- "We are not a warring people, but our defensive technology is far more advanced than that of the Goa'uld."
- ―Narim
Ion cannons were powerful Tollan weapons used for planetary defense against an incoming orbital attack.
Overview
- "The ion beam technology is very advanced. Unfortunately, it's so advanced that backward engineering one of these things for mass production is well beyond us."
- ―Samantha Carter
The control panel of an ion cannon.
While the Tollan are not a militaristic people, they are also not pacifist and will destroy any vessel that poses a threat to their planet. Tollana was protected by a planetary network of cannons, which automatically tracked and destroyed threatening ships in orbit. They could also be operated manually, using a small control panel on the side of the weapon.
These giant weapons fire charged particle streams into space from their location on the surface of the planet with deadly accuracy, and were able to destroy Ha'tak vessels in one or two shots until Anubis used his ascended knowledge and Ancient technology to upgrade his Ha'tak shields, making them immune to the ion cannons.
The targeting ranges of these weapons had intentional overlapping fields of fire, so that they could provide additional protection in the event that a single cannon was either disabled or destroyed. Zipacna circumvented this by targeting all the platforms and destroying them simultaneously. However Lya of the Nox and Teal'c stopped this tactic by hiding one weapons platform and firing destroying the attacking Ha'tak. (SG1: "Pretense")
Fire from an Ion Cannon
History
- "The ion cannons are useless if they won't defend against Goa'uld motherships anymore."
- ―Samantha Carter
While these weapons were originally able to destroy a Ha'tak vessel in a single shot, discouraging any attempts of attack by the Goa'uld, they were rendered useless after Anubis was able to tune his shields, making them impervious to the ion cannons and effective to similar particle beam technology, with the limited Ancient knowledge he possessed. (SG1: "Between Two Fires")