Molten Salt Nuclear Reactor Core

A nuclear reactor core (1) for a molten salt nuclear reactor (100), said nuclear reactor core (1) comprising:

• a tubular substantially cylindrical center moderator and neutron reflector vessel (10) for passage of a liquid moderator and neutron reflector (11) axially extending from a liquid moderator and neutron reflector inlet (12) of the center moderator and neutron reflector vessel (10) to a liquid moderator and neutron reflector outlet (13) of the center moderator and neutron reflector vessel (10),
• a plurality of tubular fuel salt vessels (20), each tubular fuel salt vessel (20) extending axially from a fuel salt inlet (22) of the tubular fuel salt vessel (20) to a fuel salt outlet (23) of the tubular fuel salt vessel (20) for passage of a molten fuel salt (21),
• a plurality of tubular moderator and neutron reflector vessels (30), each tubular moderator and neutron reflector vessel (30) extending axially from a liquid moderator and neutron reflector inlet (32) of the moderator and neutron reflector vessel (30) to a liquid moderator and neutron reflector outlet (33) of the moderator and neutron reflector vessel (30) for passage of a liquid moderator and neutron reflector (31),
• characterized in that
• said plurality of tubular fuel salt vessels (20) are assembled to form a substantially cylindrical fuel salt jacket surrounding said center moderator and neutron reflector vessel (10),
• said plurality of tubular moderator and neutron reflector vessels (30) are assembled to form a substantially cylindrical moderator and neutron reflector jacket surrounding said substantially cylindrical fuel salt jacket, and in that said substantially cylindrical center moderator and neutron reflector vessel (10) has a largest inner cross-sectional area medially between said liquid moderator and neutron reflector inlet (12) of the center moderator and neutron reflector vessel (10) and said liquid moderator and neutron reflector outlet (13) of the moderator and neutron reflector vessel (10).