Geodesic
Efficient ion beam generation in laser foil interaction – toward a controllable laser ion accelerator
Vestnik Sankt-Peterburgskogo universiteta. Prikladnaâ matematika, informatika, processy upravleniâ, no. 1 (2011), pp. 21-28
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A remarkable improvement on the energy conversion efficiency from laser to protons is demonstrated by particle simulations in a laser-foil interaction. The total laser-proton energy conversion efficiency becomes 16.7% in an optimized multi-hole target, though a conventional plane foil target serves a rather low efficiency of a small percentage. When an intense short-pulse laser illuminates the thin foil target, the foil electrons are accelerated around the target by the intense laser. The hot electrons generate a strong electric field, which accelerates the foil protons, and the proton beam is generated. In the previous study, we found that multihole thin-foil target is efficient for the energy conversion from laser to protons [Phys. Rev. E 78, 046401 (2008)], and the energy conversion efficiency was 9.3%. In this paper 2.5-dimensional particle-in-cell simulations are performed, and the results clarify the role of the target hole thickness and depth in the laser-proton energy conversion. The optimized multi-hole foil target provides a remarkable increase in the laser-proton energy conversion efficiency as shown above. Bibliogr. 6 items.
Keywords: intense laser accelerator, ion acceleration, ion accelerator.
Mots-clés : intense laser 
@article{VSPUI_2011_1_a2,
     author = {S. Kawata and K. Takahashi and D. Sato and D. Barada and A. A. Andreev and O. Klimo and J. Limpouch and Y. Y. Ma and Z. M. Sheng and W. M. Wang and Y. T. Li and Q. Kong and P. X. Wang},
     title = {Efficient ion beam generation in laser foil interaction~{\textendash} toward a controllable laser ion accelerator},
     journal = {Vestnik Sankt-Peterburgskogo universiteta. Prikladna\^a matematika, informatika, processy upravleni\^a},
     pages = {21--28},
     year = {2011},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/VSPUI_2011_1_a2/}
}
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AU  - S. Kawata
AU  - K. Takahashi
AU  - D. Sato
AU  - D. Barada
AU  - A. A. Andreev
AU  - O. Klimo
AU  - J. Limpouch
AU  - Y. Y. Ma
AU  - Z. M. Sheng
AU  - W. M. Wang
AU  - Y. T. Li
AU  - Q. Kong
AU  - P. X. Wang
TI  - Efficient ion beam generation in laser foil interaction – toward a controllable laser ion accelerator
JO  - Vestnik Sankt-Peterburgskogo universiteta. Prikladnaâ matematika, informatika, processy upravleniâ
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%A S. Kawata
%A K. Takahashi
%A D. Sato
%A D. Barada
%A A. A. Andreev
%A O. Klimo
%A J. Limpouch
%A Y. Y. Ma
%A Z. M. Sheng
%A W. M. Wang
%A Y. T. Li
%A Q. Kong
%A P. X. Wang
%T Efficient ion beam generation in laser foil interaction – toward a controllable laser ion accelerator
%J Vestnik Sankt-Peterburgskogo universiteta. Prikladnaâ matematika, informatika, processy upravleniâ
%D 2011
%P 21-28
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%G en
%F VSPUI_2011_1_a2
S. Kawata; K. Takahashi; D. Sato; D. Barada; A. A. Andreev; O. Klimo; J. Limpouch; Y. Y. Ma; Z. M. Sheng; W. M. Wang; Y. T. Li; Q. Kong; P. X. Wang. Efficient ion beam generation in laser foil interaction – toward a controllable laser ion accelerator. Vestnik Sankt-Peterburgskogo universiteta. Prikladnaâ matematika, informatika, processy upravleniâ, no. 1 (2011), pp. 21-28. http://geodesic.mathdoc.fr/item/VSPUI_2011_1_a2/

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