METHOD FOR RECOVERING RADIATION-HAZARDOUS COMPARTMENTS OF UNDERWATER AND SURFACE CRAFT Russian patent published in 2006 - IPC G21F9/34 

FIELD: nuclear engineering.

SUBSTANCE: proposed method includes bringing craft to nuclear-safe condition by removing fissionable materials therefrom. Radiation-hazardous compartment is inspected for radiation condition, cut out from craft, treated with solidifying compound, and sealed. In the process recovery is made on land. In addition, external components are dismounted from compartment hull. Dismounted radioactive components are cut in two parts and disposed inside compartment hull. Compartment is treated with solidifying compound by its external solidification with variable-thickness layer upon sealing and outside inspection of compartment for radiation condition, and γ-radiation level is measured in the course of inspection. Characteristics of immobilized pollutants of α- and β-radiating radionuclides are determined. Results obtained are mapped and these maps are used to detect radiation-hazardous zones to calculate local thickness of shielding barrier in each of these zones.

EFFECT: enhanced safety, reduced labor consumption and material input.

3 cl, 11 dwg