What is the purpose of the lead strip around the top of the radiographic table?

• A. Absorbs scatter radiation.
• B. Increases table height.
• C. Improves image resolution.
• D. Holds the Bucky tray.

Answer: (A)

Lead shielding around the top of the radiographic table is there to absorb scatter radiation. When x-rays pass through the patient, some photons scatter in different directions. This scattered radiation adds fog to the image and reduces contrast, making anatomy harder to see. The lead strip catches many of those scattered photons before they reach the image receptor and the operator, improving image quality and reducing exposure. It isn’t involved in changing table height or holding the Bucky tray, and while reducing scatter can help the perceived image clarity, its primary purpose is shielding and contrast improvement.