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Proceedings Paper

Self-modulated wakefield excitation in 40-TW laser-plasma and electron acceleration
Author(s): Yoneyoshi Kitagawa; Michiaki Mori; Yoshihiro Murakami; Ryosuke Kodama; Hideaki Habara; Kiyonobu Sawai; Kenji Suzuki; Tetsuji Kawasaki; Kazuo A. Tanaka; Kunioki Mima
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Paper Abstract

Illuminating a 40TW chirped pulse amplified laser on 0.01 critical density hydrogen plasma, we obtain a self-modulated wavefield in the relativistic region, whose amplitude is 24 percent of the average density, or the accelerating field is 160 GV/m. The laser beam is relativistically self-focused, which in turn confined the plasma wave within 0.4 mm diameter over 1 mm axial length. The dephasing distance implies an electron acceleration to 48 MeV, which is consistent with the observation of the averaged energy 35 MeV. Protons of 7 MeV are observed.

Paper Details

Date Published: 11 January 2000
PDF: 8 pages
Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); doi: 10.1117/12.375098
Show Author Affiliations
Yoneyoshi Kitagawa, Institute of Laser Engineering/Osaka Univ. (Japan)
Michiaki Mori, Institute of Laser Engineering/Osaka Univ. (Japan)
Yoshihiro Murakami, Institute of Laser Engineering/Osaka Univ. (Japan)
Ryosuke Kodama, Institute of Laser Engineering/Osaka Univ. (Japan)
Hideaki Habara, Institute of Laser Engineering/Osaka Univ. (Japan)
Kiyonobu Sawai, Institute of Laser Engineering/Osaka Univ. (Japan)
Kenji Suzuki, Institute of Laser Engineering/Osaka Univ. (Japan)
Tetsuji Kawasaki, Institute of Laser Engineering/Osaka Univ. (Japan)
Kazuo A. Tanaka, Institute of Laser Engineering/Osaka Univ. (Japan)
Kunioki Mima, Institute of Laser Engineering/Osaka 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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