期刊
PHYSICAL REVIEW LETTERS
卷 102, 期 14, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.145002
关键词
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资金
- EPSRC [EP/E035728/1, EP/D/06337X/1]
- Royal Society
- Engineering and Physical Sciences Research Council [EP/E035728/1, EP/D06337X/1] Funding Source: researchfish
- EPSRC [EP/D06337X/1, EP/E035728/1] Funding Source: UKRI
A stable relativistic ion acceleration regime for thin foils irradiated by circularly polarized laser pulses is suggested. In this regime, the light-sail stage of radiation pressure acceleration for ions is smoothly connected with the initial relativistic hole-boring stage, and a defined relationship between laser intensity I(0), foil density n(0), and thickness l(0) should be satisfied. For foils with a wide range of n(0), the required I(0) and l(0) for the regime are theoretically estimated and verified with the particle-in-cell code ILLUMINATION. It is shown for the first time by 2D simulations that high-density monoenergetic ion beams with energy above GeV/u and divergence of 10 degrees are produced by circularly polarized lasers at intensities of 10(22) W/cm(2), which are within reach of current laser systems.
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