What is the primary purpose of a dosimeter in radiation safety?

The primary purpose of a dosimeter is to measure a person's cumulative radiation exposure. Dosimeters are essential tools in radiation safety because they provide a record of the amount of ionizing radiation that an individual is exposed to over time. This is important for monitoring and assessing the risk of radiation exposure, ensuring that individuals do not exceed established safety thresholds that could lead to harmful effects on health.

By measuring cumulative exposure, dosimeters help in maintaining safety protocols and compliance with regulatory requirements. They provide valuable information for both the individual and the organization regarding radiation safety practices and the effectiveness of protective measures implemented in work environments where radiation exposure is a concern.

In contrast, measuring ambient radiation levels, providing protection, and shielding materials, while important concepts in radiation safety, are not the primary functions of a dosimeter. The focus of dosimetry is specifically on personal exposure monitoring rather than environmental assessment or protective strategies.