In nuclear physics, a decay product (also known as a daughter product, daughter isotope, radio-daughter, or daughter nuclide) is the remaining nuclide...

In nuclear science, the decay chain refers to a series of radioactive decays of different radioactive decay products as a sequential series of transformations...

decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus) and thereby transforms or "decays"...

within the material to the abundance of its decay products, which form at a known constant rate of decay. The use of radiometric dating was first published...

Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable...

intermediate product in the decay chain of uranium-238; as such, it can be found naturally in uranium-containing minerals. 226 Ra occurs in the decay chain of...

(Fission products do not decay via alpha decay.) A few neutron-rich and short-lived initial fission products decay by ordinary beta decay (this is the...

In nuclear physics, beta decay (β-decay) is a type of radioactive decay in which an atomic nucleus emits a beta particle (fast energetic electron or positron)...

A quantity is subject to exponential decay if it decreases at a rate proportional to its current value. Symbolically, this process can be expressed by...

between the muon and the set of its decay products is small, providing few kinetic degrees of freedom for decay. Muon decay almost always produces at least...

undergoes alpha decay to francium-221 with a half-life of 10 days, and is an intermediate decay product in the neptunium series (the decay chain starting...

Positron emission, beta plus decay, or β+ decay is a subtype of radioactive decay called beta decay, in which a proton inside a radionuclide nucleus is...

of each decay product, except the end product lead, is proportional to its half-life. While 238U is minimally radioactive, its decay products, thorium-234...

a few percent.) The ratio is less than 190 when the decay products of each are included. The decay chain of uranium-238 to uranium-234 and eventually lead-206...

isotopes occur in nature in much smaller quantities as intermediate products in the decay chains of uranium-238, uranium-235, and thorium-232. Some minerals...

soil and rock where it is generated. Radon isotopes are the immediate decay products of radium isotopes. The instability of 222Rn, its most stable isotope...

"shadowed" from beta decay and can only occur as direct fission products, not as beta decay products of more neutron-rich initial fission products. The shadowed...

warhead is continually undergoing radioactive decay, becoming unavailable for fusion. Also, its decay product, helium-3, absorbs neutrons. This can offset...

decay to 204Hg is > 10 124 {\displaystyle >10^{124}} years. Intermediate decay product of 237Np Intermediate decay product of 238U Intermediate decay...

The decay energy is the energy change of a nucleus having undergone a radioactive decay. Radioactive decay is the process in which an unstable atomic nucleus...

The former occurs as an intermediate decay product of 235U, while the latter two occur as intermediate decay products of 238U. 231Pa makes up nearly all...

the third product. This is the main source of tritium from light water reactors. Another source of tritium is Helium-6 which immediately decays to (stable)...

half-lives and are found in appreciable quantity in Earth's crust. The decay product uranium-234 is also found. Other isotopes such as uranium-233 have been...

penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic...

approximately 3.8 days. It is transient in the decay chain of primordial uranium-238 and is the immediate decay product of radium-226. Radon-222 was first observed...

are highly radioactive and produce further energy by their radioactive decay. Some of them produce neutrons, called delayed neutrons, which contribute...

It can decay by the following methods: Electron capture: the decay energy is 0.93 MeV and the decay product is uranium-236. This usually decays (with a...

emitted. An essential property of this and all nuclide decays is that the total energy of the decay product is less than that of the original nuclide. The difference...

because it represents a decay chain of beta decay. Isotope and element yields will change as the fission products undergo beta decay, while chain yields do...

In natural uranium and in uranium ore, 234U occurs as an indirect decay product of uranium-238, but it makes up only 0.0055% (55 parts per million,...