Sentence examples for sealed repository from inspiring English sources

The United States has informed an international agency that oversees nuclear materials that it intends to move hundreds of tons of uranium from a sealed repository south of Baghdad to a more secure place outside Iraq, Western diplomats close to the agency say.

As a result, the humid, ventilated caverns could provide many potential niches for microbial growth, which could influence both the integrity of the storage casks (and any associated infrastructure) and the subsequent long-term performance of the sealed repository.

After examining DOE's plans for the site, which is supposed to last at least 10,000 years, an NAS committee found ''no credible or probable scenario for release of radionuclides" as long as the repository is sealed and left undisturbed.

Under current plans, the repository would be kept open and the rods retrievable for 50 to 300 years, allowing for extensive monitoring before the repository is permanently sealed.

Heat and radioactivity testing show that a repository could be built in about ten years and then safely filled and monitored for at least another hundred before being sealed, says Mr Ouzounian.Any permanent repository would be built in a dry geological medium.

Finnish nuclear waste disposal program proposes to dispose spent nuclear fuel in tightly sealed copper canisters in a geological repository; here, copper acts as a corrosion barrier.

The plan for the final disposal of spent fuel from Swedish nuclear power plants is to place it in copper canisters that are sealed and stored in a deep repository.

Secondly, the gas breakthrough (GB) characteristics of swollen plugs are assessed to determine their ability for gas migration, which has to be minimal for sealing radioactive waste repositories.

Clay Sci., (21) 2002], and following positive in situ experiments, compacted bentonite blocks are potential candidates for sealing nuclear waste repositories, thanks to their swelling ability in a wet environment.

As the repository is filled, it will be progressively sealed, using purified clay and concrete, tunnel by tunnel, gallery by gallery.

Researchers have some time to work on the problem because the repositories will probably not be filled and sealed up until the end of this century.