Comparison of Laser Ion Acceleration from the Front and Rear Surfaces of Thin Foils

Details Comparison of Laser Ion Acceleration from the Front and Rear Surfaces of Thin Foils Comparison of Laser Ion Acceleration from the Front and Rear Surfaces of Thin Foils

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005phrvl..94d5004f&link_type=abstract

Physical Review Letters, vol. 94, Issue 4, id. 045004

Statistics

Applications

66

Laser-Plasma Acceleration Of Electrons And Ions, Charged-Particle Beam Sources And Detectors, Monte Carlo Simulations, Particle Measurements

Scientific paper

The comparative efficiency and beam characteristics of high-energy ions generated by high-intensity short-pulse lasers (˜1 6×1019 W/cm2) from both the front and rear surfaces of thin metal foils have been measured under identical conditions. Using direct beam measurements and nuclear activation techniques, we find that rear-surface acceleration produces higher energy particles with smaller divergence and a higher efficiency than front-surface acceleration. Our observations are well reproduced by realistic particle-in-cell simulations, and we predict optimal criteria for future applications.

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