RADIOACTIVE SUBSTANCE CONTAINMENT

RADIOACTIVE SUBSTANCE CONTAINMENT

PROBLEM TO BE SOLVED: To provide a radioactive substance containment such as a cask which can appropriately adjust the performance of cushioning a drop impact by simple design changes.SOLUTION: A cask 10 for storing used nuclear fuels includes: a main body 11; and an upper cushioning member 13 and a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SAITO NORIYUKI, SUZUKI TASUKU, KITADA AKIO, SUMI TAISHI, MITSUI HIDEAKI
Format: Patent
Sprache:eng ; jpn
Schlagworte:
DECONTAMINATION ARRANGEMENTS THEREFOR
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT
TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a radioactive substance containment such as a cask which can appropriately adjust the performance of cushioning a drop impact by simple design changes.SOLUTION: A cask 10 for storing used nuclear fuels includes: a main body 11; and an upper cushioning member 13 and a lower cushioning member 12 provided to the main part 11. The upper and lower cushioning members 13 and 12 have a cushioning material 22 in the shape of a three-dimensional net, which is formed of polyhedral frames 31. The frames are each made of vertices in the three-dimensional space and a connecting member 35 connecting the vertices.SELECTED DRAWING: Figure 2 【課題】簡易な設計変更で、落下衝撃に対する緩衝性能を適切に調整することができるキャスク等の放射性物質格納容器を提供する。【解決手段】使用済み核燃料を格納するキャスク１０において、胴本体１１と、胴本体１１に設けられる上部緩衝体１３及び下部緩衝体１２と、を備え、上部緩衝体１３及び下部緩衝体１２は、三次元空間に配置される複数の頂点と、頂点同士を連結する連結部材３５とによって形成される多面体フレーム３１を複数並べた、三次元の網状となる緩衝材２２を有する。【選択図】図２