METHOD OF MAKING NEUTRON MODERATOR AND REFLECTOR UNITS OF NUCLEAR REACTOR Russian patent published in 2014 - IPC G21C5/02 

FIELD: physics, atomic power.

SUBSTANCE: invention relates to nuclear engineering and can be used in making neutron moderator and reflector units containing beryllium, primarily for research reactors. The method of making neutron moderator and reflector units of a nuclear reactor includes placing beryllium in a sealed casing. The casing, which defines the shape of the unit, is hermetically connected to a bottom fitting. Beryllium granules are poured into the casing and compacted and the casing is then hermetically connected to a top fitting. When making moderator units, compacting is carried out to density of 70-85% of the theoretical value to 60-90% of the theoretical value when making reflector units.

EFFECT: high environmental friendliness of production owing to exclusion of mechanical treatment operations as well as reduced beryllium "poisoning" effect due to accumulation of ³He.

8 cl, 4 dwg