i think that since missiles go so fast, there would have to be at least 4 ions that combine or 2 separate ions to destroy 100% of missiles. Otherwise, only a few would get destroyed, depending on the angle they were coming at to the beam, depending on how long they are in the beam.
maybe emp missiles that are destroyed can send a surge back through the beam to the ion, stunning it for a few seconds
projectiles that are big and heavy (cannons) or extremely fast (railguns) probably won’t be affected much unless you have a lot of anti projectile ions
this could be a good anti mine weapon, maybe a bonus to mines, causing them to detonate as soon as the beam crosses them.
The ions are meant to be stationary, but in a pinch could be used to attack. They are too slow to target individual projectiles. They’re meant to be aimed to cover a certain part of your ship, or to extend a zone that will destroy missiles that try to go around your ship to target the back.
Thinking about the laser beams, lasers and ion beams would pass through cleanly.
Or an even more interesting idea is that laser beams actually gain energy from going through the beam. This could be utilized on both sides. Like if you have an ion beam in front of your dlbs, they’ll do extra damage, but take extra damage from laser beams. Like shooting arrows through lava.
If flak is attacking where an anti projectile ion is covering, i think it should be completely absorbed by the ion, as the projectiles are very small.