What dose the full body irradiation of the patient receives a 70 kg when irradiated with a cobalt source (60So27) activity in 1000 Ku, if it gets 2% y-radiation? The isotope emits y-rays with energies of 1.33 MeV and 1.17 (both are in equal amounts). Approximately 50% of the radiation interacts with tissues of the body and releases them all the energy. (Other radiation passes without causing any biological effect).

Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
If you have any questions about the decision to write. I try to help.