Particle accelerator

Particle accelerators are devices that use electrical fields to propel charged particles at high speeds to contain them. This technology was known to have been used by the Goa'uld Sokar and the Tau'ri.

Sokar's use
The device was once used by Sokar to transmit an image of himself through the Iris of a Stargate. This acceleretor also had the capability to heat up the Iris until it would be destroyed, which would bid him access to Apophis, who was recently captured. Fortunately, Apophis died, and they sent him through the Stargate between Sokar's diallings.

Tau'ri use
Despite the Tau'ri having access to particle accelerators, Sokar's was more powerful. So they engineered a way to recreate Sokar's accelerator, to disintegrate vast amount of soil and rock from Edora, after the Stargate was buried during the fire rain of 2000, which trapped O'Neill.