MeV
Noun
Meaning
(physics) Initialism of megaelectron volt, 10 eV
(physics, US) Initialism of million electron volts, 10 eV
meV
Abbreviation of millielectronvolt.
Related terms
Examples
About 6 MeV of the fission-input energy is supplied by the simple binding of an extra neutron to the heavy nucleus via the strong force; however, in many fissionable isotopes, this amount of energy is not enough for fission.
About two months after the test, a new component was isolated emitting high-energy α-particles (7.1 MeV) with a half-life of about a day.
After separation, the two drops would be driven apart by their mutual electric repulsion and would acquire high speed and hence a very large energy, about 200 MeV in all; where could that energy come from?
Also, an average of 2.5 neutrons are emitted, with a mean kinetic energy per neutron of ~2 MeV (total of 4.8 MeV).
A gamma ray with roughly 2 MeV of energy is produced in this reaction, but because this is below the detector's energy threshold they are not observable.
An alpha particle can be thought of as being inside a potential barrier whose walls are 25 MeV.