SHIPBOARD PHASERS As installed in the Galaxy class, the main shipÕs phasers are rated as Type X, the largest emitters available for starship use. Individual emitter segments are capable of directing 5.1 megawatts. By comparison, the small personal phasers issued to Starfleet crew members are Type I and II, the latter being limited to 0.01MW. Certain large dedicated planetary defense emitters are designated as Type X+, as their exact energy output remains classified. The Galaxy class supports twelve phaser arrays in two sizes, located on both dorsal and ventral surfaces, as well as two arrays for lateral coverage. A typical large phaser array aboard the USS Enterprise, such as the upper doral array on the Saucer Module, consists of two hundred emitter segments in a dense linear arrangement for optimal control of firing order, thermal effects, field halos, and target impact. Groups of emitters are supplied by redundant sets of energy feeds from the primary trunks of the electro plasma system (EPS), and are similarly interconnected by fire control, thermal management, and sensor lines. The visible hull surface configuration of the phaser is a long shallow raised strip, the bulk of the hardware submerged within the vehicle frame. In cross section, the phaser array takes on a thickened Y shape, capped with a trapezoidal mass of the actual emitter crystal and phaser- transparent hull antierosion coatings. The base of an array segment sits within a structural honeycomb channel of duranium 235 and supplied with supersonic regenerative LNÛ cooling. The complete channel is thermally isolated by eight hundred link struts to the tritanium vehicle frame. The first stage of the array segments is the EPS submaster flow regulator, the principal mechanism controlling phaser power levels for firing. The flow regulator leads into the plasma distribution manifold (PDM), which branches into two hundred supply conduits to an equal number of prefire chambers. The final stage of the system is the phaser emitter crystal. Æ