Influence of low-temperature resistivity on fast electron transport in solids : scaling to fast ignition electron beam parameters

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McKenna, P and MacLellan, D A and Butler, N. M. H. and Dance, R J and Gray, R J and Robinson, A P L and Neely, D and Desjarlais, M P (2015) Influence of low-temperature resistivity on fast electron transport in solids : scaling to fast ignition electron beam parameters. Plasma Physics and Controlled Fusion, 57 (6). 064001. ISSN 0741-3335 (https://doi.org/10.1088/0741-3335/57/6/064001)

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Abstract

The role of low-temperature electrical resistivity in defining the transport properties of mega-Ampere currents of fast (MeV) electrons in solids is investigated using 3D hybrid particle-in-cell (PIC) simulations. By considering resistivity profiles intermediate to the ordered (lattice) and disordered forms of two example materials, lithium and silicon, it is shown that both the magnitude of the resistivity and the shape of the resistivity-temperature profile at low temperatures strongly affect the self-generated resistive magnetic fields and the onset of resistive instabilities, and thus the overall fast electron beam transport pattern. The scaling of these effects to the giga-Ampere electron currents required for the fast ignition scheme for inertial fusion is also explored. This publication relates to the EPSRC funded project Advanced laser-ion acceleration strategies towards next generation healthcare (EP/K022415/1) and the EPSRC funded research fellowship Multi-PetaWatt laser-Plasma Interactions: A New Frontier in Physics (EP/J003832/1). This publication also relates to the dataset 'Data set for McKenna_PPCF_2015': https://pure.strath.ac.uk/portal/en/datasets/data-set-for-mckennappcf2015(19c2dd8f-4b3b-4155-b7eb-1d6c8f2874b9).html

ORCID iDs

McKenna, P ORCID logoORCID: https://orcid.org/0000-0001-8061-7091, MacLellan, D A, Butler, N. M. H. ORCID logoORCID: https://orcid.org/0000-0003-3650-5230, Dance, R J ORCID logoORCID: https://orcid.org/0000-0001-8252-5342, Gray, R J ORCID logoORCID: https://orcid.org/0000-0003-0610-9595, Robinson, A P L, Neely, D and Desjarlais, M P;
  • Item type:Article
    ID code:50862
    Dates:
    Date
    Event
    30 July 2015
    Published
    29 April 2015
    Published Online
    9 December 2014
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:22 Dec 2014 10:21
    Last modified:11 Nov 2024 10:54
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/50862
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