Which device is required to attenuate scattered radiation in undertable fluoroscopy?

The Bucky-slot cover is essential for attenuating scattered radiation in undertable fluoroscopy. This device is designed to shield personnel from radiation exposure and is positioned to cover the slot that allows for the use of a cassette holder underneath the table. It effectively reduces the amount of scattered radiation that can escape from the opening, thus providing a protective barrier for those operating the fluoroscopy equipment.

In contrast, while a protective curtain may help minimize exposure, it typically addresses side radiation rather than the specific scattered radiation coming from beneath the table. The image intensifier is primarily used to enhance image quality and reduce the radiation dose required for imaging, but it does not serve to specifically attenuate scattered radiation. Lastly, the fluoroscopic timer aids in regulating the duration of exposure during procedures but does not physically block scattered radiation. Each of these other devices has its purpose in radiation protection, but the Bucky-slot cover directly addresses the need to attenuate scattered radiation in the context of undertable fluoroscopy.