| 单词 | electron volt |
| 例句 | Radium emitted alpha particles at a meager 7.6 million electron volts and beta rays—that is, electrons—at only 3 million volts. Big Science 2015-07-07T00:00:00Z There was no evidence that hydrogen ions had charged around Edlefsen’s “rather sketchy” apparatus at all, much less at any appreciable fraction of 1 million electron volts. Big Science 2015-07-07T00:00:00Z In Rutherford’s experiment, the alpha-particles had energies of millions of electron volts. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z These particle energies are usually measured in units called electron volts. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z More recently, we have learned how to use electromagnetic fields to give particles energies of at first millions and then thousands of millions of electron volts. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z The journal carried a report by Merle Tuve claiming that his Tesla coil could drive alpha particles to energies as high as 10 million electron volts without “any serious difficulty.” Big Science 2015-07-07T00:00:00Z Radio-sodium had a gratifyingly lengthy half-life of fifteen and a half hours and gamma ray energies that Ernest calculated at about 5 million electron volts. Big Science 2015-07-07T00:00:00Z Bethe had not been wrong about this obstacle, merely premature; but if the cyclotron were to move beyond 30 million electron volts, the issue had to be faced now. Big Science 2015-07-07T00:00:00Z In Lawrence’s expansive vision, Rutherford’s goal of 10 million electron volts was already within reach. Big Science 2015-07-07T00:00:00Z One month later, LHC produced a particle beam of 1.18 trillion electron volts — a bolt of lightning measures about 1 million electron volts — breaking the old record. Fermilab poised to hit the off switch 2011-09-30T14:41:00Z Chi-Nu focuses on "fast-neutron-induced" fission, with incident neutron energies in millions of electron volts, where there have typically been very few measurements. Chi-Nu experiment ends with data to support nuclear security, energy reactors 2023-09-28T04:00:00Z The neutrinos that the astronomers saw have phenomenally high energy, over a tera–electron volt each. Neutrinos from a Nearby Galaxy Reveal Black Hole Secrets 2022-12-20T05:00:00Z These simple relationships between accelerating voltage and particle charges make the electron volt a simple and convenient energy unit in such circumstances. College Physics for AP Courses 2015-08-12T00:00:00Z Calculate its binding energy per atom in millions of electron volts. Chemistry 2019-02-14T00:00:00Z However, striking a match produces millions of photons, but to produce one Higgs boson, we have to concentrate 125 billion electron volts into one spot, which is what they did at the LHC. How the Higgs Boson Ruined Peter Higgs’s Life 2022-06-24T04:00:00Z By comparison the Higgs boson weighs 125 billion electron volts, about as much as an iodine atom. As the Large Hadron Collider Revs Up, Physicists’ Hopes Soar 2022-06-13T04:00:00Z Also being considered is a humongous collider, 100 kilometers around, that would lie under Lake Geneva and would reach energies of 100 trillion electron volts — seven times the power of the Large Hadron Collider. It’s Intermission for the Large Hadron Collider 2018-12-21T05:00:00Z The electron volt is commonly employed in submicroscopic processes—chemical valence energies and molecular and nuclear binding energies are among the quantities often expressed in electron volts. College Physics for AP Courses 2015-08-12T00:00:00Z Calculate its binding energy per atom in millions of electron volts. Chemistry 2019-02-14T00:00:00Z If real, the data indicates a new particle with a mass of 28GeV or 1 billion electron volts, slightly less than a quarter of the mass of a Higgs boson. Has new ghost particle manifested at Large Hadron Collider? 2018-10-31T04:00:00Z The neutrino that set off the alarm in 2017 had an energy of some 300 trillion electron volts, by the units of energy and mass that physicists prefer. It Came From a Black Hole, and Landed in Antarctica 2018-07-12T04:00:00Z This neutrino was rare, carrying an energy of more than 100 tera electron volts, about 10 times the energy reachable by particles inside the most powerful accelerators on Earth. The New Era of Multimessenger Astronomy 2018-05-10T04:00:00Z How are units of volts and electron volts related? College Physics for AP Courses 2015-08-12T00:00:00Z Bessy would become the booster, or first stage, of a newer, more powerful synchrotron propelling electrons to energies of 2.5 billion electron volts. A Light for Science, and Cooperation, in the Middle East 2017-05-08T04:00:00Z The Higgs — or the “God particle” — is one of the heaviest elementary particles known and weighs about 125 billion electron volts, in the units of mass and energy favored by particle physicists. Apparent discovery of new fundamental particle likely just a fluke, physicists say 2016-08-05T04:00:00Z The Higgs, one of the heaviest elementary particles known, weighs about 125 billion electron volts, in the units of mass and energy favored by particle physicists — about as much as an entire iodine atom. The Particle That Wasn’t 2016-08-05T04:00:00Z By way of comparison, the naked proton weighs in at about one billion electron volts and the Higgs boson is about 125 billion electron volts. Physicists in Europe Find Tantalizing Hints of a Mysterious New Particle 2015-12-15T05:00:00Z An energy of 14 trillion electron volts will be available. College Physics for AP Courses 2015-08-12T00:00:00Z It would involve tens of thousands of electron volts and deadly x-rays: using a fusor was considered too technically challenging even for most doctoral candidates. 