Which two are the primary required pieces of equipment for personnel monitoring?

The correct choice highlights the essential equipment used for personnel monitoring in radiography, which includes both film and TLD (Thermoluminescent Dosimeter) badges.

Film badges have been a traditional method of monitoring radiation exposure for many years. They contain a film that darkens in response to radiation exposure, allowing for the measurement of doses over a specific period. This can help assess the cumulative exposure that personnel receive while working in environments where they might encounter ionizing radiation.

TLD badges, on the other hand, use materials that trap energy from radiation exposure. When heated, these materials release the stored energy as light, which can then be measured to determine the amount of radiation the wearer has been exposed to. TLDs are advantageous because they can provide accurate dose measurements and can be reused multiple times with proper calibration.

Utilizing both film and TLD badges together allows for comprehensive monitoring of personnel exposure, ensuring that radiography staff remain within safe dose limits and are adequately protected from the risks associated with exposure to radiation.

Other equipment options like dosimeters and electronic devices may also be utilized in various contexts, but the combination of film and TLD badges is fundamental in personnel radiation monitoring protocols, thereby making it the correct answer in this context.