Object
Second Containment Beam
Geordi La Forge details the second containment beam that the Transporter Chief initiated during the Nervala IV evacuation. This beam reflected back to the planet's surface, its phase differential interacting with the original transporter stream to produce duplicate Riker from the same quantum pattern. Picard, Riker, Data, and Crusher absorb the explanation in the Observation Lounge, grasping how it forged two distinct individuals over eight years.
2 appearances
Purpose
Stabilize transporter matter stream; in this case, reflected to create phase-shifted duplicate during emergency beam-out
Significance
Triggers Riker identity crisis, forces crew to treat both Rikers as valid, complicates mission to research station by requiring Lieutenant Riker's expertise after psychological evaluation
Appearances in the Narrative
When this object appears and how it's used