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Dilithium crystal chamber

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The dilithium crystal chamber (or dilithium regulation chamber or matter-antimatter chamber) was a component in a starship's warp core that contained the dilithium crystals. The chamber included dilithium regulators and antiproton injection seals. Aboard Template:ShipClass starships, this chamber was located on Deck 36. (TNG: "Elementary, Dear Data", "Contagion", "Galaxy's Child", "The Drumhead", "Cost of Living")

The dilithium crystal chamber for the USS Enterprise-D was designed at Outpost Seran T-1 on stardate 40052. (TNG: "Booby Trap")

On the USS Voyager, Crewman Hogan's main responsiblity was to keep the dilithium chamber filled. (VOY: "Alliances")


There are four types of dilithium chamber that have been shown to date. One was that of the Template:ShipClass starship, though exactly which component of the reactor was the chamber itself was never disclosed.

The second was used on board the original configuration of the Template:ShipClass. It was a squat cylinder with a blunt domed top in the center of main engineering. The dilithium crystals were housed in a framework that rose out of one side of the chamber.

The next was the columnar "swirl" chamber, as shown in the Constitution-class refit and the Template:ShipClass. Backstage information, including interviews with Rick Sternbach, indicate that in this model of chamber, the entirety of the column is the reaction chamber, which is lined with a layer of dilithium to moderate the reaction.

The last type is the familiar "ball" or "hub" chamber, shown throughout Star Trek: The Next Generation and Star Trek: Deep Space Nine.

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