What is one of the main principles for reducing radiation exposure?

Decreasing time near the radiation source is a fundamental principle for reducing radiation exposure due to the nature of how radiation exposure works. The longer an individual is near a source of radiation, the greater the cumulative dose they will receive over that time. This principle is rooted in the concept that radiation exposure is directly proportional to the duration of exposure.

By minimizing the time spent in close proximity to radiation sources, workers can significantly lower their risk of receiving harmful doses. This practice is integral to radiation safety protocols and is emphasized in training for radiological workers. It aligns with the broader guidelines of time, distance, and shielding, which are essential for effective radiation protection measures.

The other options, while relevant in different contexts, do not directly pertain to the fundamental practices for reducing radiation exposure in the same way. For example, using protective goggles may be important for shielding eyes but does not generally affect the overall exposure significantly compared to time spent near the source. Minimizing waste generation is crucial for overall safety and environmental protection but is not a direct method for reducing personal radiation exposure. Increased temperature control can be pertinent in various scenarios but does not relate to radiation safety directly.