| 摘要 |
PROBLEM TO BE SOLVED: To provide a cask for spent fuel capable of enhancing a heat transfer property between a basket and a barrel main body, and capable of enhancing heat removal performance. SOLUTION: This cask is provided with the barrel body 3 for shielding aγ-ray, a neutron shielding body 10 provided in an outer circumferential side of the barrel body 3, and a basket part 4 assembled lattice-likely with a plurality of basket plates 14a-14d, 15a-15d, 16a-16d, 17a-17d insertion-supported by a plurality of grooves 13 formed on an inner circumferential face of the barrel body 3, and for forming a plurality of sections for storing spent fuel assemblies 2, and the plurality of basket plates 14a-14d, 15a-15d, 16a-16d, 17a-17d are layeredly arranged each other along an axial direction of the barrel body 3, by engaging fellow slits 18 formed in a portion crossed mutually with the first basket plate groups 14, 16 aligned in parallel each other toward a lateral direction, and the second basket plate groups 15, 17 aligned in parallel each other toward a vertical direction right-angled to the lateral direction. COPYRIGHT: (C)2007,JPO&INPIT
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