dc.citation.conferencePlace |
US |
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dc.citation.conferencePlace |
Savannah |
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dc.citation.title |
DPP, APS |
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dc.contributor.author |
Kim, Young Kuk |
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dc.contributor.author |
Hur, Min Sup |
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dc.date.accessioned |
2023-12-19T21:36:21Z |
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dc.date.available |
2023-12-19T21:36:21Z |
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dc.date.created |
2016-01-11 |
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dc.date.issued |
2015-11-20 |
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dc.description.abstract |
We investigated the effects of relativistic transparency (RT) on electrostatic shock ion acceleration. Penetrating portion of the laser pulse directly heats up the electrons to a very high temperature in backside of the target, resulting in a condition of high shock velocity. The reflected portion of the pulse can yield a fast hole boring and density compression in near-critical density plasma to satisfy the electrostatic shock condition; 1.5 \textless M \textless 3.7. The high speed electrostatic shock reflects upstream ions up to velocity \textasciitilde 2vsh. In 1D PIC simulation, we have clearly observed RT-based shock acceleration which generates significantly higher ion beam energy in comparison to that in a purely opaque plasma. In multi-dimensional systems, various instabilities should be considered such as Weibel-like instability, which causes filamentation during the laser penetration. From series of comparisons of linearly polarized and circularly polarized pulses for the RT-based shock, we observed the circularly polarized pulse is usually more advantageous in reducing the instability, possibly leading to better RT-based shock acceleration. |
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dc.identifier.bibliographicCitation |
DPP, APS |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/41627 |
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dc.identifier.url |
http://meetings.aps.org/Meeting/DPP15/Session/YP12.80 |
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dc.language |
영어 |
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dc.publisher |
미국물리학회 (APS) |
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dc.title |
Enhanced Ion Beam Energy by Relativistic Transparency in Laser-driven Shock Ion Acceleration |
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dc.type |
Conference Paper |
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dc.date.conferenceDate |
2015-11-16 |
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