'If I burn out, I burn out': meet Taylor Wilson, nuclear boy genius 2015-06-20T04:00:00Z It will start up again in March, running close to full strength for the first time, with proton bullets of 6.5 trillion electron volts — enough energy, scientists hope, to break into new ground. Departing Leader of CERN Ponders Uncertainties That Lie Ahead 2015-01-12T05:00:00Z To prevent serious damage to the machine, officials took the step of running the LHC at an energy of seven to eight trillion electron volts - about half what it was designed for. Higgs boson spills secrets as collider powers up 2014-06-30T04:00:00Z For Rydberg atoms in a microwave cavity with a typical exchange frequency of 100 kilohertz, the potential energy difference is about one ten-billionth of an electron volt. Cavity Quantum Electrodynamics 2012-10-09T20:45:02.517Z The energy of the electron in electron volts is numerically the same as the voltage between the plates. College Physics for AP Courses 2015-08-12T00:00:00Z Indeed, evidence of the Higgs boson was reported at the LHC in December at a mass of about 125 billion electron volts, roughly the mass of 125 hydrogen atoms. Could the Large Hadron Collider Discover the Particle Underlying Both Mass and Cosmic Inflation? 2012-06-29T10:45:00.233Z The energy value of 100 trillion electron volts, he conceded, is just a nice round number. Departing Leader of CERN Ponders Uncertainties That Lie Ahead 2015-01-12T05:00:00Z They're working to get the machine back online by January 2015 and this time it will operate at its full energy of 14 trillion electron volts. Higgs boson spills secrets as collider powers up 2014-06-30T04:00:00Z This amount is much smaller than the electronic excitation energy stored in a single Rydberg atom, which is on the order of four electron volts. Cavity Quantum Electrodynamics 2012-10-09T20:45:02.517Z This 0.4 eV of energy is significant compared with typical atomic energies, which are on the order of an electron volt, or thermal energies, which are typically fractions of an electron volt. College Physics for AP Courses 2015-08-12T00:00:00Z The Atlas group put it at 124 billion electron volts, while the CMS group came up with 126 billion electron volts, in the units of mass and energy favored by physicists. New Data on Higgs boson Is Shrouded in Secrecy at CERN 2012-06-20T00:07:58Z Specifically, he’s claimed to spot the candidate gamma rays at 130 billion electron volts. Closing in on Dark Matter: Another "Tentative" Step 2012-04-23T19:15:00.250Z The American version isn't as clear as the Europeans' due to the accelerator's relative weakness: it was somewhere between 115 and 135 billion electron volts. Higgs Boson: Found at Last? 2012-03-08T11:00:00Z For a mismatch of a few billionths of an electron volt, the loan typically lasts a few nanoseconds. Cavity Quantum Electrodynamics 2012-10-09T20:45:02.517Z Though scientists once believed that it had no mass, like the photon, they have now determined that this particle has an extremely low mass, equivalent to a few electron volts. College Physics for AP Courses 2015-08-12T00:00:00Z By comparison, a proton weighs in at one billion electron volts and an electron at half a million. New Data on Higgs boson Is Shrouded in Secrecy at CERN 2012-06-20T00:07:58Z The Hadron collider, now on winter break, will start up again in April, with protons colliding at four trillion electron volts apiece. Higgs Boson May Be Indicated in New Data 2012-03-07T09:27:13Z The proton beams' energies will be increased by 14%, for a total collision energy of 8 trillion electron volts. will break the LHC's own high-energy record. LHC to boost proton power by 14% 2012-02-14T11:02:34Z Each of them carries an energy of about 0.0001 electron volt; thus, the total radiation stored in the cavity does not exceed one tenth of one electron volt. Cavity Quantum Electrodynamics 2012-10-09T20:45:02.517Z The other equally large team, known as C.M.S. — for their detector, the Compact Muon Solenoid — found bumps in their data corresponding to a mass of about 126 billion electron volts. Physicists Will Have to Wait a Little Longer for Higgs Boson 2011-12-13T14:52:36Z By comparison, protons, the bedrock of ordinary matter, are about 1 giga-electron volt, and an electron is only half a million electron volts. Physicists Anxiously Await News of the ?God Particle? 