Sentences with phrase «radioactive decay into»

When the core ignites, carbon and oxygen fuse to form lots of radioactive cobalt - 56, whose radioactive decay into iron - 56 with a half - life of 77 days powers the peak brightness of a supernova.

Nearly half a century ago, NASA developed radioisotope thermal generators (RTGs) that convert the heat from radioactive decay into electricity.

Not exact matches

This material almost immediately decayed into lighter elements, leading to a bright, radioactive «kilonova» astronomers could see some 85 million to 160 million light - years away from Earth.

A recent analysis of chondrites by Carnegie's Myriam Telus was concerned with iron - 60, a short - lived radioactive isotope that decays into nickel - 60.

Wu was the first to verify — and later refine — Enrico Fermi's theory of radioactive beta - decay, which describes how some unstable atoms emit radiation when transforming into more stable atoms.

Sensing they were onto something big, Fischbach and Jenkins scoured the literature and found more reports of radioactive decay enigmatically slowing down and speeding up, results so contrary to expectation that they, too, had largely been tossed into the dust bin of odd results and equipment error.

The Carnegie team focused on a rare isotope of titanium, titanium - 49, because this isotope is the product of radioactive decay of vanadium - 49 which is produced during supernova explosions and transmutes into titanium - 49 with a half - life of 330 days.

The researchers gauged the age of the rocks by looking at the amount of radioactive potassium inside that had decayed into stable argon.

Radioisotope power systems convert heat from the natural radioactive decay of the isotope plutonium - 238 into electricity.

Antimatter flits into existence in a variety of ways: it is produced by black holes, supernovas, and some types of radioactive decay.

Deep underground, uranium atoms in rocks undergo radioactive decay, sending off alpha particles — two protons and two neutrons — that can bump into other molecules and change them.

But uranium - lead dating, in which researchers estimate the age of a rock by comparing its concentrations of radioactive uranium and the lead it decays into, tells a different story.

The radioactive ununpentium (a temporary name meaning «one - one - five») existed for only a fraction of a second before decaying into other elements.

Formaggio and former postdoc Benjamin Monreal, now an assistant professor of physics at UCSB, reasoned that if they could tune into this baseline frequency, they could catch electrons as they shot out of a decaying radioactive gas, and measure their energy in a magnetic field.

Then they will load the trap into a van and drive it a few hundred metres to the site of a neighbouring experiment, known as ISOLDE, that produces rare, radioactive atomic nuclei that decay too quickly to be transported anywhere themselves.

Williams looked at the radioactive elements uranium and thorium trapped in these calcite crystals, using them as a kind of clock based on the rate at which uranium decays into thorium.

As Formaggio explains it, when a radioactive atom such as tritium decays, it turns into an isotope of helium and, in the process, also releases an electron and a neutrino.

In a radioactive metamorphosis called single beta decay, a neutron (a neutral particle) in the nucleus of an unstable atom spontaneously turns into a proton (a positive particle) and emits an electron and an antineutrino — the antimatter twin of a neutrino.

Physicists had been puzzling over something called radioactive beta decay, in which one kind of atom changes into another.

The clusters of lead atoms formed 1 billion years after crystallization of the zircon, by which time the radioactive decay of uranium had formed the lead atoms that then diffused into clusters during reheating.

For example, an electron neutrino — more precisely, an electron antineutrino — emerges when an atomic nucleus such as tritium undergoes a type of radioactive decay called «β decay» and turns into a slightly less massive helium - 3 nucleus while spitting out an electron and an antineutrino.

By measuring the decay of a radioactive metal locked into the shells and rocks, Osborne's team showed that the buried snails must have incorporated water that flowed from the volcanoes.

But as the radioactive elements decay into more stable ones, they stop releasing heat and the interiors of these objects gradually cool, and any subsurface oceans will eventually freeze.

As more and more neutrons pile up in the atom's nucleus, the neutrons undergo a radioactive decay, turning into protons.

Such tests are often performed by injecting a small amount of radioactive material into the blood and tracking its path with cameras that detect radioactive decay.

While the tremendous increase in luminosity is given by energy liberated by the explosion, its gradually fading light is fueled by radioactive cobalt decaying into iron.

Carbon dating uses the radioactive decay of carbon - 14 into.

The half - life of a radioactive element is the time it takes for half of its atoms to decay into

It is based on measurement of the product of the radioactive decay of an isotope of potassium (K) into argon (Ar).

DefinitionSamarium — neodymium dating uses the radioactive decay of 147Sm to 143Nd and 146Sm to 142Nd to measure the age of rocks and minerals and to trace and date geochemical processes responsible for the chemical differentiation of the Earth and the terrestrial planets and to the geochemical and cosmochemical communities in the early 1970s, the Sm — Nd radioactive decay systems have grown into essential tools in geochronology and particularly for the Sm - Nd dating of gabbro - and garnet - bearing contact metamorphic / anatectic rocks from Krutfjellet, Nordland, and some geochemical aspects of the intrusives

We have the increase in atmospheric temperature from nominal forcing and the increase from energy introduced into the system from combustion and radioactive decay in the mantle.

The even older dating suggested by Flowers is the result of looking at the radioactive decay of uranium and thorium into helium in the mineral group apatite.

We should study all aspects of climate, including the most important source of energy into our world climate system (the only other being radioactive decay heat, I believe) a little longer before we make simplifying assumptions that lead us to stupid answers (such as CO2 is the only thing that affects world climate — which is effectively what the IPCC and green lobby asserts today regardless of how much they weasel word it if pressed.)

«Radon gas decays into radioactive particles that can get trapped in your lungs when you breathe,» according to the U.S. Environmental Protection Agency (EPA).