G21C5/00—Moderator or core structure; Selection of materials for use as moderator
G21C5/02—Details
G21C5/06—Means for locating or supporting fuel elements
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Reacteur nucleaire a derive spectrale mecanique comprenant, sur la tete de fermeture de sa partie superieure, des moyens de translation relies a des elements de deplacement de l'eau de refroidissement, et a des moyens de guidage des elements precites