Investigation into Release of Radioactive Substances from Filings during Simulation of Underwater Cutting of AMB Spent Nuclear Fuel
The paper describes methods, equipment and observations of a release of radioactive substances from filings of irradiated fuel rods containing (U-9% Mo)+Mg and UC+Ca dispersed fuel. Kinetics of 137Cs release from the filings into water and elemental composition of the solution produced after keeping the filings in water are determined. A ratio of 137Cs distribution between the solution and air and rate of α-emitting aerosols release from the surface of the solution are obtained. Rate of γ- and α-emitting aerosols release from the surface of dried filings is calculated