A control system for an electric machine, the control system including a position sensor and a drive controller. of the photosensitive layer is 3106 or more. The multileaf collimator may include a plurality of leaves that are adjustable along a displacement direction for the absorption of rays propagated along a direction of radiation, with opposing leaves relative to the displacement direction with front faces oriented toward each other being displaceable into a closed position. A substantial portion of the heap is heated to at least 50\xb0 C. In one embodiment, three software-implemented switches are provided\u2014one for handling uncompressed source data streams, one for handling compressed source data streams, and one for processing the output of the first two switches to provide the single compressed data stream. The resin composition comprises 100 parts by weight of a glass fiber reinforced polycarbonate resin; and about 0.