Sentences with phrase «radioactive nucleus»

When a radioactive nucleus decays, it does so spontaneously; no rule will tell you when or why.

The EPR authors described a source, such as a radioactive nucleus, that shot out pairs of particles with the same speed but in opposite directions.

In order for K - 40 to decay by electron capture, there has to be an electron (for the radioactive nucleus) to capture.

The researchers measured the energy of the γ rays emitted from excited states of the radioactive nuclei using an array of 186 detectors surrounding the reaction target.

In a project that began last month, researchers will transport antimatter by truck and then use it to study the strange behaviour of rare radioactive nuclei.

«Enriching our knowledge of the structures of highly unstable nuclei and the nucleon - nucleon forces that drive nuclear shell evolution and the appearance or disappearance of the nuclear magic numbers in radioactive nuclei plays an important role in understanding astrophysical processes such as nucleosynthesis in stars,» he adds.

However, it has recently been shown that the traditional magic numbers, which were once thought to be robust and common for all nuclei, can in fact change in unstable, radioactive nuclei that have a large imbalance of protons and neutrons.

Researchers intend to transport the elusive material between labs and use it to study the strange behavior of rare radioactive nuclei

Now, however, physicists with Daya Bay report data that support a much simpler explanation: Scientists are merely overestimating the number of neutrinos born from the various radioactive nuclei produced in the fission of one component of standard nuclear fuel.

Maintained records, such as pharmacy files, patient profiles, charge system files, inventories, control records for radioactive nuclei, or registries of poisons, narcotics, or controlled drugs.

Maintains records, such as pharmacy files, patient profiles, charge system files, inventories, control records for radioactive nuclei, and registries of poisons, narcotics, and controlled drugs.

Not exact matches

Sometimes, as is the case with radioactive isotopes, the number of neutrons present in the nucleus can make the isotope unstable.

In particular, radioactive atomic nuclei are synthesized in the hot, innermost regions during the explosion and can thus serve as probes of the unobservable physical processes that initiate the blast.

But also new elements are created in the hot ejecta of the explosion, among them radioactive species such as 44Ti (titanium with 22 protons and 22 neutrons in its atomic nuclei) and 56Ni (28/28 neutrons / protons), which decay to stable calcium and iron, respectively.

Since the radioactive atomic nuclei are synthesized in the innermost regions of the supernova, in the very close vicinity of the neutron star, their spatial distribution reflects explosion asymmetries most directly.

But radioactive atoms have unstable nuclei, meaning they can move around the chart.

They have since learned that there are two other fundamental forces as well, a strong force that binds together atomic nuclei and a weak force that governs radioactive decay.

Those nuclei beef up by gobbling neutrons in rapid succession and then quickly change their chemical identities through radioactive decay.

Neutrinos were predicted in 1930 by Wolfgang Pauli, who said they were emitted during radioactive decay within atomic nuclei.

This explains why it took researchers nearly 30 years to catch a first glimpse of neutrinos, although their existence had been first postulated in 1930 to explain an apparent violation of the conservation of energy in the radioactive decay of unstable atomic nuclei known as beta decay.

There are four fundamental forces in the universe: electromagnetism; the strong force, which binds atomic nuclei together; the weak force, which is responsible for radioactive decay; and gravity.

The radioactive decay of radon gas produces alpha particles (consisting of two protons and two neutrons, an alpha particle is just the bare nucleus of a helium atom), beta particles (which are actually fast - moving electrons), and gamma rays (very energetic photons).

This process explains how particles can escape atomic nuclei, causing radioactive alpha decay.

In their experiment, a radioactive beam composed of scandium - 55 and titanium - 56 nuclei travelling at around 60 % of the speed of light, was selected and purified by the BigRIPS fragment separator, part of the RIBF.

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.

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.

Problems: sometimes the neutron goes out and hits a nucleus of the blanket and instead of just ringing it like a bell, it goes and one of the steel atoms absorb [s] the neutron; now this makes it different material, [it] makes it brittle, it makes it radioactive.

The researchers were able, for the first time worldwide, to observe the radioactive decay of artificially generated nuclei of super-heavy hydrogen at the Mainz MAMI particle accelerator using a combination of several magnetic spectrometers.

In order to determine the mass of the strange hydrogen nucleus as accurately as possible, the nuclear physicists observed the radioactive decay of the nucleus using a combination of several magnetic spectrometers.

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.

Antineutrinos are a by - product of the fission in a nuclear reactor, in which an atomic nucleus of a radioactive element such as plutonium splits into lighter elements.

The aim is to use the detector to try to observe a theoretical atomic event called neutrinoless double - beta decay — a radioactive process whereby an atomic nucleus releases two electrons and no neutrinos.

The evidence of its existence would be revealed by measuring how the axis of nuclei of the radioactive elements radon and radium line up with the spin.

A key point to remember: if we could squeeze several light, stable nuclei together to make one heavy nucleus, it would lie high on the proton - heavy side of the valley, be radioactive, and would soon decay.

Large stable nuclei were also made radioactive by powerful bremsstrahlung radiation.

Gamma - ray photons are between 10,000 and 10,000,000 times more energetic than the photons of visible light when they originate from radioactive atomic nuclei.

The unstable nucleus of this radioactive isotope loses energy by emitting ionizing particles for reaching a stable state.

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

A fossil is the remains or traces of a once - living plant or animal that was preserved in rock or other material before the beginning of recorded history Carbon - 14, 14 C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

carbon - 14 dating dinosaur bones carbon dated dinosaur fossils date Carbon - 14, 14 C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

Also, certain Carbon - 14, 14 C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

It is nonmetallic and tetravalent — making four electrons Carbon - 14, 14 C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

Plus evidence for a much younger Carbon - 14, 14 C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

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Compound Forms / Forme composte: Inglese: Italiano: activated carbon: carbone attivo: active carbon: carbone attivo: carbon 14 n noun: Refers to person Carbon - 14, 14 C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

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Bone Diagenesis and Radiocarbon Dating of Fish Bones at the Shag River Mouth Site, New Zealand Carbon - 14, 14 C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

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The destructive power of the alpha particle — a helium - like structure ejected from the nucleus of a radioactive atom — offers a curiously poetic foil for Basquiat's aesthetic.