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Title: Production of a monoenergetic electron bunch in a self-injected laser-wakefield accelerator

Abstract

Production of a monoenergetic electron bunch in a self-injected laser-wakefield accelerator is investigated with a tomographic method which resolves the electron injection and acceleration processes. It is found that all the electrons in the monoenergetic electron bunch are injected at the same location in the plasma column and then accelerated with an acceleration gradient exceeding 2 GeV/cm. The injection position shifts with the position of pump-pulse focus, and no significant deceleration is observed for the monoenergetic electron bunch after it reaches the maximum energy. The results are consistent with the model of transverse wave breaking and beam loading for the injection of monoenergetic electrons. The tomographic method adds a crucial dimension to the whole array of existing diagnostics for laser beams, plasma waves, and electron beams. With this method the details of the underlying physical processes in laser-plasma interactions can be resolved and compared directly to particle-in-cell simulations.

Authors:
; ;  [1];  [1];  [2];  [3];  [1];  [2];  [2];  [1];  [2]
  1. Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan (China)
  2. (China)
  3. Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan (China)
Publication Date:
OSTI Identifier:
21072407
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; Journal Volume: 75; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevE.75.036402; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE; ACCELERATION; BEAM BUNCHING; COMPUTERIZED SIMULATION; ELECTRON BEAM INJECTION; ELECTRON BEAMS; ELECTRONS; GEV RANGE; LASERS; PLASMA; PLASMA GUNS; PLASMA WAVES; PULSES; WAKEFIELD ACCELERATORS

Citation Formats

Chang, C.-L., Hsieh, C.-T., Ho, Y.-C., Chen, Y.-S., Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan, Lin, J.-Y., Wang, J., Department of Physics, National Central University, Jhong-Li 320, Taiwan, Department of Physics, National Taiwan University, Taipei, 106, Taiwan, Chen, S.-Y., and Department of Physics, National Central University, Jhong-Li 320, Taiwan. Production of a monoenergetic electron bunch in a self-injected laser-wakefield accelerator. United States: N. p., 2007. Web. doi:10.1103/PHYSREVE.75.036402.
Chang, C.-L., Hsieh, C.-T., Ho, Y.-C., Chen, Y.-S., Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan, Lin, J.-Y., Wang, J., Department of Physics, National Central University, Jhong-Li 320, Taiwan, Department of Physics, National Taiwan University, Taipei, 106, Taiwan, Chen, S.-Y., & Department of Physics, National Central University, Jhong-Li 320, Taiwan. Production of a monoenergetic electron bunch in a self-injected laser-wakefield accelerator. United States. doi:10.1103/PHYSREVE.75.036402.
Chang, C.-L., Hsieh, C.-T., Ho, Y.-C., Chen, Y.-S., Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan, Lin, J.-Y., Wang, J., Department of Physics, National Central University, Jhong-Li 320, Taiwan, Department of Physics, National Taiwan University, Taipei, 106, Taiwan, Chen, S.-Y., and Department of Physics, National Central University, Jhong-Li 320, Taiwan. Thu . "Production of a monoenergetic electron bunch in a self-injected laser-wakefield accelerator". United States. doi:10.1103/PHYSREVE.75.036402.
@article{osti_21072407,
title = {Production of a monoenergetic electron bunch in a self-injected laser-wakefield accelerator},
author = {Chang, C.-L. and Hsieh, C.-T. and Ho, Y.-C. and Chen, Y.-S. and Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan and Lin, J.-Y. and Wang, J. and Department of Physics, National Central University, Jhong-Li 320, Taiwan and Department of Physics, National Taiwan University, Taipei, 106, Taiwan and Chen, S.-Y. and Department of Physics, National Central University, Jhong-Li 320, Taiwan},
abstractNote = {Production of a monoenergetic electron bunch in a self-injected laser-wakefield accelerator is investigated with a tomographic method which resolves the electron injection and acceleration processes. It is found that all the electrons in the monoenergetic electron bunch are injected at the same location in the plasma column and then accelerated with an acceleration gradient exceeding 2 GeV/cm. The injection position shifts with the position of pump-pulse focus, and no significant deceleration is observed for the monoenergetic electron bunch after it reaches the maximum energy. The results are consistent with the model of transverse wave breaking and beam loading for the injection of monoenergetic electrons. The tomographic method adds a crucial dimension to the whole array of existing diagnostics for laser beams, plasma waves, and electron beams. With this method the details of the underlying physical processes in laser-plasma interactions can be resolved and compared directly to particle-in-cell simulations.},
doi = {10.1103/PHYSREVE.75.036402},
journal = {Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics},
number = 3,
volume = 75,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}