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Title: High-gain X-ray free electron laser by beat-wave terahertz undulator

The THz undulator has a higher gain to realize a much brighter X-ray at saturation, compared with the optical undulator under the same undulator strength and beam quality. In order to fill the high-power THz gap and realize the THz undulator, two superimposed laser pulses at normal incidence to the electron-beam moving direction form an equivalent high-field THz undulator by the frequency difference to realize the high-gain X-ray Free electron laser. The pulse front tilt of lateral fed lasers is used to realize the electron-laser synchronic interaction. By PIC simulation, a higher gain and a larger X-ray radiation power by the beat wave THz undulator could be realized, compared with the optical undulator for the same electron beam parameters.
Authors:
;  [1] ;  [2] ; ;  [3]
  1. Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an City 710024 (China)
  2. (China)
  3. SLAC National Accelerator Laboratory, Stanford University, Stanford, California 94309 (United States)
Publication Date:
OSTI Identifier:
22218365
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 12; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPARATIVE EVALUATIONS; COMPUTERIZED SIMULATION; ELECTRON BEAMS; ELECTRONS; FREE ELECTRON LASERS; GAIN; LASER RADIATION; PHOTON BEAMS; PULSES; THZ RANGE; WIGGLER MAGNETS; X-RAY LASERS