What device is commonly used by RT personnel to measure their radiation dose?

The commonly used device by radiographic testing (RT) personnel to measure their radiation dose is the thermo-luminescent dosimeter (TLD). TLDs are small, portable devices that contain materials which absorb and store energy from ionizing radiation. When the TLD is heated, it releases this energy as light, which can then be measured to determine the amount of radiation exposure that the individual has received over a specified period. TLDs are particularly valued for their accuracy and the ability to provide a cumulative dose reading, making them essential for ensuring the safety of personnel working in environments where radiation exposure is a risk.

Using a TLD allows RT personnel to monitor their exposure levels effectively, complying with safety regulations and ensuring that their radiation dose remains within acceptable limits. This is critical for the health and safety of the individuals involved in the radiographic testing process, as excessive radiation exposure can lead to significant health risks.

In contrast, a radiation survey meter is often used to measure radiation levels in the environment rather than individual exposure. A personal audible alarm functions primarily as a warning device rather than a measurement instrument. A collimator is used to narrow a beam of radiation and control its direction, but it does not measure radiation exposure. Thus, while