1. Efficient ion beam generation in laser foil interaction - toward a controllable laser ion accelerator
- Author
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Kawata, Shigeo, Takahashi, Kohki, Sato, Dai, Barada, Daisuke, Andreev, Alexander, Klimo, Ondrej, Limpouch, Jiri, Ma, Yan, Sheng, Zheng, Wang, Wei, Li, Yu, Kong, Qin, and Wang, Ping
- Subjects
Physics::Plasma Physics ,Physics::Accelerator Physics - Abstract
In this paper, we investigated and clarified the role of the hole thickness and width of the tailored multihole target at the laser side in the laser-proton energy conversion. The conversion efficiency was enhanced significantly to 16.7 % in the optimal microstructured target from a few percents in a planar target without the microstructre. The work in this paper presents an importance of target structure for the laser-ion conversion efficiency, as well as for the ion beam collimation. For practical applications of the laser-ion accelerator, the issues contain the efficient ion generation as dealt in this paper, the ion beam quality improvement in the energy spectrum control including a mono-energy ion beam generation, neutralized or unneutralized ion beam transportation for a long distance, etc. The multihole target presented in this paper may serve a new way to create ion beams efficiently in the future laser ion accelerator.
- Published
- 2011