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Title: Induction of electron injection and betatron oscillation in a plasma-waveguide-based laser wakefield accelerator by modification of waveguide structure

By adding a transverse heater pulse into the axicon ignitor-heater scheme for producing a plasma waveguide, a variable three-dimensionally structured plasma waveguide can be fabricated. With this technique, electron injection in a plasma-waveguide-based laser wakefield accelerator was achieved and resulted in production of a quasi-monoenergetic electron beam. The injection was correlated with a section of expanding cross-section in the plasma waveguide. Moreover, the intensity of the X-ray beam produced by the electron bunch in betatron oscillation was greatly enhanced with a transversely shifted section in the plasma waveguide. The technique opens a route to a compact hard-X-ray pulse source.
Authors:
; ;  [1] ;  [2] ;  [3] ;  [2] ; ;  [1] ;  [2] ;  [2] ;  [1] ;  [4] ;  [1] ;  [2] ;  [2]
  1. Department of Physics, National Central University, Jhong-Li 320, Taiwan (China)
  2. (China)
  3. Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan (China)
  4. Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan (China)
Publication Date:
OSTI Identifier:
22220662
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 8; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BEAM BUNCHING; BETATRON OSCILLATIONS; BETATRONS; ELECTRON BEAM INJECTION; ELECTRONS; HARD X RADIATION; HEATERS; INDUCTION; LASERS; LIGHT TRANSMISSION; MODIFICATIONS; PARTICLE BEAMS; PLASMA GUNS; PLASMA PRODUCTION; PULSES; WAKEFIELD ACCELERATORS; X-RAY SOURCES