What is the ring badge limit for radiation exposure?

The ring badge limit for radiation exposure is set at 500 mSv. This limit is established to ensure safety for individuals working with radiation, particularly those who may be exposed to high levels in certain medical fields, such as radiology and fluoroscopy. Ring badges are specifically utilized to monitor radiation exposure to the extremities, especially the hands, of personnel who handle radioactive materials or are in close proximity to radiation sources.

Setting the limit at 500 mSv reflects the need to balance occupational exposure with safety considerations, taking into account the potential health risks associated with ionizing radiation. This threshold is designed to prevent acute radiation effects and long-term health risks, such as cancer, while allowing for certain levels of exposure necessary for medical professionals to perform their duties effectively.

In contrast, the other options (100 mSv, 250 mSv, and 1000 mSv) do not represent the established limits for ring badges, thereby underscoring the importance of adhering to the recognized standards in radiation safety to protect healthcare workers and ensure a safe working environment.