Method for decommissioning heavy water reactor facility
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United States of America Patent
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May 14, 2024
Grant Date -
Oct 14, 2021
app pub date -
Jul 3, 2019
filing date -
Jul 13, 2018
priority date (Note) -
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Abstract
A method for decommissioning a heavy water reactor facility includes: removing the plurality of guide tubes from a plurality of through-holes; installing a plurality of shielding stoppers in the plurality of through-holes; removing the shielding stopper installed in one through-hole of the plurality of through-holes, and inserting a cutting device into a lower portion of the reactivity mechanism deck through the one through-hole to cut a connection portion between the reactivity mechanism deck and the calandria vault by using the cutting device; and separating the reactivity mechanism deck from the calandria vault.
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