Optimisation of the pointing stability of laser-wakefield accelerated electron beams
R. J. Garland, K. Poder, J. Cole, W. Schumaker, D. Doria, L. A. Gizzi, G. Grittani, K. Krushelnick, S. Kuschel, S. P. D. Mangles, Z. Najmudin, D. Symes, A. G. R… 展开作者
R. J. Garland, K. Poder, J. Cole, W. Schumaker, D. Doria, L. A. Gizzi, G. Grittani, K. Krushelnick, S. Kuschel, S. P. D. Mangles, Z. Najmudin, D. Symes, A. G. R. Thomas, M. Vargas, M. Zepf, G. Sarri
Laser-wakefield acceleration is a promising technique for the next generation of ultra-compact, high-energy particle accelerators. However, for a meaningful use of laser-driven particle beams it is necessary that they present a high degree of pointing stability in order to be injected into transport lines and further acceleration stages. Here we show a comprehensive experimental study of the main factors limiting the pointing stability of laser-wakefield accelerated electron beams. It is shown that gas-cells provide a much more stable electron generation axis, if compared to gas-jet targets, virtually regardless of the gas density used. A sub-mrad shot-to-shot fluctuation in pointing is measured and a consistent non-zero offset of the electron axis in respect to the laser propagation axis is found to be solely related to a residual angular dispersion introduced by the laser compression system and can be used as a precise diagnostic tool for compression oprtimisation in chirped pulse amplified lasers.
Stable 50 MeV Beams from a 100 Hz Laser-Wakefield Accelerator Driven by an OPCPA Laser
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), UMR 9012（伊雷娜·约里奥-居里双无穷大物理实验室）；Laboratoire d’Optique Appliquée (LOA), CNRS, École polytechnique, ENSTA, Institut Polytechnique de Paris（应用光学实验室）；Department of Physics, Lund University（隆德大学物理系）；FTMC – Center for Physical Sciences and Technology（物理科学与技术中心）；Helmholtz-Zentrum Dresden-Rossendorf（德累斯顿-罗斯多夫亥姆霍兹中心）
Wake Perturbations in Laser- and Beam-Driven Plasma Wakefield Accelerators: A Symmetry-Based Multipole Classification
Extreme Light Infrastructure – Nuclear Physics (ELI-NP)（极光大设施核物理部）；Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH)（霍里亚·胡利贝伊物理与核工程研发国家研究所）；INFN – Laboratori Nazionali di Frascati（意大利国家核物理研究所弗拉斯卡蒂国家实验室）
High-repetition-rate, all-reflective optical guiding and electron acceleration in helium using an off-axis axicon
ELI Beamlines Facility, The Extreme Light Infrastructure ERIC（ELI光束线设施，极端光基础设施欧洲研究基础设施联盟）；Czech Technical University in Prague（布拉格捷克理工大学）；University of Maryland（马里兰大学）
