Nine 12.9 volt batteries connected in series provide approximately 116 volt at full charge. Battery capacity is approximately 20,000 mAs at 100 kVp when fully charged and under specific conditions. Actual mAs capacity depends on the condition of the batteries, use of collimator lamp, electric brakes, rotor, and distance driven.
(tube vertical movement measured at the focal spot)
Drive speed is measured on a smooth, hard and level surface. Speed will be reduced by inclines, carpeted or soft surfaces.
Coefficient of variation of radiation output is less than 0.045 for successive exposures having constant technique factors.
Minimum source to skin distance is limited to more than 30 cm by the skin spacers at the beam exit of the collimator. Full 17" × 17" (43 cm x 43 cm) radiographic coverage at 40" (1.02 mm) source to image distance. Minimum inherent filtration of 2.0 mm aluminum equivalent at 100 kVp.
The average illumination at a distance of 100 cm (39.37") from the focal spot shall be 16 foot candles (170 lux) or more.