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Laser-plasma acceleration of quasi-monoenergetic protons from microsctructured targets

Schwoerer, H. and Pfotenhauer, S. and Jäckel, O. and Amthor, K.U. and Liesfeld, B. and Ziegler, W. and Sauerbrey, R. and Ledingham, K.W.D. and Esirkepov, T. (2006) Laser-plasma acceleration of quasi-monoenergetic protons from microsctructured targets. Nature, 439 (7075). pp. 445-448. ISSN 0028-0836

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Abstract

Particle acceleration based on high intensity laser systems (a process known as laser-plasma acceleration) has achieved high quality particle beams that compare favourably with conventional acceleration techniques in terms of emittance, brightness and pulse duration. A long-term difficulty associated with laser-plasma acceleration - the very broad, exponential energy spectrum of the emitted particles - has been overcome recently for electron beams. Here we report analogous results for ions, specifically the production of quasi-monoenergetic proton beams using laser-plasma accelerators. Reliable and reproducible laser-accelerated ion beams were achieved by intense laser irradiation of solid microstructured targets. This proof-of-principle experiment serves to illuminate the role of laser-generated plasmas as feasible particle sources. Scalability studies show that, owing to their compact size and reasonable cost, such table-top laser systems with high repetition rates could contribute to the development of new generations of particle injectors that may be suitable for medical proton therapy.

Item type: Article
ID code: 3043
Keywords: particle acceleration, lasers, protons, plasma, ions, nature, Plasma physics. Ionized gases, General
Subjects: Science > Physics > Plasma physics. Ionized gases
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Mr Derek Boyle
    Date Deposited: 27 Mar 2007
    Last modified: 04 Sep 2014 13:48
    URI: http://strathprints.strath.ac.uk/id/eprint/3043

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