CONTROL AND PROTECTION RODS OF NUCLEAR REACTOR Russian patent published in 2014 - IPC G21C7/10 

FIELD: power engineering.

SUBSTANCE: nuclear reactor control and protection rod includes a body and several absorbing elements fixed in it. At least one of elements comprises a shell and two plugs, between which circular blocks of a neutron absorber are placed. Between the shell, the upper plug and circular blocks of the neutron absorber, and also in their hole there is an elastic gas permeable material, and the upper plug comprises through holes into the inner cavity.

EFFECT: increased reliability of a rod with an absorbing element of small diameter at considerable simplification of design and preservation of its serviceability.

3 cl, 2 dwg