Measurements of energy and angular distribution of hot electrons and protons emitted from a p- and s-polarized intense femtosecond laser pulse driven thin foil target

Journal Article · Sat Apr 15 00:00:00 EDT 2006 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2192758· OSTI ID:20782759

Li, Z; Daido, H; Fukumi, A; Sagisaka, A; Ogura, K; Nishiuchi, M; Orimo, S; Hayashi, Y; Mori, M; Kado, M; Bulanov, S V; Esirkepov, T Zh; Oishi, Y; Nayuki, T; Fujii, T; Nemoto, K; Nakamura, S; Noda, A ^[1]

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1. Advanced Photon Research Center, Japan Atomic Energy Agency, Umeimidai 8-1, Kizu, Kyoto 619-0215 (Japan) and National Institute of Radiological Sciences, Anagawa 4-9-1, Inage, Chiba 263-8555 (Japan)

The energy spectra and angular distributions of hot electrons as well as protons emitted from a 3-{mu}m-thick tantalum foil irradiated by a 70-fs laser pulse with an intensity of {approx}10{sup 18} W/cm{sup 2} are measured. Three hot electron flows are found, in the rear target normal, specular, and target surface directions. The angular distribution of hot electrons is found to depend on the polarization of the incident light. The measured energy spectrum of hot electrons in the rear target normal direction can explain the generated proton beam.

• OSTI ID: 20782759
• Journal Information: Physics of Plasmas, Vol. 13, Issue 4; Other Information: DOI: 10.1063/1.2192758; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANGULAR DISTRIBUTION
ELECTRONS
EMISSION
ENERGY SPECTRA
FOILS
IRRADIATION
LASER-PRODUCED PLASMA
LASERS
LIGHT TRANSMISSION
PLASMA GUNS
PLASMA PRODUCTION
POLARIZATION
PROTON BEAMS
PROTONS
PULSES
TANTALUM
VISIBLE RADIATION