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Table 1 Basic parts of the c-arm unit

From: Intraoperative radiation safety in orthopaedics: a review of the ALARA (As low as reasonably achievable) principle

C-arm Part Function
X-ray Tube Source of x-ray beam
Image Intensifier Captures the x-ray beams and converts them into an image that is displayed on the display monitor
Collimator Contains various apertures that determine the size and shape of the x-ray beam
Display Monitor Displays the x-ray