Radiation Safety Practice Exam

Which dosimeter allows for multiple readouts and reconfirmation of reported radiation doses?

1. Self-reading dosimeter

2. Optically Stimulated Luminescent Dosimeter

3. Film badge

4. Traditional ionization chamber

The correct answer is: Optically Stimulated Luminescent Dosimeter

Optically Stimulated Luminescent Dosimeters (OSLDs) are designed to allow for multiple readouts and reconfirmation of reported radiation doses, making them a highly effective tool for monitoring exposure to radiation. The mechanism of an OSLD involves using a crystal that becomes luminescent when stimulated by light. This luminescent response is proportional to the amount of radiation exposure the dosimeter has received. One of the key advantages of OSLDs is that they can be read multiple times. After an initial exposure measurement, they can be re-analyzed by applying a specific light signal, which allows for verification of the dose even after significant time has passed since the initial reading. This feature is particularly beneficial in environments where accurate dose monitoring is critical and may need to be confirmed at a later date. Overall, the ability for OSLDs to provide multiple readouts helps enhance the accuracy of dose assessment and the reliability of radiation safety practices in various settings.