Which of the following is not an example of a personnel monitoring device?

The Geiger counter is primarily used as a radiation survey meter to detect and measure the intensity of radiation in an environment rather than for individual personnel monitoring. It provides real-time readings of radiation levels in the area, making it an essential tool for assessing potential radiation hazards. However, it does not specifically track cumulative radiation exposure for a particular individual over time, which is the primary purpose of personnel monitoring devices.

In contrast, the film badge, TLD (thermoluminescent dosimeter), and pocket dosimeter are designed for individual monitoring of radiation exposure. They record the amount of ionizing radiation exposure that personnel receive, helping ensure that doses stay within safe limits and allowing for appropriate safety procedures to be implemented based on exposure levels.