NEW MATERIAL BASED ON URANIUM, GADOLINIUM AND OXYGEN AND USE THEREOF AS CONSUMABLE NEUTRONIC POISON

摘要

The present invention relates to a new material based on uranium, gadolinium and oxygen, having a crystalline phase of crystallographic structure of cubic type, with a Gd / [Gd + U] atomic ratio ranging from 0.6 to 0, 93, the uranium being present at the oxidation level + IV and / or + V. It also relates to the use of such a material as consumable neutron poison of a fuel element.