Data Acquisition in CT Scanners

These flashcards cover key vocabulary and concepts from the lecture notes on data acquisition in CT scanners.

Gantry

The ring-shaped part of the CT scanner containing hardware for creating and detecting X-rays.

Slip Rings

Electromechanical devices that allow continuous electrical power and communication in modern CT scanners.

High-frequency generators

Common generators used in CT scanners to produce high voltage for the X-ray beam.

Cooling system

Components of a CT scanner that dissipate heat generated during operation.

Filtration

Compensating filters that shape the X-ray beam to reduce radiation dose and minimize artifacts.

Collimation

The process of reducing scatter radiation to improve image quality and control slice thickness.

Solid-State Crystal Detectors

Detectors that absorb nearly 100% of X-ray photons and are used in CT to improve spatial resolution.

Dual-Source CT

A CT system with two sets of X-ray tubes and detectors for improved imaging capabilities.

Helical Scanning

A scanning method where the X-ray tube rotates continuously, allowing for volume data acquisition.

Pitch

Refers to the table movement during scanning, affecting slice overlap and image acquisition efficiency.