A gamma radiation survey meter should measure gamma radiation in what range?

The correct answer indicates that a gamma radiation survey meter should be able to measure gamma radiation in the range of 2 mR to 1 R within a tolerance of 20%. This range is critical for ensuring that the survey meter can effectively monitor areas likely to have significant radiation levels encountered in various environments, such as medical or industrial settings.

A range starting at 2 mR allows for the detection of low levels of gamma radiation, which is important for comprehensive monitoring and safety assessments. The upper limit of 1 R provides an adequate maximum detection capability without overwhelming the instrument’s sensor, ensuring accurate readings in practical scenarios. The added specification of a 20% tolerance accounts for the potential variability in measurements, which is essential in radiation monitoring where precision can significantly impact safety protocols.

This range aligns with established use cases for gamma survey meters, making it particularly suited for applications in which both low and somewhat higher radiation levels may be present. The performance characteristics defined in this range help ensure that the meter is both sensitive enough to detect lower levels and robust enough to handle higher readings, providing a balance essential for effective radiation safety monitoring.