CONTAINER FOR RADIOACTIVE MATERIAL

PROBLEM TO BE SOLVED: To enhance an air-tightness inside a cavity by the inner container and a double lid, as well as, to prevent radioactive materials inside the cavity from leaking. SOLUTION: In a container for radioactive material (cask 100), the outer container 9 is placed outside an inner conta...

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Bibliographic Details
Main Authors ASADA KAZUO, OSONO MASANARI, SAKAGUCHI YASUHIRO, ONO ATSUSHI, OKAME SHINJI
Format Patent
LanguageEnglish
Published 08.05.2008
Subjects
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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Summary:PROBLEM TO BE SOLVED: To enhance an air-tightness inside a cavity by the inner container and a double lid, as well as, to prevent radioactive materials inside the cavity from leaking. SOLUTION: In a container for radioactive material (cask 100), the outer container 9 is placed outside an inner container 8 molded integrally by deep drawing. The outer container 9 is made of carbon steel and has gamma-ray shielding function, but the sealing performance is not required of the outer container 9. Since the inner container 8 is shaped like a bottomed container by integral molding, it can prevent radioactive materials inside it from leaking. Especially, the container has a double lid, consisting of a primary lid and a secondary lid placed on the side of an opening of the container 8, and a sealing surface and a mating surface are formed respectively on a stepped face where the secondary lid located outside the container, in comparison with the primary lid is in contact with the edge of the container. COPYRIGHT: (C)2008,JPO&INPIT
Bibliography:Application Number: JP20070322996