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TY - CONF AU - Wang, P.J. AU - Cao, Z.X. AU - Gao, G.Y. AU - Geng, Y.X. AU - Kong, D.F. AU - Lin, C. AU - Liu, JB. AU - Lu, H.Y. AU - Ma, W.J. AU - Mei, Z.S. AU - Pan, Z.P. AU - Shou, Y.R. AU - Wang, D.H. AU - Xu, S.R. AU - Yan, X.Q. AU - Zhao, Y.Y. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - A Simple Way to Introduce an Ajustable Femtosecond Pre-Pulse to Enhance Laser-Driven Proton Acceleration J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - We demonstrate a simple way to introduce a femtosecond pre-pulse with adjustable intensity and delay without using an additional compressor to enhance laser-driven proton acceleration. Targets with different thicknesses were shoot at normal incidence by varying the pre-pulses. Experimental results show that significant enhancement on the proton energy can be achieved when the intensity of pre-pulse is optimized. Density profile of preplasma was obtained by bydrodynamic simulations. PIC simulations reveal that the preplasma generated by a femtosecond pre-pulse can increase the intensity of main pulse. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3686 EP - 3688 KW - target KW - laser KW - proton KW - plasma KW - acceleration DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-THPGW045 UR - http://jacow.org/ipac2019/papers/thpgw045.pdf ER -