Bulletin of the American Physical Society
63rd Annual Meeting of the APS Division of Plasma Physics
Volume 66, Number 13
Monday–Friday, November 8–12, 2021; Pittsburgh, PA
Session BP11: Poster Session I:
BEAMS - Coherent radiation and intense laser-driven x-ray sources; Laser-plasma ion accelerators; Relativistic high-energy-density physics and high field physics
MFE - Low Aspect Ratio Tokamaks
9:30 AM - 12:30 PM
Monday, November 8, 2021
Room: Hall A
Abstract: BP11.00060 : Exploring the interaction between ultra-relativistic fireball beams and magnetized plasmas
Presenter:
Cinzia Chiappetta
(Physics Department, Lancaster University, Lancaster (UK))
Authors:
Cinzia Chiappetta
(Physics Department, Lancaster University, Lancaster (UK))
James Gold
(Physics Department, Lancaster University, Lancaster (UK))
Mariaelena Innocenti
(Department of Physics and Astronomy, Ruhr-Universität Bochum, Bochum (Germany)
Nitin Shukla
(SCAI, CINECA, Casalecchio di Reno (Italy))
Kevin M. Schoeffler
(GoLP/IPFN, Instituto Superior Técnico, Universidade de Lisboa, Lisbon (Portugal))
Elisabetta Boella
(Physics Department, Lancaster University, Lancaster (UK))
In this work, we investigate via multidimensional numerical simulations performed with the Particle-In-Cell code OSIRIS [2] the interaction between a neutral ultra-relativistic electron-positron beam and a magnetized plasma. Different degrees of magnetization are considered and their impact on the development of plasma micro instabilities is studied. The effect of the beam speed, temperature and size is also examined in order to envisage possible scenarios where the physics of the interaction could be probed in the laboratory, similarly to what is done for an unmagnetized plasma in Shukla et al. [3].
[1] Piran, Rev. Mod. Phys. 76, 1143 (2005). Medvedev et al., Astrophys. J. Lett. 618, L75 (2005).
[2] Fonseca et al. Plasma Phys. Control. Fusion 50, 124034 (2008).
[3] Shukla et al., J. Plasma Phys. 84, 3 (2018).
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