Patent ID: 6538259
Filing Date: 2003-03-25
Classification: G21F,Y02E

Abstract:
A storage container for storing a closed container having a radioactive substance sealed therein, comprising:a container body having a storage portion for storing the closed container and a top opening through which the closed container is loaded into and unloaded from the storage portion; a lid closing the top opening of the container body; a heat removing portion having intake vents in a bottom portion of the container body, exhaust vents in a top portion of the container body, and a cooling air passage defined between an inner surface of the storage portion and an outer surface of the closed container stored in the storage portion, the heat removing portion being configured to cause air introduced into the container body through the intake vents to flow into the cooling air passage so as to remove heat from the radioactive substance, and discharge the air through the exhaust vents; closing members configured to close the intake vents and exhaust vents as the closed container is loaded into and unloaded from the storage portion; and a speed reducing portion provided at the top opening of the container body and having a through hole through which the closed container can be passed, the through hole having a dimension smaller than the dimension of the storage portion and larger than the outside dimension of the closed container.