G21C5/00—Moderator or core structure; Selection of materials for use as moderator
G21C5/14—Moderator or core structure; Selection of materials for use as moderator characterised by shape
G21C5/16—Shape of its constituent parts
G—PHYSICS
G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
G21C—NUCLEAR REACTORS
G21C5/00—Moderator or core structure; Selection of materials for use as moderator
G21C5/02—Details
G21C5/08—Means for preventing undesired asymmetric expansion of the complete structure ; Stretching devices, pins
G—PHYSICS
G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
G21C—NUCLEAR REACTORS
G21C5/00—Moderator or core structure; Selection of materials for use as moderator
G21C5/02—Details
G21C5/10—Means for supporting the complete structure
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
Bati de couvercle pour conteneur de transport d'assemblage de combustible nucleaire et conteneur de transport pour des assemblages de combustible nucleaire