Stun bubble

The Stun bubble was a type of technology developed from Wraith Stunner fields.

Overview
This force field worked by integrating Wraith stunners with that of a Gateship cloaking field which generated a bubble shaped field around the Gateship which expanded outwards. This bubble stunned anyone that was hit by it and remained in effect as long as power was maintained to the generator which prevented anyone from entering or exiting the bubble without getting stunned.

History
The Hybrid Michael Kenmore developed the stun bubble technology after capturing a puddle jumper from Atlantis. He used the jumper to gain access to the city whereupon he activated the stun bubble which knocked everyone out in the control room and prevented the rest of the Atlantis Expedition from entering the command centre.

When Evan Lorne attempted to discover what happened in the control room, he was stunned by the field leaving him unconscious. Later, when Richard Woolsey was attempting to escape from the control tower, he was stunned by the stun bubble. A Hybrid soldier was also forcibly pushed into the stun field by Teyla Emmagan.

The bubble was destroyed when Rodney McKay activated the Stargate, after the gate shield was down, and used the expanding unstable vortex to destroy the generator onboard Michael's gateship.