FIELD: power engineering.
SUBSTANCE: protective chamber for processing a material preferably in the form of a powder, granules and/or pellets, which contains civil or weapon plutonium in the form of plutonium oxide, carbide and/or nitride and may contain other actinides, for instance, americium, neptunium or curium, having an outer border and a base. The protective chamber has multiple separate subcritical gaps (603) to catch spilled material containing plutonium, which are arranged on the base, and also under appropriate conditions at the outer border.
EFFECT: invention makes it possible to efficiently prevent criticality at plants.
9 cl, 11 dwg
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