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

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• 作者：LuNing Su (1)
  BiCheng Liu (1) (2)
  XiaoXuan Lin (1)
  Feng Liu (1)
  Fei Du (1)
  XiaoLong Liu (1)
  Yi Zheng (1)
  XuLei Ge (1)
  YuTong Li (1)
  ZhengMing Sheng (1) (3)
  LiMing Chen (1)
  WeiMin Wang (1)
  JingLong Ma (1)
  Xin Lu (1)
  ZhiYi Wei (1)
  JiaEr Chen (2)
  Jie Zhang (1) (3)
  
• 关键词：laser ; driven ; proton ; acceleration
• 刊名：SCIENCE CHINA Physics, Mechanics & Astronomy
• 出版年：2013
• 出版时间：February 2013
• 年：2013
• 卷：56
• 期：2
• 页码：457-461
• 全文大小：451KB
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• 作者单位：LuNing Su (1)
  BiCheng Liu (1) (2)
  XiaoXuan Lin (1)
  Feng Liu (1)
  Fei Du (1)
  XiaoLong Liu (1)
  Yi Zheng (1)
  XuLei Ge (1)
  YuTong Li (1)
  ZhengMing Sheng (1) (3)
  LiMing Chen (1)
  WeiMin Wang (1)
  JingLong Ma (1)
  Xin Lu (1)
  ZhiYi Wei (1)
  JiaEr Chen (2)
  Jie Zhang (1) (3)
  
  1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
  2. State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, Peking University, Beijing, 100871, China
  3. Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics, Shanghai Jiao Tong University, Shanghai, 200240, China
  
• ISSN：1869-1927

文摘

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.