Abstract
We present the progress on the upgrade status of the J-KAREN-P , which is a Ti: Sapphire laser aiming at the intensity of 1022 W/cm2 at the repetition rate of 0.1 Hz. The upgrade includes two pilot experiments in order to show the laser performance on target. The first experiment is to generate high-energy ions from thin-foil target. The second experiment is the high-order harmonic at a relativistic intensity. Currently, laser acceleration of protons is being tested and we have obtained 32 MeV protons from a 5-µm stainless steel target irradiated by a 14-J, 30-fs laser pulse. In addition, a joint program toward compact X-ray free-electron laser based on laser electron acceleration is presented briefly and the corresponding J-KAREN-P work is presented.
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Acknowledgements
We thank J-KAREN-P operators for the help with construction and for the operation during the experimental campaigns. The electron acceleration and XFEL development are supported by ImPACT Program of Council for Science, Technology, and Innovation (Cabinet Office, Government of Japan). M. K. acknowledges Prof. Kodama, Prof. Hosokai, Prof. Yamamoto, Dr. Yabashi and Prof. Sasaki for collaborative work in the development of laser-driven XFEL sources and Program Manager Dr. Sano for the encouragement and support. A part of the work is supported by Japan Society for the Promotion of Science (JSPS) KAKENHI JP 26707031 and Ministry of Education, Culture, Sports, Science, and Technology (MEXT).
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Kando, M. et al. (2018). Research on Laser Acceleration and Coherent X-Ray Generation Using J-KAREN-P Laser. In: Kawachi, T., Bulanov, S., Daido, H., Kato, Y. (eds) X-Ray Lasers 2016. ICXRL 2016. Springer Proceedings in Physics, vol 202. Springer, Cham. https://doi.org/10.1007/978-3-319-73025-7_21
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DOI: https://doi.org/10.1007/978-3-319-73025-7_21
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