What is the tubehead?

• A. The part of the x-ray unit that contains the x-ray tube, the high-voltage and low-voltage transformers, and insulating oil
• B. The base that supports the patient during imaging
• C. The control panel for exposure factors
• D. The protective lead apron

Answer: (A)

The tubehead is the part of the X-ray unit that contains the X-ray tube itself along with the essential power components that drive it. Inside you’ll find the x-ray tube, the high‑voltage transformer that provides the energy to create X-rays, the low‑voltage transformer that heats the filament to emit electrons, and insulating oil that surrounds and cools the tube while insulating it electrically. This assembly is what actually produces and directs the X-ray beam toward the patient. By contrast, the base supports the patient, the control panel is where exposure factors are set, and the protective lead apron provides shielding.