Hannover 2013 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 22: Poster: Interaction with strong or short laser pulses
A 22.8: Poster
Dienstag, 19. März 2013, 16:00–18:30, Empore Lichthof
Dense Monoenergetic Proton Beams from Chirped Laser-Plasma Interaction — •Jianxing Li1, Benjamin J. Galow1, Yousef I. Salamin1,2, Zoltán Harman1,3, and Christoph H. Keitel1 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69029 Heidelberg, Germany — 2Department of Physics, American University of Sharjah, POB 26666, Sharjah, United Arab Emirates — 3ExtreMe Matter Institute EMMI, Planckstrasse 1, 64291 Darmstadt, Germany
Interactions of linearly and radially polarized frequency-chirped laser pulses with single protons and hydrogen gas targets are studied analytically and by means of particle-in-cell simulations, respectively. The feasibility of generating ultraintense (107 particles per bunch) and phase-space collimated beams of protons is demonstrated. Phase synchronization of the protons and the laser field, guaranteed by the appropriate chirping of the laser pulse, allows the particles to gain sufficient kinetic energy (around 250 MeV) required for such applications as hadron cancer therapy, from state-of-the-art laser systems of intensities of the order of 1021 W/cm2.