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The influence of target material and thickness on proton energy and angular distribution

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Abstract

The paper has studied the influence of target material and thickness on energy and angular distributions of the protons generated by using an 800 nm, 60 fs, 0.24 J laser pulse to irradiate solid target foils. The results show that the initial density and thickness of the targets will affect the formation of the acceleration sheath fields in the target normal direction. For the same target thickness, using lower density target materials can obtain a higher proton maximum energy. However, lower density targets tend to be deformed due to the shock waves launched by the laser pulses, making the proton spatial distribution more divergent.

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Authors and Affiliations

  1. Bei**g National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Bei**g, 100190, China

    LuNing Su, BiCheng Liu, **aoXuan Lin, Feng Liu, Fei Du, **aoLong Liu, Yi Zheng, XuLei Ge, YuTong Li, ZhengMing Sheng, LiMing Chen, WeiMin Wang, **gLong Ma, **n Lu, ZhiYi Wei & Jie Zhang

  2. State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, Peking University, Bei**g, 100871, China

    BiCheng Liu & JiaEr Chen

  3. Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics, Shanghai Jiao Tong University, Shanghai, 200240, China

    ZhengMing Sheng & Jie Zhang

Authors
  1. LuNing Su
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  2. BiCheng Liu
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  3. **aoXuan Lin
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  4. Feng Liu
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  6. **aoLong Liu
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  7. Yi Zheng
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  9. YuTong Li
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  10. ZhengMing Sheng
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  12. WeiMin Wang
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  13. **gLong Ma
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  14. **n Lu
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  15. ZhiYi Wei
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  16. JiaEr Chen
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  17. Jie Zhang
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Corresponding authors

Correspondence to YuTong Li or Jie Zhang.

Additional information

Contributed by CHEN JiaEr (CAS Academician) & ZHANG Jie (CAS Academician

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Su, L., Liu, B., Lin, X. et al. The influence of target material and thickness on proton energy and angular distribution. Sci. China Phys. Mech. Astron. 56, 457–461 (2013). https://doi.org/10.1007/s11433-012-4961-9

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  • DOI: https://doi.org/10.1007/s11433-012-4961-9

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