Nuclear fuel element
AssigneeTokyo Shibaura Denki Kabushiki Kaisha
InventorMasayuki Shimada
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Abstract
A fuel element contains a tag gas serving to detect breakage of a cladding tube. Pellets of a fuel material and a metal foil having a tag gas implanted thereinto by ion implantation method are loaded in a cladding tube.
Claims6
A fuel element comprising a cladding tube and a fuel pellet material loaded in the cladding tube, characterized in that a metal foil having a tag gas implanted therein for detecting breakage of the cladding tube is further loaded in the cladding tube, the metal foil being loaded in the cladding tube on the end portion or between said pellet in the form of circular foils or coil of a ribbon-shaped foil, and the circular foil or coil having a diameter smaller than the inner diameter of the cladding tube.
Dependencies are inferred from the claim text.