| 单词 | particle beam |
| 例句 | Over the following months, he and Ernest sweated to produce an even more energetic particle beam. Big Science 2015-07-07T00:00:00Z They had fenced off the parallel faces of each dee with a grid of fine tungsten wires to prevent the electrical field from impinging within the dees while allowing the particle beam to pass through. Big Science 2015-07-07T00:00:00Z And still it was not a serviceable producer of high-energy particle beams. Big Science 2015-07-07T00:00:00Z It’s been only seven years since the Tevatron last fired up its particle beam, but it seemed like a much longer time ago. Colliders, Sundials and Wonder: When Science Is Your Destination 2018-05-28T04:00:00Z 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 Researchers have already shown they can fuse protons and boron by using particle beams aimed at a solid target or by blasting plasma with lasers. Reactor experiment demonstrates alternative fusion scheme 2023-02-28T05:00:00Z In a tokamak, microwaves and particle beams heat the fuel and magnetic fields trap it. With historic explosion, a long sought fusion breakthrough 2022-12-13T05:00:00Z Heating is provided by microwaves or high energy particle beams. Twisty device explores alternative path to fusion 2022-09-06T04:00:00Z The Large Hadron Collider is starting a new chapter in its life, with more powerful particle beams, enhanced detector capabilities and more sophisticated techniques to enable discovery. 10 Years after the Higgs, Physicists Are Optimistic for More Discoveries 2022-07-05T04:00:00Z Here, engineers are revamping the 15 metre-long cylindrical magnets that bend the particle beams around the accelerator. Large hadron collider: A revamp that could revolutionise physics 2022-04-22T04:00:00Z Moreover, Whyte says, most of those reactions were caused by the particle beams. Reactor experiment demonstrates alternative fusion scheme 2023-02-28T05:00:00Z A TAE subsidiary is developing treatments for cancer using particle beams. Nuclear Fusion Edges Toward the Mainstream 2021-10-18T04:00:00Z The device relies on enormous superconducting magnets to hold the ionized gas, or plasma, in a doughnut-shaped vessel while it is heated with microwaves and particle beams. Plans unveiled for private U.K. fusion reactor powered by ‘smoke rings’ and pneumatic pistons 2021-06-16T04:00:00Z Those experiments involve blasting atomic nuclei with a particle beam that knocks off neutrons, leaving energetically excited nuclei that radiate gamma rays. New type of imager could help spot smuggled nuclear materials 2021-05-19T04:00:00Z Cool electrons cause drag on the incoming particle beams, reducing their effectiveness. With ‘smoke ring’ technology, fusion startup marks steady progress 2021-04-08T04:00:00Z In many fusion reactors, particle beams are used to get the overall plasma temperature hot enough to fuse more widely. Reactor experiment demonstrates alternative fusion scheme 2023-02-28T05:00:00Z These doughnut-shaped vessels contain a superhot ionized gas—or plasma—of hydrogen isotopes that is constrained with powerful magnets and heated by microwaves and particle beams. United Kingdom lights up its unusual fusion reactor 2020-10-30T04:00:00Z But instead of compressing its rings, TAE sustains and heats them with particle beams. Plans unveiled for private U.K. fusion reactor powered by ‘smoke rings’ and pneumatic pistons 2021-06-16T04:00:00Z But MDA is also exploring using directed energy: lasers, neutral particle beams, and microwaves or radio waves. ‘National pride is at stake.’ Russia, China, United States race to build hypersonic weapons 2020-01-08T05:00:00Z Directed energy weapons emit focused energy in the form of lasers, microwaves, electromagnetic radiation, radio waves, sound or particle beams. UAE in weapons making push as allies restrict sales 2019-11-22T05:00:00Z The second technique involves hitting atoms with a particle beam and seeing how those particles scatter off the nuclei. How big is the proton? Particle-size puzzle leaps closer to resolution 2019-11-06T05:00:00Z ELI is designed as a system of powerful lasers and particle beams that would allow researchers to do frontier research in fundamental physics, astrophysics, materials science, biomedicine and even archaeology. World’s largest laser lab rocked by slew of disputes 2019-05-22T04:00:00Z Scientists are also trying to create compact laser-driven accelerators that might produce highly energetic particle beams far more cheaply. Physicists predict a