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Self-consistent particle-in-cell modelling of short pulse absorption and transport for high energy density physics experiments

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Ramsay, M. G., Arber, T. D. and Sircombe, Nathan John (2016) Self-consistent particle-in-cell modelling of short pulse absorption and transport for high energy density physics experiments. Journal of Physics: Conference Series, 688 (1). 012089. doi:10.1088/1742-6596/688/1/012089

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Official URL: http://dx.doi.org/10.1088/1742-6596/688/1/012089

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Abstract

In order for detailed, solid density particle-in-cell (PIC) simulations to run within a reasonable time frame, novel approaches to modelling high density material must be employed. For the purposes of modelling high intensity, short pulse laser-plasma interactions, however, these approaches must be consistent with retaining a full PIC model in the low-density laser interaction region. By replacing the standard Maxwell field solver with an electric field update based on a simplified Ohm's law in regions of high electron density, it is possible to access densities at and above solid without being subject to the standard grid and time step constraints. Such a model has recently been implemented in the PIC code EPOCH. We present the initial results of a detailed two-dimensional simulation performed to compare the adapted version of the code with recent experimental results from the Orion laser facility.

Item Type: Journal Article
Divisions: Faculty of Science > Physics
Journal or Publication Title: Journal of Physics: Conference Series
Publisher: Institute of Physics Publishing Ltd.
ISSN: 1742-6596
Official Date: 2016
Dates:
DateEvent
2016Published
Volume: 688
Number: 1
Article Number: 012089
DOI: 10.1088/1742-6596/688/1/012089
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access

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