Ion cannon is a sci-fi weapon that emits ion beams or ion clusters to attack. Different works have certain differences in specific principles and details. Directed energy weapons such as ion cannon will suffer serious energy loss in the atmospheric environment, so ion cannon is common in sci-fi works with space as the background, and is also used as a space-based directed energy weapon in other works.
Attack mode
Ion cannon's ammunition is a large number of hydrogen ions without electrons in the universe. These hydrogen ions come from solar radiation. When the high-energy particles produced by solar radiation pass around ion cannon, ion cannon will collect them and emit them through the launcher.
When ion cannon attacks the ground, it emits a large number of electron beams to "soften" the atmosphere and prepare for the next attack, which will also lead to stormy weather in the shooting area (which can be seen in Command and Conquer: Rebels), and then it will emit hydrogen ion balls with high energy band, causing large-scale damage.