Oxford Centre for High Energy Density Science (OxCHEDS)

Research group

Research theme

Sub department

About

Related research groups

The study of parametric instabilities relevant to Laser-Plasma interactions in Fast Ignition

39th EPS Conference on Plasma Physics 2012, EPS 2012 and the 16th International Congress on Plasma Physics 2 (2012) 938-941

Authors:

KA Humphrey, DC Speirs, R Trines, P Norreys, M King, K Ronald, ADR Phelps, RA Cairns, LO Silva, F Fiuza, R Bingham

Transverse beam profile measurements of laser accelerated electrons using coherent optical radiation

AIP Conference Proceedings 1507 (2012) 258-261

Authors:

N Bourgeois, M Heigoldt, W Rittershofer, A Popp, K Khrennikov, SI Bajlekov, S Karsh, SM Hooker

Abstract:

We use coherent optical transition radiation (COTR) to measure the transverse profile of laser-accelerated electron bunches. The retrieved electron beam profiles are compared to scintillator-based beam profile measurements. © 2012 American Institute of Physics.
More details from the publisher
More details

Modelling of Silicon in inertial confinement fusion conditions

High Energy Density Physics Elsevier 8:4 (2012) 307-312

Authors:

EG Hill, SJ Rose
More details from the publisher

Diffusive shock acceleration at laser driven shocks: studying cosmic-ray accelerators in the laboratory

(2012)

Authors:

B Reville, AR Bell, G Gregori
More details from the publisher

FLASH magnetohydrodynamic simulations of shock-generated magnetic field experiments

High Energy Density Physics 8:4 (2012) 322-328

Authors:

P Tzeferacos, M Fatenejad, N Flocke, G Gregori, DQ Lamb, D Lee, J Meinecke, A Scopatz, K Weide

Abstract:

We report the results of benchmark FLASH magnetohydrodynamic (MHD) simulations of experiments conducted by the University of Oxford High Energy Density Laboratory Astrophysics group and its collaborators at the Laboratoire pour l'Utilisation des Lasers Intenses (LULI). In these experiments, a long-pulse laser illuminates a target in a chamber filled with Argon gas, producing shock waves that generate magnetic fields via the Biermann battery mechanism. We first outline the implementation of 2D cylindrical geometry in the unsplit MHD solver in FLASH and present results of verification tests. We then describe the results of benchmark 2D cylindrical MHD simulations of the LULI experiments using FLASH that explore the impact of external fields along with the possibility of magnetic field amplification by turbulence that is associated with the shock waves and that is induced by a grid placed in the gas-filled chamber. © 2012 Elsevier B.V.
More details from the publisher
More details