free electron


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Related to free electron: Free electron gas, Free electron laser

free electron

An electron that is not bound to an atom, molecule, or ion but is free to move under the influence of an electric or magnetic field.

free electron

[¦frē i′lek‚trän]
(physics)
An electron that is not constrained to remain in a particular atom, and is therefore able to move in matter or in a vacuum when acted on by external electric or magnetic fields.
References in periodicals archive ?
Free Electrons allows for utilities to cooperate with each other on pilots, which is unique, and effective for startups, as they only have to go through a learning curve with a utility once and allows for them to scale much faster.
As the semiconductor absorbs X-ray radiation, the free electrons and holes are generated, the amount of which is proportional to the energy of the absorbed X-ray quanta.
Let the longitudinal and radial distribution of the free electrons of the conductor will be determined on the assumption that their spatial distribution movement and accordingly to the coordinates r and z in the first approximation subject to a one-dimensional wave temporal Schrodinger equation [3].
We imagined that the free electrons in metal as a gas of nonrelativistic particles confined by the vacuum pressure in the interior of a cubic box of edge equal to d.
where d[[sigma].sub.SM]/dT and d[[sigma].sup.FE.sub.[mu]]/dT are the SM and [[mu].sub.v] contributions to the differential cross section for scattering of an electron antineutrino on two free electrons. Let us recall that following [51] one should expect the [f.sub.NMM] value to be of about [10.sup.8] at T [right arrow] [T.sub.I].
"The determination was that the free electron laser has the highest technical risk in terms of ultimately being able to field in a ship.
Free electron lasers show promise for a wide array of applications in defense and manufacturing, and they support advanced studies in chemistry, physics, biology and medical science.
The corresponding eigenfunctions contain a factor related to the free electron, which far from the atom takes the form
Madey, who created free electron lasers--will be the first ever to integrate free electron laser and LIDAR technologies for this purpose.
The European x-ray free electron laser (EXFEL) in Hamburg commenced operations in Sept 2017, and produces high-energy x-rays at unprecedented repetition rates.
These atoms (molecules) of a substance will be the main <<suppliers>> of additional free electrons in the LL channel, the electron temperature [T.sub.e] of which will support and determine its aforementioned heat flow as it pulsed stage A-component of the current and the flow step it prolonged the C-component of the current of the lightning discharge.
where the original free electron jumps into the positron hole and the electron from the pair becomes the new free electron.