Radiation is all around us. It comes from minerals in the ground, soil, water, and food, known as background radiation. For example, depending on the elevation of where you live, you will be exposed to different annual levels of cosmic radiation:
Additionally, in the US, the annual terrestrial radiation varies:
Human activities also contribute to radiation but constitute a tiny fraction of background radiation.
The flight radiation dose can be calculated using the following formula:
\[ \text{Dose} = \text{Flight Duration (hours)} \times \text{Radiation Rate (μSv/hour)} \]
Where:
Let's say you have a flight duration of 10 hours with an average radiation rate of 5 μSv/hour. The total radiation dose would be calculated as follows:
\[ \text{Dose} = 10 \, \text{hours} \times 5 \, \text{μSv/hour} = 50 \, \text{μSv} \]