High energy proton beam from a laser irradiated thin-foil target and its possible applications

High energy proton beam from a laser irradiated thin-foil target and its possible applications

In this paper, we present the motivation and future prospects of the laser‐driven proton generation and its application to the medical accelerators. Then we present the experimental results of the high energy proton beam produced by a Ta 3 µm target irradiated with a 3 × 1018 W cm–2, ∼70 fs pulse la...

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Veröffentlicht in:Laser physics letters 2006-03, Vol.3 (3), p.162-167
Hauptverfasser: Nishiuchi, M., Fukumi, A., Daido, H., Li, Z., Sagisaka, A., Ogura, K., Orimo, S., Kado, M., Hayashi, Y., Mori, M., Bulanov, S. V., Esirkepov, T., Nemoto, K., Oishi, Y., Nayuki, T., Fujii, T., Noda, A., Nakamura, S.
Format: Artikel
Sprache:eng
Schlagworte:
ion acceleration
laser plasma
possible applications
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Zusammenfassung:In this paper, we present the motivation and future prospects of the laser‐driven proton generation and its application to the medical accelerators. Then we present the experimental results of the high energy proton beam produced by a Ta 3 µm target irradiated with a 3 × 1018 W cm–2, ∼70 fs pulse laser. The measured proton spectra can be divided into three parts; lowenergy, high‐energy, and cut‐off. We propose the possible acceleration mechanism which describes our data, and the resultant problems which we should solve to reach our objectives. (© 2006 by Astro, Ltd. Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA)
ISSN:1612-2011
1612-202X
DOI:10.1002/lapl.200510071