APPARATUS AND METHOD FOR PREPARING A CANISTER LOADED WITH WET RADIOACTIVE ELEMENTS FOR DRY STORAGE
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United States of America Patent
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app pub date -
Mar 27, 2007
filing date -
Dec 13, 2002
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Abandoned
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Abstract
The present invention provides a method and system of preparing a canister having a cavity loaded with wet radioactive elements for dry storage, the method comprising: (a) providing a gas circulation system comprising means for removing moisture from gas; (b) connecting the gas circulation system to the canister so as to form a hermetically sealed closed-loop path that includes the cavity; and (c) circulating a non-reactive gas through the hermetically sealed closed-loop path until a desired vapor pressure is achieved in the cavity of the canister, the circulating non-reactive gas becoming wetted as the non-reactive gas flows through the canister and dried as the non-reactive gas flows through the moisture removal means. The apparatus comprises a gas circulation system comprising a source of a non-reactive gas and means for removing moisture from gas, the gas circulation system adapted to form a hermetically sealed closed-loop path when operably connected to a cavity of a canister to be prepared for dry storage; and means for circulating the non-reactive gas of the source through the closed-loop path so that the circulating non-reactive gas becomes wetted while flowing through the canister and dried as flowing through the moisture removal means.
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