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Generation of quasi-monoenergetic protons from a double-species target driven by the radiation pressure of an ultraintense laser pulse

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Title
Generation of quasi-monoenergetic protons from a double-species target driven by the radiation pressure of an ultraintense laser pulse
Author(s)
Ki Hong Pae; Chul Min Kim; Chang Hee Nam
Publication Date
2016-03
Journal
PHYSICS OF PLASMAS, v.23, no.3, pp.033117 -
Publisher
AMER INST PHYSICS
Abstract
In laser-driven proton acceleration, generation of quasi-monoenergetic proton beams has been considered a crucial feature of the radiation pressure acceleration (RPA) scheme, but the required difficult physical conditions have hampered its experimental realization. As a method to generate quasi-monoenergetic protons under experimentally viable conditions, we investigated using double-species targets of controlled composition ratio in order to make protons bunched in the phase space in the RPA scheme. From a modified optimum condition and three-dimensional particle-in-cell simulations, we showed by varying the ion composition ratio of proton and carbon that quasi-monoenergetic protons could be generated from ultrathin plane targets irradiated with a circularly polarized Gaussian laser pulse. The proposed scheme should facilitate the experimental realization of ultrashort quasi-monoenergetic proton beams for unique applications in high field science. © 2016 AIP Publishing LLC
URI
https://pr.ibs.re.kr/handle/8788114/2456
ISSN
1070-664X
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
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