13–19 Sept 2015
La Biodola, Isola d'Elba
Europe/Rome timezone

Influence of realistic plasma density profile on ionization-induced electron injection driven by laser wakefield

15 Sept 2015, 15:20
20m
SBIO Sala Biodola (Hotel Biodola)

SBIO Sala Biodola

Hotel Biodola

talk WG5 - High-gradient plasma structures/Advanced beam diagnostics WG5 - High-gradient plasma structures/Advanced beam diagnostics

Speaker

Mr Thomas Audet (Laboratoire de physique des Gazs e des Plasmas, CNRS UMR - Université Paris Sud)

Description

Several important issues have to be addressed to optimize a laser plasma accelerator (LPA) for specific applications. In particular, for high energy physics, a multi-staged scheme consisting of one injector and several LPA stages connected by transmission lines appears most promising. In the frame of the CILEX project, multi-stage experiments are planned with the multi-PW facility APOLLON. On-going studies are related to the development of the plasma target and characterization of the electron bunch produced by ionization-induced injection. A gas cell with variable length was designed and built by the LPGP and LIDyL groups. Using this cell, the laser-plasma acceleration of a relativistic electron beam was investigated during an experimental campaign at the Lund Laser Centre in Sweden. A wide range of parameters have been explored, such as the pressure and composition of the gas, the cell length and its position relatively to the focal plane. We will focus on the role of the density profile and the relative focal plane position by comparison of the experimental data with theoretical ones obtained with 2D PIC numerical simulations using the WARP code.

Primary author

Mr Thomas Audet (Laboratoire de physique des Gazs e des Plasmas, CNRS UMR - Université Paris Sud)

Co-authors

Mr Antoine Maitrallain (CEA Saclay) Dr Bastian Aurand (Department of physics; Lund University) Dr Brigitte CROS (LPGP-CNRS-UP11) Prof. Claes-Göran Wahlström (Lund University) Mr Frédéric Guillaume Desforges (Laboratoire de Physique des Gaz et des Plasmas, Université Paris-Sud XI) Dr Gilles Maynard (Laboratoire de Physique des Gaz et des Plasmas; CNRS-University Paris-Sud) Mrs Isabel Gallardo Gonzales (Department of Physics, Lund University) Mr Martin Hansson (Atomic Physics, Lund University) Dr Olle Lundh (Lund University) Mr Patrick Lee (Laboratoire de Physique des Gaz et des Plasmas) Dr sandrine Dobosz Dufrénoy (CEA-Saclay)

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