What advantage does the TLD badge have over a film badge?

The TLD badge, or Thermoluminescent Dosimeter, has the advantage of being reusable, which is a significant benefit compared to film badges. After exposure to ionizing radiation, TLDs can be heated to release the stored energy, which is then read as luminescent light emitted by the crystals. This process allows the TLD material to be reset and used for future measurements, making it cost-effective and environmentally friendly.

Additionally, the reusable nature of TLDs means that they can provide continuous monitoring over extended periods without the need to replace them after a single use, which is necessary for film badges. Film badges, on the other hand, are typically processed after each use and cannot be re-obtained once developed.

Using TLDs allows for greater flexibility in radiation monitoring, as personnel can utilize the same badge for ongoing assessments while minimizing waste and logistical challenges associated with continuously replacing single-use badges. This feature significantly enhances the practicality of the TLD badge in radiation safety and monitoring programs.