Final answer:
The slip ring on continuous rotation CT scanners eliminates the need for the reversal of gantry frame rotation.
Step-by-step explanation:
The slip ring on continuous rotation CT scanners eliminates the need for the reversal of gantry frame rotation. The slip ring is a conducting ring that allows the transfer of electrical signals and power between stationary and rotating parts of the CT scanner. It helps maintain a continuous electrical connection, allowing the gantry to rotate continuously without the need for reversing its direction.