Sentence examples for plutonium remains from inspiring English sources

A: Plutonium remains radioactive for many thousands of years – just how long depends on which isotope.

The old Yongbyon reactor, which had been used to produce plutonium, remains inoperative, according to Mr. Pritchard, who met with North Korea's chief nuclear envoy, Kim Kye-gwan, and the chief diplomat for United States affairs, Ri Gun.

Most plutonium remains in the seabed under Bylot Sound far from man under relatively stable conditions and concentrations of plutonium in seawater and animals are low.

Though plutonium remains in the environment for several thousand years, multiple studies have shown that significant radiation exposure — some reports say as much as 1,000 millisieverts — is required to increase the cancer incidence by even 5%.

Meanwhile, progress on tackling suspected uranium enrichment, nuclear proliferation and the North's existing handful of plutonium weapons remains as elusive as ever.Now North Korea has grown shrill towards South Korea, which under President Lee Myung-bak does not want to give unconditional aid.

But that's assuming the terrorists could scrape together the fissile material the uranium or plutonium that remains impossible for a terrorist group to produce on its own.

The negotiation of a convention prohibiting the production of enriched uranium and plutonium for weapons remains blocked at the Geneva Disarmament Conference.

It is also found that the isotopic composition of plutonium (Pu-vector composition) remains more steady with burnup in a metal core.

In this sense only, more nuclear tests would actually help, by using up what plutonium is left.So North Korea remains a rogue state with an alarming nuclear programme rather than being a nuclear power in its own right.

Aniskin works at the so-called sarcophagus, tending the steel and cement tomb that encases 216 tons of uranium and plutonium buried within the remains of the fourth reactor block.

By that time, thanks to the European contracts, Japan will be sitting on more than 50 tonnes of plutonium, if its MOX programme remains stalled.