Effect of metallization of permanent disposal of HLW

To solve the burden of disposal of spent nuclear fuel, many alternatives are studied. One of the prominent option is the metallization. Throughout the metallization, major nuclides producing decay heat are separately and solidified. All TRU's remain in the Li reduction facilities and form a metal ingot. The solidified wastes are to be stored above ground until decay heat becomes significantly reduces. Metal ingots are disposed into an underground repository. Results show that the metallization can save the area of a potential repository by 60%. Also, removal of a gap in a spent nuclear fuel through the metallization process can decrease the doses significantly