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Proceedings Paper

Energetic proton beams from plastic targets irradiated by an ultra-intense laser pulse
Author(s): Kitae Lee; Ji-Young Lee; Seong Hee Park; Yong-Ho Cha; Kyung-Nam Kim; Young Uk Jeong
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Paper Abstract

It has been found that more intense proton beams are generated from plastic foils than metal foils irradiated by an ultraintense laser pulse. The acceleration model, ARIE (Acceleration by a Resistively Induced Electric field) accounts for the experimental observations from plastic foils compared with metal foils. Proton beams on foil thickness and laser prepulse have been observed, which is also well described by the ARIE model. An experiment with an aluminum-coated plastic target strongly suggests that front side acceleration is a dominant acceleration process in plastic targets. We also suggest that a vacuum-sandwiched double layer target could effectively enhance the laser contrast ratio, which was investigated in the combination of a two-dimensional hydro code and a two-dimensional PIC (Particle-In-Cell) code.

Paper Details

Date Published: 26 May 2011
PDF: 6 pages
Proc. SPIE 8079, Laser Acceleration of Electrons, Protons, and Ions; and Medical Applications of Laser-Generated Secondary Sources of Radiation and Particles, 80790U (26 May 2011); doi: 10.1117/12.887159
Show Author Affiliations
Kitae Lee, Korea Atomic Energy Research Institute (Korea, Republic of)
Ji-Young Lee, Korea Atomic Energy Research Institute (Korea, Republic of)
Seong Hee Park, Korea Atomic Energy Research Institute (Korea, Republic of)
Yong-Ho Cha, Korea Atomic Energy Research Institute (Korea, Republic of)
Kyung-Nam Kim, Korea Atomic Energy Research Institute (Korea, Republic of)
Kongju National Univ. (Korea, Republic of)
Young Uk Jeong, Korea Atomic Energy Research Institute (Korea, Republic of)


Published in SPIE Proceedings Vol. 8079:
Laser Acceleration of Electrons, Protons, and Ions; and Medical Applications of Laser-Generated Secondary Sources of Radiation and Particles
Wim P. Leemans; Kenneth W. D. Ledingham; Eric Esarey; Simon M. Hooker, Editor(s)

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