What is the primary function of the Bucky tray on a radiographic table?

• A. Holds the film cassette and can be moved to either end of the table as needed.
• B. Provides patient support.
• C. Generates X-rays.
• D. Measures exposure time.

Answer: (A)

The Bucky tray is the part of the radiographic table that holds the film cassette (or digital detector) and can be slid to either end of the table as needed. This keeps the cassette properly positioned for the exposure and allows the technologist to move it to accommodate different views and patient setups while maintaining alignment with the X-ray beam and any grid in the system. It doesn’t generate X-rays or measure exposure time—that’s done by the tube and the exposure timer, respectively.