X-ray free -
electron lasers generate flashes of X-ray light short and intense enough to make movies of chemical reactions and other ultrafast phenomena, but the electrons must have a very tight energy spread to generate the coherent X-rays necessary for a clear picture.
Not exact matches
Deflection of MeV
Electrons by Self -
Generated Magnetic Fields in Intense
Laser - Solid Interactions
Studies on the transport of high intensity
laser -
generated hot
electrons in cone coupled wire targets
Electrons thus accelerated could be wiggled by magnets to create a so - called free -
electron laser (FEL), which
generates exceptionally bright and brief flashes of x-rays that can illuminate short - lived chemical and biological phenomena.
Interactions between the
electrons and the accumulating photons as they travel through the undulator
generate coherent
laser light (Science, 10 May 2002, p. 1008).
He's done so by precisely focusing infrared
laser light to selectively ionize, or steal the
electrons from, air molecules at the beam's focal point,
generating a flash of bluish - white plasma.
Recording the energy of the
electrons that passed through the pulse
generates a crisp side - profile of the short
laser beam, not unlike a sporting photo - finish image (see right).
A quick flash of
laser light aimed at the well
generates pairs of
electrons and positively charged «holes» in the middle layer.
By using this high - power
laser, it is now possible to
generate all of the high - energy quantum beams (
electrons, ions, gamma ray, neutron, positron).
Arefiev co-authored the study, «Enhanced multi-MeV photon emission by a
laser - driven
electron beam in a self -
generated magnetic field,» published May 2016 in the journal Physical Review Letters.
Like the existing facility, LCLS - II will use
electrons accelerated to nearly the speed of light to
generate beams of extremely bright X-ray
laser light.
DARPA is looking at more efficient technologies, like fiber
lasers and liquid
lasers, which could lead to smaller, more compact devices, while the Navy is researching a Free
Electron Laser, an experimental technology that uses high - speed
electrons to
generate an extremely powerful focused beam of radiation.
But a new method that
generates supershort bursts of
laser light allowed researchers to nab a high - resolution shot of the elusive
electron.
A team working at the SACLA X-ray Free -
Electron Laser in Japan has succeeded in generating ultra-bright, two - color X-ray laser pulses, for the first time in the hard X-ray re
Laser in Japan has succeeded in
generating ultra-bright, two - color X-ray
laser pulses, for the first time in the hard X-ray re
laser pulses, for the first time in the hard X-ray region.
The ability to
generate attosecond
laser pulses effectively permits
electron motions to be «photographed.»
«We were selected to provide critical technologies that
generate the high - brightness and high - repetition - rate
electron beam that is the first component in the superconducting accelerator chain, and the undulators that are the core of the free -
electron laser X-ray source.
So all that is needed is a manetron, masser or
laser to
generate and beam
electrons into a system and you will increase the magnetic part of the wave and its force.