Cascade Acceleration of Electrons by Laser Wakefield and Direct Laser Field
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概要
- 論文の詳細を見る
Energetic electrons whose maximum energy exceeded 25 MeV were generated using a 2 TW 50 fs laser pulse and a plasma with an electron density of $n_{\text{e}} \gtrsim 2 \times 10^{20}$ cm-3. Although we observed first-Stokes satellite peaks in the forward-scattering light spectra, the electron energy was higher than that predicted by self-modulated laser wakefield acceleration (SMLWFA). The density dependence of the effective temperature of the electron beam disagrees with that predicted by direct laser acceleration (DLA). Experimental results suggest that the electrons were accelerated by a cascade of SMLWFA and DLA.
- 2006-05-15
著者
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KATO Susumu
National Institute of Advanced Industrial Science and Technology
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Ogata Atsushi
Institute Of Plasma Physics Nagoya University
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Miura Eisuke
National Inst. Advanced Industrial Sci. And Technol.(aist) Ibaraki Jpn
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Masuda Shin-ichi
National Institute Of Advanced Industrial Science And Technology (aist)
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Adachi Masahiro
Department Of Electrical And Electronic Engineering Faculty Of Engineering Tottori University
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Tanimoto Mitsumori
Department Of Electrical Engineering University Of Tokyo
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Koyama Kazuyoshi
National Institute Of Advanced Industrial Science And Technology
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Okamoto Hiromi
Department Of Chemistry Graduate School Of Science Osaka Prefecture University
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Tanimoto Mitsumori
Department of Electrical Engineering, Faculty of Physical Sciences and Engineering, Meisei University, 2-1-1 Hodokubo, Hino, Tokyo 191-8506, Japan
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Koyama Kazuyoshi
National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
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Watanabe Takayuki
Graduate School of Engineering, Faculty of Engineering, Utsunomiya University, 7-1-2 Yoto, Utsunomiya 321-8585, Japan
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Miura Eisuke
National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
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Masuda Shin-ichi
National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
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Ogata Atsushi
Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
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Adachi Masahiro
Department of Applied Chemistry, Faculty of Engineering, Tohoku University
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