Sentences with phrase «of natural uranium»

The colorless, odorless, radioactive gas, which forms as a by - product of natural uranium decay in rocks, builds up in homes, causing lung cancer.

Measurements of natural uranium and its decay products in mastodon bone fragments enabled scientists to estimate their age.

Other studies offer different estimates of the amount of energy it will take to make the uranium fuel and, as the WNA notes, one metric ton of natural uranium yields nearly 20,000 times as much energy as the equivalent amount of coal — the cheapest form of electric generation at present.

Therefore, the excess 235U produced by the decay of 247Cm can not be seen in minerals or inclusions that contain large or even average amounts of natural uranium.

«We're running at five million SWU,» Derryberry says, enough to turn more than 18 million pounds (8.2 million kilograms) of natural uranium into more than 1.8 million pounds (816,465 kilograms) of uranium enriched to contain 4.5 percent U235.

For every 1,000 atoms of natural uranium, only seven can easily split under neutron bombardment: They are the fissile isotope U235.

Under terms of the contract, as amended in 1996, United States Enrichment Corporation (i) purchased the enrichment portion of the blended - down material and sold it to its electric utility customers for use in fabricating fuel for their commercial nuclear power plants, and (ii) transferred to TENEX a quantity of natural uranium equal to the natural uranium component of the low enriched uranium.

About 200 millirems of that comes from radon gas, a colorless, odorless by - product of natural uranium, found in trace amounts almost everywhere.

CE: Today, 0.72 % of natural uranium is 235U.