what do the terms stochastic and non-stochastic mean?
Stochastic: Illnesses can be caused by radiation through damage to DNA, this is unpredictable.
Side Note: the damage can either occur in full form such as cancer cells or reproductive cells cause hereditary issues or cannot occur at all. The danger comes from the radiation dose.
Non-stochastic: causes side effects of radiation exposure and does not change the DNA of someone's cells. lots of radiation will cause the non- stochastic effect of losing hair etc. little exposure would cause diarrhoea.