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The generation of high-quality, intense ion beams by ultra- intense lasers

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons60548

Hegelich,  M.
Laser Plasma Physics, Max Planck Institute of Quantum Optics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons60597

Karsch,  S.
Laboratory for Attosecond Physics, Max Planck Institute of Quantum Optics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons60703

Meyer-ter-Vehn,  J.
Laboratory for Attosecond Physics, Max Planck Institute of Quantum Optics, Max Planck Society;
Laser Plasma Physics, Max Planck Institute of Quantum Optics, Max Planck Society;

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Zitation

Roth, M., Allen, M., Audebert, P., Blazevic, A., Brambrink, E., Cowan, T. E., et al. (2002). The generation of high-quality, intense ion beams by ultra- intense lasers. Plasma Physics and Controlled Fusion, 44(Suppl. 12B), B99-B108. Retrieved from http://stacks.iop.org/0741-3335/44/99.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-C19B-8
Zusammenfassung
Intense beams of protons and heavy ions have been observed in ultra-intense laser-solid interaction experiments. Thereby, a considerable fraction of the laser energy is transferred to collimated beams of energetic ions (e.g. UP to 50MeV protons; 100MeV fluorine), which makes these beams highly interesting for various applications. Experimental results indicate a very short-pulse duration and an excellent beam quality, leading to beam intensities in the TW range. To characterize the beam quality and its dependence on laser parameters and target conditions we performed experiments using the 100 TW laser system at Laboratoire pour l'Utilisation des Lasers Intenses at the Ecole Polytechnique, France, with focused intensities exceeding 1019 W cm-2. We found a strong dependence on the target rear surface conditions allowing to tailor the ion beam by an appropriate target design. We also succeeded in the generation of heavy ion beams by suppressing the proton amount at the target surface. We will present recent experimental results demonstrating a transverse beam emittance far superior to the accelerator based ion beams. Finally, we will discuss the prospect of laser accelerated ion beams as new diagnostics in laser-solid interaction experiments. Special fields of interest are proton radiography, electric field imaging, and relativistic electron transport inside the target.