What action must be taken if personal dosimeter readings exceed regulatory limits?

When personal dosimeter readings exceed regulatory limits, an investigation into the exposure must be conducted to ensure the safety and health of the individual and others in the vicinity. Elevated readings indicate that the individual may have been exposed to radiation levels beyond what is deemed acceptable, which could pose health risks.

Investigating the exposure allows for understanding the circumstances surrounding the elevated readings, identifying potential sources of radiation, assessing the effectiveness of current safety measures, and determining if systemic changes are necessary to protect personnel in the future. This may involve measuring radiation levels in the work area, reviewing work history, and analyzing compliance with safety protocols.

Taking no action or allowing the individual to continue working without changes does not address the potential risks associated with elevated exposure levels, and recalibrating the dosimeter would not resolve underlying safety concerns. Therefore, conducting an investigation is the appropriate response to ensure the well-being of the exposed individual and maintain optimal operational safety standards.