Sentences with phrase «of radioactivity»

The Tokyo Electric Power Company (Tepco), which owns the plant, recorded high levels of radioactivity in a drainage ditch that runs to the sea from the tank, but could not detect anything in the seawater itself.

They actually measured the amount of radioactivity found in wood of known age.

With his first graduate student, Ernest Anderson, and others, Libby determined that the expected minute level of radioactivity in organic material actually existed.

Pierre Curie's vital contribution and personality are rendered almost invisible, and Emling says little about the discovery of radioactivity by Henri Becquerel and the Curies in the 1890s — and botches the references she does make to the Curies» legendary preparation of radium between 1899 and 1902.

Very high levels of radioactivity from radon gas have been found in abandoned mines used by prospectors in Southwest England.

The Fukushima nuclear accident resulted in the largest ever accidental release of radioactivity to the oceans.

The Curie historical Museum consists of a permanent exhibition where we can learn about the history of the discovery of radioactivity by Pierre and Marie Curie and its first medical applications with radiotherapy.

Debora MacKenzie's articles on nuclear problems in Russia (This Week, 17 April) illustrate the importance of setting quantities of radioactivity in perspective.

Growth rings in «the loneliest tree on the planet,» an isolated Sitka spruce on Campbell Island, still bear traces of radioactivity from atomic bomb testing in the 1950s and 1960s.

This image captures the spread of radioactivity from a hypothetical fire in a high - density spent - fuel pool at the Peach Bottom Nuclear Power Plant in Pennsylvania.

For the purpose of this Exclusion; i) Utilization of Nuclear weapons of mass destruction means the use of any explosive nuclear weapon or device or the emission, discharge, dispersal, release or escape of fissile material emitting a level of radioactivity capable of causing incapacitating disablement or death amongst people or animals (including in connection with Terrorist Activity).

• Japan has established a fishing exclusion zone of 20 kilometers around the plant, which could be extended depending on the amount of radioactivity found.

«When you're transferring 36 curies [a measure of radioactivity] of berkelium to Russia, you go through a lot of desks,» says Krzysztof Rykaczewski, an ORNL physicist who helped coordinate the transfer.

«New source of radioactivity from Fukushima disaster.»

This released at least two Curies of radioactivity in the underground storage area.

Radiocarbon dating definition, the determination of the age of objects of organic origin by measurement of the radioactivity of their carbon content.

A refined SFR design could eventually mitigate the waste issue because of the reactor's ability to burn spent fuel, but even in a best - case scenario, the reused fuel would retain unsafe levels of radioactivity for several centuries.

A survey of mines by the Devon and Cornwall Prospecting Society has found up to 2.8 million Becquerels of radioactivity per cubic metre of air.

At the GSA meeting, U.S. Geological Survey hydrogeology expert C.E. Neuzil of Reston, Virginia, will report that some shales are so impermeable that there is little risk of radioactivity from buried nuclear waste reaching ground or surface water.

«Last week the company reported alarming levels of radioactivity at three monitoring wells, with one well's radioactivity increasing nearly 65,000 %,» Cuomo said.

The majority of radioactive waste is «low - level waste», meaning it has low levels of radioactivity per mass or volume.

A «becquerel» is a unit of radioactivity.

In it they would seek the elusive «dark matter» whose gravity binds the galaxies, a type of radioactivity that would blur the line between matter and antimatter, and protons falling apart as predicted by some particle theories.

In one study, researchers fed radioactively - labeled vitamin A to rats on low - protein and high - protein diets, using the amount of radioactivity present in exhaled gases, urine and feces as a measure of the metabolism of vitamin A, and found that vitamin A is indeed used at a higher rate on a high - protein diet.»

The rest of the spent fuel * 96 # % volume is converted in low level waste (LLW) that can be handled without expensive precautions and stored safely with no fear of radioactivity pollution.

The Mayak releases included «repeated planned discharges of radioactivity into the Techa River» as well as «many unexpected, so - called «wild overflows» and breakdowns».

The properties of radioactivity prove this without a shadow of a doubt.

Tests conducted on water being dumped into the Pacific Ocean near the Fukushima nuclear power plant have found levels of radioactivity millions of times more than is normal in water.

Two thousand years of Christian history become decreasingly venerable when confronted by the findings of radioactivity dating techniques which date the hardened crust of the earth at three billion years.

The amount and form of radioactivity in human milk after lung scanning, renography and placental localization by 131 I labelled tracers.

State health and environmental regulators have known for decades that at least 62 properties — most in Niagara County — contain varying degrees of radioactivity that tested at levels two to more than 10 times normal for the local environment.

That's amazing, since we usually think of radioactivity as deadly — but these organisms were actually living on radiation?

The popular conception of nuclear power is straight out of The Simpsons: Springfield abounds with signs of radioactivity, from the strange glow surrounding Mr. Burn's nuclear power plant workers to Homer's low sperm count.

A few months earlier, her father gave her a biography of French scientist Marie Curie, two - time winner of the Nobel Prize and a pioneer in the study and understanding of radioactivity.

More than seven years after Pennsylvania officials requested that the disposal of radium - laden fracking wastewater into surface waters be restricted, a new Duke University study finds that high levels of radioactivity persist in stream sediments at three disposal sites.

«Our analysis confirms that this accumulation of radioactivity is derived from the disposal of conventional oil and gas wastewater after 2011, when authorities limited the disposal of unconventional oil and gas wastewater,» said Nancy Lauer, a Nicholas School PhD student who led the study.

«But the quantity of radioactivity leaking into the environment would be just as large.»

Krejci and her colleagues have not yet tested how well the algae survive in the presence of radioactivity.

«There is an enormous amount of radioactivity left in those pools,» Edwin Lyman of the Union of Concerned Scientists said.»

This has created a legacy of radioactivity at spill sites.»

Curious Marie and curium are both named after Marie Curie, whose pioneering work laid the foundation of the theory of radioactivity.

There is also an estimated 37 x 10 ^ 18 becquerels worth of radioactivity in the oceans from naturally dissolved uranium in seawater anyway, which some view as a future nuclear fuel source but is not generally considered a health risk.

Boiling - water reactors, such as those at Fukushima Daiichi or Oyster Creek, directly produce the steam that then turns the turbine to make electricity — adding a sheen of radioactivity to the power - generating equipment.

A fresh explosion has rocked the nuclear reprocessing plant at Chelyabinsk in Russia, releasing 7.4 million becquerels of radioactivity up a ventil - ation shaft.

A study from the directorate, A Review of Radioactivity in the Irish Sea, warns that caesium and other radioactive elements that have settled over the years in sediments around Sellafield are on the move again, counteracting the reduction in emissions from Sellafield itself.

Russian facility apparently botched the production of a radioactivity source for a physics experiment in Italy

The tracing of efficacy to radioactivity naturally suggested the artificial control of radioactivity so as to impart curative effects to inactive spring water or to increase the efficiency of natural springs.

Fanned by winds that shifted suddenly to the east, the fallout plume spread high levels of radioactivity over an area that stretched for hundreds of kilometers and included several inhabited islands.