Table of doses
The doses used for the treatment of alimentary products are much stronger than those used in radiotherapy. For example, doses of 50 -150 Grays appeared the lowest in the table, whilst similar doses administered locally for the treatment of a cancer tumour would be considered very high, (the same on the entire body would be lethal). In the meantime, energy levels remain modest in absolute values. A dose of 1000 Grays (2,4kcal/litre) would raise the temperature of a litre of water only by 2.4°C
Source SFEN