Editing Image intensifier (section)

===ATG (auto-gating)===
Auto-gating is a feature found in some image intensifier tubes. Auto-gated tubes rapidly shut off current to the photocathode and microchannel plate at a high frequency that is imperceptible to the user. By varying the duty cycle, it is possible to reduce the overall "ON" time of the image intensifier, while still presenting an image to the user. Auto-gating allows the tube to be operated during brighter conditions, for example when observing bright flashes on the battlefield, or in conditions of higher ambient light, while maintaining image resolution.
<ref>Characterization of domestic and foreign image intensifier tubes {{doi|10.1117/12.2015462}}</ref>