Slip ring tecnology 2.
Slip ring technology in ct radiology.
With helical ct the patient is moved through a rotating x ray beam and detector set.
Used in all modern ct machines.
Other ct technologies have been adapted to third and fourth generation scanners including.
Located inside the gantry the slip ring technology allowed the tube to continue to rotate without the need to rewind.
Slip rings are electromechanical devices consisting of circular electrical conductive rings and brushes that transmit electrical energy across a moving interface.
Third and fourth generation scanner technologies are both used in many health care.
All power and control signals from the stationary parts of the scanner system are communicated to the rotating frame through the slip ring.
Slip ring technology made helical acquisition possible.
The 1980s saw a significant advancement in technology with the introduction of slip rings which eliminated the need for a high tension cable supply to the x ray tube and detectors and allowed the x ray tube to rotate continuously in one direction around the patient.
The use of slip ring technology in ct scans has dramatically improved the accuracy and efficacy of this diagnostic scanning process.
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.
Helical spiral image acquisition.
Slip ring technology in conventional ct scanning there was a paused between each gantry rotation.
Helical spiral ct image acquisition was a major advance on the earlier stepwise stop and shoot method.
It can improve mechanical performance simplify system operation and eliminate damage prone wires dangling from movable joints.
A slip ring is an electromechanical device that allows the transmission of power and electrical signals from a stationary to a rotating structure.
Slip rings are electromechanical devices consisting of circular electrical conductive rings and brushes that transmit electrical energy across a moving interface.
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.
From the perspective of the patient the x ray beam from the ct traces a helical path.
With the ever increasing data speed requirements of multi slice machines an alternative method of handling data across the rotating interface is required.
Basics the transmission of power across a large free inner bore is one of the key factors in a rotating system.
Slip ring technology enables production of improved images and better diagnostic functionality of the machine.
Most modern hospitals currently use spiral ct scanners.
A slip ring can be used in any electromechanical system that requires rotation while transmitting power or signals.
