Ultraintense proton beams from laser-induced skin-layer ponderomotive acceleration

被引:40
|
作者
Badziak, J. [1 ]
Jablonski, S. [1 ]
Parys, P. [1 ]
Rosinki, M. [1 ]
Wolowski, J. [1 ]
Szydlowski, A. [2 ]
Antici, P. [3 ]
Fuchs, J. [3 ]
Mancic, A. [3 ]
机构
[1] EURATOM, Inst Plasma Phys & Laser Microfus, PL-00908 Warsaw, Poland
[2] Andrzej Soltan Inst Nucl Studies, PL-05400 Otwock, Poland
[3] Ecole Polytech, LULI, CNRS, CEA,UPMC, F-91128 Palaiseau, France
关键词
D O I
10.1063/1.2981199
中图分类号
O59 [应用物理学];
学科分类号
摘要
The results of studies of high-intensity proton beam generation from thin (1-3 mu m) solid targets irradiated by 0.35 ps laser pulse of energy up to 15 J and intensity up to 2 X 10(19) W/cm(2) are reported. It is shown that the proton beams. of terawatt power and intensity around 10(18) W/cm(2) at the source can be produced when the laser-target interaction conditions approach the skin-layer ponderomotive acceleration requirements. The proton beam parameters remarkably depend on the target structure and can be significantly increased with the use of a double-layer Au/PS target (plastic covered by 0.1-0.2 mu m in Au front layer). (c) 2008 American Institute of Physics.
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页数:6
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