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Proceedings Paper

Electron-beam instability in the slab-symmetric dielectric structure and stabilization assisted by pre-ionized plasma
Author(s): Naotoshi Kirihara; Toshimitsu Nishino; Yasushi Nishida; Hiroaki Ito; Noboru Yugami
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Paper Abstract

The Vp X B acceleration scheme with use of a transverse electromagnetic wave is demonstrated experimentally. However, in order to couple particles with the transverse wave, a slow-wave structure has to be employed because of low electron beam velocity. When the electron beam propagated through the slow-wave structure composed of dielectric-loaded slab-symmetric waveguide in the present paper, an orbit of the beam because unstable. We have observed the electron beam instability to investigate its mechanisms. As a result, an electron beam in the dielectric-loaded waveguide is deflected to the opposite direction from the material on the waveguide wall. By adding the beam-generated plasma in the slow-wave structure the electron beam has been observe dot become stable.

Paper Details

Date Published: 11 January 2000
PDF: 8 pages
Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); doi: 10.1117/12.375151
Show Author Affiliations
Naotoshi Kirihara, Utsunomiya Univ. (Japan)
Toshimitsu Nishino, Utsunomiya Univ. (Japan)
Yasushi Nishida, Utsunomiya Univ. (Japan)
Hiroaki Ito, Utsunomiya Univ. (Japan)
Noboru Yugami, Utsunomiya Univ. (Japan)

Published in SPIE Proceedings Vol. 3886:
High-Power Lasers in Energy Engineering
Kunioki Mima; Gerald L. Kulcinski; William J. Hogan, Editor(s)

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