Which basic principles can be used to reduce radiation dose?

The correct choice is based on the fundamental concepts of radiation protection, commonly referred to as the three cardinal principles: time, distance, and shielding.

Time refers to the duration of exposure to radiation. The longer an individual is exposed, the higher the dose they receive. By minimizing the time spent near a radiation source, the overall dose can be effectively reduced.

Distance plays a crucial role, as radiation intensity diminishes with increasing distance from the source. This relationship is often described by the inverse square law, meaning that doubling the distance from a source decreases exposure by a factor of four. Therefore, maximizing distance from the radiation source is an effective strategy for reducing dose.

Shielding involves using materials that can absorb or block radiation. By placing barriers made of lead, concrete, or other appropriate materials between the source and the individual, the radiation can be significantly attenuated, thereby reducing the dose received.

Combining these three principles provides a comprehensive approach to minimizing radiation exposure and enhancing safety in radiographic practices.