a TV camera's systems.