The alternating voltage switches the charge to negative on the accelerating electrode. While the charge on the electrode is positive, the ions are attracted to the negative charge on the electrode, and thus bunched around it. This chamber has an electrode with an alternating electric charge of up to 1,000,000,000 (109) volts inside it. In this kind of ion accelerator, the negative ions are released inside a cylindrical ion acceleration chamber. The weapon accelerates anions uses a travelling wave type particle accelerator. When hydrogen gains electrons it forms anions. The weapon ionizes hydrogen gas by either stripping an electron off of each hydrogen atom, or by allowing each hydrogen atom to capture an extra electron. The weapon fires a particle beam of ionised atoms. The Weapon/Anti-Ship Model 21 Directed Ion Cannon is a experimental UNSC energy weapon, being mounted on warships. We blasted our MAC turret right into it's nose plasma turret and it just about blew off the whole entire prow section.' ―Lieutenant Leonard Iridan It fired one of them again, blew out its wing section, screwed it with EMP. Then, the UNSC Thunder Lord fired off both its Ion Cannons, took that bastard's shields off straight away.
The Assault Carrier swung right around the Zeus and was coming on our flank, our MAC turret wouldn't dent its shields.
