1. “Video camera tube” Wikipedia urlhttps://en.wikipedia.org/wiki/Video_camera_tube.
2. Photodetectors, 1st ed., Prentice Hall 2000;Donati S.;Chapter
3. L.M.Biberman S.Nudelman:“Photoelectronic Image Devices” vol.1 and 2 Plenum Press New York NY 1973.