Which component is not required by portable fluoroscopy systems?

In portable fluoroscopy systems, protective curtains or drapes are not a mandatory component. The primary purpose of protective curtains or drapes is to offer additional shielding to minimize exposure to radiation, but they are typically associated with fixed fluoroscopy systems where the setup allows for physical barriers to be implemented more effectively.

On the other hand, components like the primary protective barrier are crucial in any fluoroscopic environment to prevent radiation from escaping the designated area. The dead-man type exposure switch is essential for safety, ensuring that the operator remains in control of the exposure to radiation while using the system. An interlocking system between the image intensifier and the fluoroscopic tube is also important to prevent the tube from being energized unless the image intensifier is appropriately positioned, enhancing patient and personnel safety.

Thus, while protective curtains or drapes contribute to radiation protection when feasible, they are not a required component in portable systems, which prioritize mobility and ease of setup in various environments like hospitals or emergency settings.