The portion of the x-ray unit that contains the master switch, indicator light, selector buttons, and exposure button is called what?

• A. Control Panel
• B. Anode
• C. Cathode
• D. Dental Radiography

Answer: (A)

The control panel is where you operate the x-ray unit. It contains the master switch to turn the machine on and off, the indicator light that shows when power is on, the selector buttons to adjust settings, and the exposure button to initiate the radiographic shot. This is the part you interact with to set exposure factors and start images. The anode and cathode are internal parts of the x-ray tube inside the tube head, not the area used to control or initiate exposures. Dental radiography refers to the practice of taking dental x-rays, not a control surface. So the described portion is the control panel.