作者: Henrik Nordman , Lasse Koskinen , Timo Vieno , Aimo Hautojärvi , Jukka-Pekka Salo
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摘要: Spent fuel from the TVO I and II reactors is planned to be disposed of in a repository constructed at depth about 500 meters crystalline bedrock. The will encapsulated composite copper steel canisters. Preliminary site investigations have been carried out between 1987 1992 five sites. If conditions geosphere vicinity do not change drastically if no major disruptive event hits repository, copper-steel canisters remain intact for millions years significant amount radioactive substances ever escape repository. spent fuel, buffer restrict efficiently release radionuclides even canister initially defective or broken soon after sealing results safety analysis attest that disposal system fulfills requirements. Suitable places can found each investigation It important characterize detail where located, so fracture zones taken into consideration when constructing