2011-12-12T03:59:24Z Noting the energy level—physicists measure this in billions of electron volts—at which the positron signal drops off would allow physicists to calculate the WIMP's mass. Cosmic Antimatter Excess Confirmed 2011-11-22T21:13:00Z The world's most powerful accelerator, it smashes protons and antiprotons together at 1.8 trillion electron volts. "You're the Top..." [From the Archive] 2011-09-29T17:15:03.417Z The team identified 28 antiprotons with kinetic energies between 60 million and 750 million electron volts. Antimatter Belt Found Circling Earth 2011-08-09T20:55:14Z If the particle does exist at all, it must lie within the range of 115 to 127 billion electron volts, according to the combined measurements. Physicists Will Have to Wait a Little Longer for Higgs Boson 2011-12-13T14:52:36Z For comparison, a proton is about one billion electron volts and an electron is half a million electron volts. News Analysis: Particle Accelerators Full of Spin and Fury, Signifying Something 2011-08-01T21:21:10Z And for the first time, the researchers showed that the signal continues to get stronger up to 200 billion electron volts. Cosmic Antimatter Excess Confirmed 2011-11-22T21:13:00Z For comparison, a proton weighs about one billion electron volts. At Particle Lab, a Tantalizing Glimpse Has Physicists Holding Their Breaths 2011-04-06T04:57:41Z The jets matched what would be seen if they were the decay products of a hitherto unsuspected particle with a mass-energy of about 144 billion electron volts. At Particle Lab, a Tantalizing Glimpse Has Physicists Holding Their Breaths 2011-04-06T00:42:18Z By comparison a proton, the anchor of ordinary matter, weighs in at about a billion electron volts. Teams of Physicists Closing in on the ?God Particle? 2010-07-27T00:40:00Z Ruling it in, if it does in fact exist at, say, 140 billion electron volts, is much harder. News Analysis: Particle Accelerators Full of Spin and Fury, Signifying Something 2011-08-01T21:21:10Z That is, that the relative abundance of positrons seems to rise from 20 billion to 100 billion electron volts. Cosmic Antimatter Excess Confirmed 2011-11-22T21:13:00Z At the Large Hadron Collider, that energy is now 3.5 trillion electron volts per proton — about as much energy as a flea requires to do a pushup. A Primer on the Large Hadron Collider and Particle Physics 2010-04-04T04:10:00Z For comparison, a proton weighs about 1 billion electron volts. At Particle Lab, a Tantalizing Glimpse Has Physicists Holding Their Breaths 2011-04-06T00:42:18Z The 3.5 trillion electron volts tripled the previous record, as did the 7 trillion electron volts of each of the collisions achieved Tuesday. Corrections 2010-04-01T04:00:00Z By comparison, burning wood or any other chemical reaction on an atom scale produces one electron volt. Atom Smasher Will Help Reveal 'The Beginning' 2010-03-31T14:19:00Z It was a foot in diameter and boosted protons to energies of 1.25 million electron volts, the unit of choice for mass and energy in physics. Large Hadron Collider Finally Smashing Properly 2010-03-30T13:55:00Z An electron volt is the amount of energy an electron would gain passing from the negative to the positive side of a one-volt battery. A Primer on the Large Hadron Collider and Particle Physics 2010-04-04T04:10:00Z On Friday morning, the machine created two beams of protons, each with an energy of 3.5 trillion electron volts. LHC smashes energy record again 2010-03-19T13:33:00Z At its greatest energy, the atom smasher collided two beams of circulating particles traveling in opposite directions at 1.18 trillion electron volts, or TeV, about 20 percent higher than the previous record set at Fermilab. Atom Smasher Restarts to Prepare for New Science 2010-03-01T15:18:00Z Splitting a single uranium atom in a nuclear reaction produces 1 million electron volts. Atom Smasher Will Help Reveal 'The Beginning' 2010-03-31T14:19:00Z By comparison, an electron, the lightest well-known particle, is about half a million electron volts, and a proton about a billion. Large Hadron Collider Finally Smashing Properly 2010-03-30T13:55:00Z At 7 trillion electron volts, that will be three times more energy than the record set in November by Heuer's organization — known by its French acronym CERN. Geneva Atom Smasher Seeks Dark Matter Discoveries 2010-03-08T17:37:00Z The effort breaks the prior record, set by the LHC in December, of just over a trillion electron volts in each beam. LHC smashes energy record again 2010-03-19T13:33:00Z The December announcement of particle beam energies in excess of one trillion electron volts made the LHC the world's highest-energy particle accelerator. 2010-02-09T11:04:00Z Two beams of circulating particles traveling in opposite directions at 1.18 trillion electron volts produced the collisions, about 20 percent higher than the previous record set by the Tevatron collider at Fermilab outside Chicago. 2009-12-14T08:01:00Z Last winter Europe took the lead for good when test collisions at the Hadron collider achieved energies of 1.18 trillion electron volts. Large Hadron Collider Finally Smashing Properly 2010-03-30T13:55:00Z Protons with a kinetic energy of ten to the nineteenth electron volts, while statistically rare, are not unusual. Hanging by a Thread Now, ten million million million electron volts may be a wee bit meaningless to the average man, so let's look at it from another angle. Hanging by a Thread |
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