Development of a real-time ion spectrometer with a scintillator for laser-driven ion acceleration experiments

Xu Miao-Hua, Li Hong-Wei, Liu Bi-Cheng, Liu Feng , Su Lu-Ning, Du Fei, Zhang Lu, Zheng Yi, Missing Ma Jing-Long, David Neely, Paul McKenna, Wang Zhao-Hua, Wei Zhi-Yi, Yan Xue-Qing, Li Yu-Tong, Li Ying-Jun, Zhang Jie

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A real-time ion spectrometer mainly based on a high-resolution Thomson parabola and a plastic scintillator is designed and developed. The spectrometer is calibrated by protons from an electrostatic accelerator. The feasibility and reliability of the diagnostics are demonstrated in laser-driven ion acceleration experiments performed on the XL-II laser facility. The proton spectrum extrapolated from the scintillator data is in excellent agreement with the CR39 spectrum in terms of beam temperature and the cutoff energy. This real-time spectrometer allows an online measurement of the ion spectra in single shot, which enables efficient and statistical studies and applications in high-repetition-rate laser acceleration experiments.

Original languageEnglish
Article number095203
Number of pages4
JournalChinese Physics Letters
Issue number9
Publication statusPublished - Sep 2011


  • protons
  • spectrometer
  • ion spectrometer
  • lasers
  • ions

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