Texas Industrial Radiography Gamma Practice Test

What is the primary function of a dosimeter?

1. To shield against radiation

2. To determine the radiation dose received by an individual

3. To calibrate exposure devices

4. To detect environmental radiation

The correct answer is: To determine the radiation dose received by an individual

The primary function of a dosimeter is to determine the radiation dose received by an individual. Dosimeters are specialized devices that measure the ionizing radiation exposure of personnel working in environments where radiation is present, such as in industrial radiography. By providing a quantifiable measurement of radiation exposure over time, dosimeters are essential for monitoring an individual's dose and ensuring that it remains within safe limits. This ensures the health and safety of those working with or around radiation sources, making it a critical tool in radiation protection. Shielding against radiation refers to the use of physical barriers to reduce exposure, which is a separate aspect of radiation safety. Calibration of exposure devices involves adjusting equipment to ensure accurate measurements and is not the primary role of a dosimeter. Detection of environmental radiation relates to monitoring radiation levels in the environment, which is different from the personal dose measurement that dosimeters provide.