What should be done immediately if a Thermoluminescent Dosimeter (TLD) is lost?

In the event that a Thermoluminescent Dosimeter (TLD) is lost, it is imperative to report the loss immediately. This step is essential for several reasons related to safety and regulatory compliance.

First, reporting the loss allows for prompt action to be taken to minimize potential exposure to radiation for the individual or others who may have been in proximity to the TLD before it was lost. TLDs are used for monitoring radiation exposure, and knowing a dosimeter is missing helps in assessing the potential risk of unmonitored exposure.

Secondly, regulatory standards often require that any loss of monitoring equipment be documented. This ensures that proper protocols are followed, and any necessary investigations or audits can be conducted. Such documentation is crucial for maintaining safety records and ensuring the integrity of radiation safety programs.

Furthermore, the lost dosimeter may still be identifiable in terms of its last known readings and location, and reporting aids in the effort to track its whereabouts.

While replacing the dosimeter may seem like a practical immediate solution, without reporting the loss first, there could be ongoing risks associated with not knowing the exposure history tied to the lost device. Therefore, timely reporting is the most responsible and safe course of action when a TLD goes missing.