What is indicated by a reading of 0.1 mR/hr on a Geiger counter?

A reading of 0.1 mR/hr on a Geiger counter is indicative of very low radiation levels. This measurement represents the exposure rate of radiation received over time for a given area. In the context of radiation safety and monitoring, 0.1 mR/hr is well below typical natural background radiation levels, which usually range from 0.1 to 0.2 mR/hr or higher depending on geographic location and environmental factors.

In the field of radiologic technology and safety, understanding these measurements is crucial for ensuring that exposure to radiation remains within safe limits for both patients and healthcare workers. Thus, a Geiger counter reading of 0.1 mR/hr suggests that the radiation present is significantly lower than levels that could pose health risks, affirming that it is a safe environment regarding radiation exposure.