Protection From Ionising Radiation
We are exposed to natural background radiation on a daily basis and it accounts for about 80 per cent of the radiation doses which we are exposed to. However, an average person will almost never be exposed to sources of radiation which can cause acute health effects. Nonetheless, it is useful to be familiar with the radiation protection principles and how to take the necessary measures to protect oneself if such a situation arises.
Time, Distance and Shielding
The three factors: time, distance and shielding help to minimise exposure to radiation, as depicted in the graphic below.
Limiting or minimising the exposure time to a radiation source reduces the dose
The further away a person is from a radiation source, the lesser the dose of radiation.
Barriers provide protection from the different types of radiation.