Sep 24 – 30, 2017
La Biodola, Isola d'Elba
Europe/Rome timezone

Matched electron beams in multi stage laser wakefield acceleration.

Sep 26, 2017, 6:35 PM
15m
SE, Sala Elena, HH

SE, Sala Elena, HH

talk WG8 - Advanced and novel accelerators for High Energy Physics WG8_Parallel

Speaker

Mrs Daria Pugacheva (JIHT RAS)

Description

A perspective scheme of accelerators suitable for high energy physics experiments is a multi stage laser wakefield acceleration. Relativistic electron bunch accelerated in the laser wakefields undergoes betatron oscillations and emits synchrotron radiation that affects the dynamics of electron motion and polarization. A model for numerical simulation of the acceleration of polarized electrons has been developed in Ref. [1]. In this work, to describe the synchrotron radiation of particles the radiative reaction force in the Landau-Lifshitz form was used and quantum recoil effects were taken into account. In simulations, an electron bunch was accelerated in preformed plasma channel with the initial emittance matched to the averaged focusing forces. To preserve the beam emittance during transport between stages, the adiabatically decreasing plasma density and an increasing channel radius were used at the exit of accelerating stages [2]. The evolution of beam emittance during acceleration is studied and the final depolarization of accelerated electrons is estimated. This work was supported by the Russian Science Foundation (Project No. 14-50-00124). [1] D.V. Pugacheva, N.E. Andreev, Quantum Electronics 46 (2016) 88 [2] P. Tomassini, A. R. Rossi, Plasma Phys. Control. Fusion 58 (2016) 034001

Primary author

Mrs Daria Pugacheva (JIHT RAS)

Co-author

Prof. Nikolay Andreev (Joint Institute for High Temperatures of RAS)

Presentation materials

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