Generation of high-quality proton beam in nanobrush targets driven by PW laser pulse

Yang Yue; Sun Bin; Deng Zhigang; Teng Jian; He Shukai; Zhang Bo; Wang Shaoyi; Zhang Zhimeng; Yu Minghai; Wen Jiaxing; Tan Fang; Yan Yonghong; Wang Zitao; Zhou Kainan; Chen Zhongjing; Wu Yuchi; Zhou Weimin; Gu Yuqiu; Zhao Zongqing

doi:10.11884/HPLPB202436.230440

Volume 36 Issue 1

Jan. 2024

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Yang Yue, Sun Bin, Deng Zhigang, et al. Generation of high-quality proton beam in nanobrush targets driven by PW laser pulse[J]. High Power Laser and Particle Beams, 2024, 36: 101004. doi: 10.11884/HPLPB202436.230440

Citation:

Yang Yue, Sun Bin, Deng Zhigang, et al. Generation of high-quality proton beam in nanobrush targets driven by PW laser pulse[J]. High Power Laser and Particle Beams, 2024, 36: 101004. doi: 10.11884/HPLPB202436.230440

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Generation of high-quality proton beam in nanobrush targets driven by PW laser pulse

doi: 10.11884/HPLPB202436.230440

Laser Fusion Research Center, CAEP, Mianyang 621900, China

Received Date: 2023-12-17
Accepted Date: 2024-01-13
Rev Recd Date: 2024-01-11

Available Online: 2024-01-17

Publish Date: 2024-01-15

Abstract

Abstract

High-energy proton beam sources produced by ultra-intense laser acceleration have wide application prospects in basic physics, materials science, biomedical research and other fields. Based on SILEX-II device of Laser Fusion Research Center, the experimental studies on proton acceleration of nanobrush targets driven by high-contrast femtosecond PW laser pulse have been carried out. Plasma mirror technology was used to further improve the laser contrast, which effectively reduces the influence of pre-pulse on the structure of the nanobrush target. Compared with planar target, the proton cut-off energy of nanobrush targets increased to 1.5 times, and the proton beam yield increased by nearly one order of magnitude. This successfully verifies the enhancement of nanobrush targets on laser ion acceleration at ultra-high power density, and the improved uniformity of the proton beam spatial distribution. These results provide a technical way for the generation and application of high-quality proton beam sources.
- nanobrush targets,
- laser ion acceleration,
- plasma mirror,
- high-quality proton beam

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References

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