会議発表用資料 The precise measurement of laser-accelerated ions using CR-39 detectors

Kanasaki, Masato  ,  Jinno, Satoshi  ,  Sakaki, Hironao  ,  Kondo, Kiminori  ,  Oda, Keiji  ,  Yamauchi, Tomoya  ,  Fukuda, Yuuji

2016-12-04
内容記述
The laser-driven ion acceleration via the interaction of ultrashort, intense laser pulses with matter, known as laser-plasma acceleration, is featured by its high accelerating electric fields and short pulse length compared to conventional rf-accelerators. The precise quantitative characterization of laser-accelerated ion beams in both space and energy domains is a critical issue in understanding the physics of the laser-driven ion acceleration process. To characterize the ion beam, CR-39 detectors have been used for a long time in laser-driven ion acceleration experiments as the most reliable detector. This is because CR-39 detectors have the great advantage of being insensitive to high-energy photons and electrons. In addition, CR-39 detectors are robust against electromagnetic pulses (EMP) from intense laser-plasma interactions, thus, it would be suitable for the future ion acceleration experiments using multi-PW class lasers. The potential abilities of CR-39 detectors enable us to discuss the laser-driven ion acceleration mechanism based on qualitative information on laser-accelerated ions provided by the analysis of etch pit structures on CR-39 detectors. Therefore, CR-39 detectors are the most qualified candidate detector for characterization of the laser accelerated ions. In the poster presentation, the measurement methods for laser-accelerated ions using CR-39 detector will be discussed with the outline of the laser-driven ion acceleration experiment and the other ion beam diagnosis technique.
The 12th International Workshop on Ionizing Radiation Monitoring
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