What is the first step you should take if you receive an irregular reading from a self-reading pocket dosimeter?

When you receive an irregular reading from a self-reading pocket dosimeter, the most appropriate first step is to secure work activities. This action is vital for ensuring the safety of yourself and others in the area. By securing work activities, you are effectively halting any potential exposure to radiation while you assess the situation. This demonstrates a precautionary approach to handling unexpected readings, allowing for evaluation of the source of the irregularity without placing individuals at further risk.

Following the securing of work activities, it would be wise to notify personnel such as Radiation Control (RadCon), check the equipment again, or leave the area, but the initial priority should be ensuring the immediate safety of everyone involved. Taking this step establishes a controlled environment to address the irregular reading appropriately.