Slip Ring Technology In Ct Radiology

A slip ring is an electromechanical device that allows the transmission of power and electrical signals from a stationary to a rotating structure.

Slip ring technology in ct radiology.

Third and fourth generation scanner technologies are both used in many health care. Spiral ct can achieve improved image resolution for a given radiation dose compared to individual slice acquisition. All power and control signals from the stationary parts of the scanner system are communicated to the rotating frame through the slip ring. Slip rings are electromechanical devices consisting of circular electrical conductive rings and brushes that transmit electrical energy across a moving interface.

Slip ring tecnology 2. Used in all modern ct machines. This is known as spiral or helical ct. Other ct technologies have been adapted to third and fourth generation scanners including.

Slip ring technology enables production of improved images and better diagnostic functionality of the machine. Continuous rotation of the tube and detectors coupled with continuous movement of the table and patient through the gantry are the basic components of spiral helical ct figure 16 5. With the ever increasing data speed requirements of multi slice machines an alternative method of handling data across the rotating interface is required. Helical spiral ct image acquisition was a major advance on the earlier stepwise stop and shoot method.

Most modern hospitals currently use spiral ct scanners. Slip ring technology made helical acquisition possible. From the perspective of the patient the x ray beam from the ct traces a helical path. Located inside the gantry the slip ring technology allowed the tube to continue to rotate without the need to rewind.

It can improve mechanical performance simplify system operation and eliminate damage prone wires dangling from movable joints. Slip rings are electromechanical devices consisting of circular electrical conductive rings and brushes that transmit electrical energy across a moving interface. Helical spiral image acquisition. Basics the transmission of power across a large free inner bore is one of the key factors in a rotating system.

A slip ring can be used in any electromechanical system that requires rotation while transmitting power or signals. Dual energy ct scanning. In the earliest ct scanners this data transmission task was accomplished with a slip ring i e sliding electrical contacts. Large diameter slip rings are ideal for better working of the computed tomography machines.

With helical ct the patient is moved through a rotating x ray beam and detector set.