way squeeze light from the vacuum of empty space 2019-03-29T04:00:00Z On December 3rd, the particle beams stopped humming. It’s Intermission for the Large Hadron Collider 2018-12-21T05:00:00Z The weapons fit into the palm of one hand and disabled human targets with some kind of invisible particle beam when fired. Read an excerpt from R.E. Stearns’ science fiction book Mutiny at Vesta 2018-09-13T04:00:00Z This allows physicists to use these materials to keep track of particle beams in experiments. Antimatter’s annihilation burns brightly 2018-04-15T04:00:00Z Paintings were rarely analysed with earlier versions of the accelerator because of fears that the particle beam might change the colours. Particle accelerator goes to work at Louvre 2017-11-23T05:00:00Z Candidate weapons included chemical lasers, particle beams and — Dr. Teller’s favorite — the X-ray laser, powered by a hydrogen bomb. George A. Keyworth II, Reagan Science Adviser, Dies at 77 2017-08-28T04:00:00Z Milner and his team say they believe a charged particle beam such as the free-electron laser could coax a dark photon out of hiding. What scientists plan to do with the most powerful electron beam in the world 2016-06-24T04:00:00Z Milner and his team believe a charged particle beam such as the free-electron laser could coax a dark photon out of hiding. Jefferson Lab’s DarkLight experiment to hunt dark photon 2016-06-25T04:00:00Z They put it in a particle beam to see how well it absorbed the energy of flying protons. How to poop like an astronaut 2015-11-23T05:00:00Z Directed energy refers to weapons that emit focused energy in the form of lasers, microwaves, electromagnetic radiation, radio waves, sound or particle beams. U.S. military sees more use of laser, microwave weapons 2015-07-28T04:00:00Z And after 2 years without a particle beam, a delay of a few weeks is worth waiting for, he says. Large Hadron Collider restart hits a snag 2015-03-24T04:00:00Z For more on smashing particle beams and other science and tech news, follow me on Twitter and Google +. CERN Scientists Find Two New Subatomic Particles Predicted By The Standard Model 2014-11-20T05:00:00Z And the accelerator system that supplies the LHC with its particle beams is up and running for the first time since 2012. Higgs boson spills secrets as collider powers up 2014-06-30T04:00:00Z The Large Hadron Collider has been shut down since early 2013 for maintenance and upgrades to its instruments and to the superconducting magnets that guide particle beams through it at high energies. Higgs particle linked to matter, not just force, particles : Nature News Blog 2014-06-22T04:00:00Z But increasingly, large national and international synchrotron and neutron source facilities are used to produce the powerful photon or particle beams needed for the most demanding experiments, such as detailed studies of complex macromolecules. Policy: Crystallography needs a governing body 2014-01-29T18:51:10.458Z This is in medicine, where particle beams are sometimes employed to zap tumours. Particle accelerators: Small really is beautiful 2013-10-17T15:02:27Z Do not think to destroy me with a particle beam. One meal a day 2013-08-07T17:51:20.607Z The U.S. military forged ahead with research on weapons using radiation, particle beams, nuclear energy, and kinetic energy. We tried to weaponize the weather 2013-04-27T19:00:00Z "A particle beam removes ions from the obsidian in extremely thin layers, it is like individually measuring the composition of each onion peel layer." Volcanic Artifacts Imply Ice-Age Mariners in Prehistoric Greece 2011-08-29T16:47:00Z These collisions can generate new particles which can then be picked up by detectors built at the points where particle beams cross over. US lab sees 'hints' of elusive particle 2011-07-24T14:57:46Z "If it had been just, 'Give us another beam', I wouldn't have been interested," he says, referring to X-rays, particle beams, magnetic resonance imaging and the many other tools that physicists had provided to medicine. Physics meets cancer: The disruptor 2011-06-01T17:20:30.187Z The LHC reached this beam energy last week, breaking its own particle beam energy record. Date set for start of LHC physics 2010-03-23T11:34:00Z 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 Selvin's battle computer counted down the enemy's distance and flashed estimates on when the enemy line would be optimally exposed to particle beam volleys. The Universe — or Nothing |
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