Which of the following are disadvantages of using pocket ionization chambers as personnel monitoring devices?

Using pocket ionization chambers as personnel monitoring devices has several notable disadvantages that are effectively encapsulated in the chosen response.

Firstly, pocket ionization chambers have a limited dose range, which means they are not suitable for measuring very high levels of exposure that may occur in certain radiographic environments. This limitation can result in an inability to provide accurate readings in conditions where higher doses are present, potentially compromising safety.

Secondly, these devices do not produce a permanent record of radiation exposure. While the immediate reading can indicate the dose received, once the device is reset or if it were to malfunction, the data can be lost. This becomes problematic for employers and safety officers who need comprehensive records of employee exposure over time for compliance with safety regulations.

Lastly, the subjective nature of the reading further complicates the reliability of pocket ionization chambers. The user, when checking their pocket ionization chamber, must interpret the measurement themselves, which opens the door to human error or misjudgment. This subjectivity can lead to inconsistencies in recorded data, ultimately affecting occupational safety assessments.

Thus, the combination of a limited dose range, lack of a permanent record, and the subjective evaluation of the readings encapsulates all significant drawbacks of using pocket ionization chambers in personnel monitoring.