Binding Energy

(redirected from Fusion energy)
Also found in: Dictionary, Thesaurus, Medical.
Related to Fusion energy: cold fusion, Fusion power

binding energy

[′bīn·diŋ ¦en·ər·jē]
Abbreviated BE. Also known as total binding energy (TBE).
The net energy required to remove a particle from a system.
The net energy required to decompose a system into its constituent particles.

Energy, Binding


(also separation energy), the energy of any bound system of particles (such as an atom) equal to the work required to decompose the system into constituent particles such that they are an infinite distance from each other and cannot interact. It is a negative quantity, since energy is released in the course of the formation of the bound state, and its absolute value characterizes the bond strength (for example, the stability of nuclei).

According to the Einstein relation, the binding energy is equivalent to the mass defect Δm: ΔE = Δmc2, where c is the velocity of light in a vacuum (seeMASS DEFECT). It is determined by the type of interaction between the particles in a given system. Thus, the binding energy of the nucleus is due to the strong interactions of the nucleons in the nucleus (in the more stable nuclei of intermediate atoms, the specific binding energy is ~8 × 106 electron volts [eV]). The energy may be released when light nuclei fuse into heavier ones, as well as upon the fission of heavy nuclei, which is explained by the decrease of the specific binding energy with increasing atomic number.

The binding energy of electrons in an atom or molecule is determined by the electromagnetic interactions, and for each electron it is proportional to the ionization potential; it is equal to 13.6 eV for an electron of the hydrogen atom in the normal state. These same interactions are responsible for the binding energy of atoms in a molecule or crystal. In the case of the gravitational interaction, the binding energy is ordinarily small; however, it may be of considerable magnitude for certain celestial objects, such as black holes.

References in periodicals archive ?
Fusion energy is fueled by deuterium and tritium isotopes, which are easily extracted from seawater and derived from lithium, in abundant supply.
A fusion reactor is an apparatus that takes the enormous volume of fusion energy generated when light atomic nuclei e.
Fusion Energy combines 7-Eleven Exclusive Blend coffee with guarana, ginseng and yerba mate, all herbs that are thought to boost energy and sharpen mental alertness.
Chapter 14: Why We Will Need Fusion Energy Epilogue Units Glossary Further reading Index
The report begins with an analysis of the basics of fusion energy, the various stages of development in fusion power, the magnetic concept, the Z-pinch concept, inertial confinement concept and many others.
As a member of the National Academy of Sciences, Andy served on several fusion assessment panels, including the Committee on Fusion Science Assessment (1999-2001), the Committee on High Energy Density Plasma Physics Assessment (200112003) and the Committee on Prospects for Inertial Confinement Fusion Energy Systems (2010-2012).
Fleischmann's genius inspired a generation of audacious researchers and there are now thousands of scientific reports confirming the reality, safety and stunning promise of solid state fusion energy.
They write, "As fiscal year (FY) 2014 has started and you consider legislation to fund the government for the entire year, we ask you to support a vibrant domestic fusion energy program".
While the fusion rates observed so far are small, the discovery of cold nuclear fusion in condensed matter opens the possibility at least of a new path to fusion energy," they write in a manuscript now under review by NATURE.
Both locations are engaged in the design and testing of fusion energy devices derived from work sometimes referred to as LENR (Low Energy Nuclear Reactions) or CANR (Chemically Assisted Nuclear Reactions).
The FMNSD will be comprised of the current Fusion Energy Division and the following two groups: Nuclear Fuel Materials and Remote Systems.
20 PHYSICAL REVIEW LETTERS, they suggest their new plasma will prove useful as a source of particle "bullets" for accelerators and as a tool to develop better fusion energy reactors, among other applications.