Who decided how much radiation would affect one single human cell?

Question

Unknown area.

Answer 1

Different types of radiation do different amounts of damage to DNA, and different human tissues are susceptible to radiation damage to different extents. Alpha particles do the most damage, and neutrons are bad too. A radiation dose measure called a REM (Röntgen Equivalent to Man) attempts to adjust raw radiation dose to allow for the different amounts of damage done by alpha, beta, gamma and neutron radiation. The adjustment was done experimentally, by observing the different effects different particles have on human tissue. The damage done by beta and gamma rays depends on their energy, and primary cosmic rays, which are the fast-moving nuclei of heavy atoms, also do damage which depends on their mass and velocity.

Answer 2

I think lots of timed experiments were done on tissues to reach the level of radiation and the time taken for breakdown of the nuclei

Answer 3

Research