Laser Acceleration of Highly Energetic Carbon Ions Using a Double-Layer Target Composed of Slightly Underdense Plasma and Ultrathin Foil

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Title
Laser Acceleration of Highly Energetic Carbon Ions Using a Double-Layer Target Composed of Slightly Underdense Plasma and Ultrathin Foil
Author(s)
Ma, WJ; I Jong Kim; Yu, JQ; IlWoo Choi; P. K. Singh; Hwang Woon Lee; Jae Hee Sung; Seong Ku Lee; Lin, C; Liao, Q; Zhu, JG; Lu, HY; Liu, B; Wang, HY; Xu, RF; He, XT; Chen, JE; Zepf, M; Schreiber, J; Yan, XQ; Chang Hee Nam
Publication Date
2019-01
Journal
PHYSICAL REVIEW LETTERS, v.122, no.1, pp.014803 -
Publisher
AMER PHYSICAL SOC
Abstract
We report the experimental generation of highly energetic carbon ions up to 48 MeV per nucleon by shooting double-layer targets composed of well-controlled slightly underdense plasma and ultrathin foils with ultraintense femtosecond laser pulses. Particle-in-cell simulations reveal that carbon ions are ejected from the ultrathin foils due to radiation pressure and then accelerated in an enhanced sheath field established by the superponderomotive electron flow. Such a cascaded acceleration is especially suited for heavy ion acceleration with femtosecond laser pulses. The breakthrough of heavy ion energy up to many tens of MeV/u at a high repetition rate would be able to trigger significant advances in nuclear physics, high energy density physics, and medical physics. © 2019 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/5751
ISSN
0031-9007
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
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