Modelling of pulse train generation for resonant laser wakefield acceleration using a delay mask
Authors: Vantaggiato G., Labate L., Tomassini P., Gizzi LA.
Autors Affiliation: Intense Laser Irradiation Laboratory, INO-CNR, Pisa, Italy; Istituto Nazionale di Fisica Nucleare, Sez., Pisa, Italy
Abstract: A new method for the generation of a train of pulses from a single high-energy, ultra short pulse is presented, suited for Resonant Multi-Pulse Ionization injection (Tomassini, 2017). The method is based on different transverse portion of the pulse being delayed by a “mask” sectioned in concentric zones with different thicknesses, in order to deliver multiple laser pulses. The mask is placed right before the last focusing parabola. A hole in the middle of the mask lets part of the original pulse to pass through to drive electron injection. In this paper a full numerical modelling of this scheme is presented. In particular we discuss the spatial and temporal profile of the pulses emerging from the mask and how they are related to the radius and thickness of each section.
Journal/Review: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume: 909 Pages from: 114 to: 117
More Information: This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 653782 (EuPRAXIA project), and from the MIUR funded Italian research Network ELI-Italy ( D.M.n. 631/16 ). We also acknowledge funding from the Italian MIUR through the PRIN project “Preclinical Tool for Advanced Translational Research with Ultrashort and Ultraintense X-ray Pulses” (prot. 20154F48P9 ).KeyWords: Laser wakefield acceleration; Multi-pulse generationDOI: 10.1016/j.nima.2018.02.024Connecting to view paper tab on IsiWeb: Click here