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Enhanced efficiency of femtosecond laser-driven proton generation from a two-species target with heavy atoms

Published online by Cambridge University Press:  08 April 2016

J. Domański ,
J. Badziak  and
S. Jabłoński
J. Domański*
Affiliation:
Institute of Plasma Physics and Laser Microfusion, Hery 23, 01-497 Warsaw, Poland
J. Badziak
Affiliation:
Institute of Plasma Physics and Laser Microfusion, Hery 23, 01-497 Warsaw, Poland
S. Jabłoński
Affiliation:
Institute of Plasma Physics and Laser Microfusion, Hery 23, 01-497 Warsaw, Poland
*
Address correspondence and reprint requests to: J. Domański, Institute of Plasma Physics and Laser Microfusion, Hery 23, 01-497 Warsaw, Poland. E-mail: [email protected]
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Abstract

Using two-dimensional particle-in-cell simulations, the properties of a proton beam generated from a thin erbium hydride target irradiated by a 25 fs laser pulse of intensity ranging from 1020 to 1021 W/cm2 are investigated and compared with the features of a proton beam produced from a hydrocarbon (CH) target. It is shown that in case of using the hydride target the mean proton energy and the number of high-energy (>10 MeV) protons as well as the peak proton pulse intensity can be higher by a factor ~10 than the ones obtained from the CH target.

Keywords

Laser accelerationLaser plasmaIonsParticle-in-cell simulations
Type
Research Article
Information
Laser and Particle Beams , Volume 34 , Issue 2 , June 2016 , pp. 294 - 298
Copyright
Copyright © Cambridge University Press 2016 

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