NEUTRON SHIELD, NUCLEAR REACTOR, AND NEUTRON SHIELDING METHOD

摘要

PPROBLEM TO BE SOLVED: To provide a neutron absorption technique superior in structure integrity to a neutron shield arranged outside the core of a nuclear reactor. PSOLUTION: A neutron shield is arranged outside the core of a nuclear reactor 20 and absorbs neutrons leaking from the core (see Fig.1). The neutron shield includes a plurality of housings 72 which contain powdery neutron absorbing material 71 (for example, BSB4/SBC) and which are layered in a vertical direction, and a cladding tube 74 storing the housing 72. PCOPYRIGHT: (C)2010,JPO&INPIT