What is the primary limitation of using a TLD in radiography?

The primary limitation of using a Thermoluminescent Dosimeter (TLD) in radiography relates to its cost. TLDs can be more expensive to use than other dosimetry options due to the materials and processes involved in their construction and the need for specialized reading equipment. Additionally, the cost factor may limit their widespread use, especially in settings where budget constraints are a concern.

While low sensitivity, reusability, and the inability to measure high doses can be considered issues with TLDs in certain contexts, these factors are not as prominent as the cost consideration. TLDs have relatively good sensitivity for the doses encountered in radiographic applications, and they can be reused if handled properly (although repeated heating can alter their sensitivity). Furthermore, TLDs are capable of measuring a range of dose levels, including both low and moderately high doses, making their limitations in this aspect less significant compared to the financial implications of their use.