electron volt

n. Abbr. eV

A unit of energy equal to the energy acquired by an electron falling through a potential difference of one volt, approximately 1.602 × 10^-19 joules.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

electron volt

A unit used to measure the energy of subatomic particles. It is equal to the energy gained by an electron that is accelerated until its electric potential is one volt greater than it was before being accelerated.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

electron volt - a unit of energy equal to the work done by an electron accelerated through a potential difference of 1 volt

energy unit, heat unit, work unit - a unit of measurement for work

Translations

elektronvolt

electronvoltio

électronvolt électron-volt

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References in periodicals archive

But the source of the most energetic ones--those carrying a punch of 1018 or even 1020 electron volts (eV)--has been a mystery since the first of these was detected in 1962.

Cosmic superparticle mystery: solved? Scientists finally think they've found where the unbelievable "ultrahigh-energy cosmic rays" are coming from

While the Moon's gamma-ray glow is surprising and impressive, the Sun does shine brighter in gamma rays with energies higher than 1 billion electron volts. Cosmic rays with lower energies do not reach the Sun because its powerful magnetic field screens them out.

Moon Glows Brighter than Sun in Images from NASA's Fermi

In a milestone in the 10 billion USD Large Hadron Collider's ambitious bid to reveal details about theoretical particles and microforces, scientists at the CERN collided the beams and took measurements at a combined energy level of seven trillion electron volts. The collisions herald a new era for researchers working on the machine in a 17-mile (27 kilometer) tunnel below the Swiss-French border at Geneva, reported the AP on Wednesday.

(SCI) WAIT FOR NEW PHYSICAL DISCOVERIES IN 6 MONTHS AFTER CERN TEST, DR. DEMIRKOZ

But on Monday, researchers achieved a record energy level of 1.18 trillion electron volts, and without incident.

A smashing debut for the LHC

The new results show an unexpected surplus of cosmic ray electrons at very high energy - 300-800 billion electron volts - that must come from a previously unidentified source or from the annihilation of very exotic theoretical particles used to explain dark matter.

Scientists Discover New Source of 'High-Energy' Cosmic Rays

The resulting energies, ranging from 3 million to 10 million electron volts and coupled with 1 kW to 50 kW of power, have sufficient energy to penetrate most products in their final shipping containers.

Use electron beams to treat alfalfa seeds

of Middleton, Wis., for commercialization of a revolutionary microcalorimeter-based X-ray detector with an energy resolution of two electron volts, some 50 times better than conventional semiconductor-based detectors.

NIST X-RAY DETECTOR HEADS FOR COMMERCIALIZATION

The facilities will include a proton synchrotron, in which protons will be accelerated to 50 billion electron volts, and a neutron diffusing facility.

Research bodies report proton accelerator project