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

P McKenna; D A MacLellan; N. M. H. Butler; R J Dance; R J Gray; A P L Robinson; D Neely; M P Desjarlais

doi:10.1088/0741-3335/57/6/064001

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

P McKenna, D A MacLellan, N. M. H. Butler, R J Dance, R J Gray, A P L Robinson, D Neely, M P Desjarlais

Research output: Contribution to journal › Article

3 Citations (Scopus)

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

Language	English
Article number	064001
Number of pages	9
Journal	Plasma Physics and Controlled Fusion
Volume	57
Issue number	6
Early online date	29 Apr 2015
DOIs	10.1088/0741-3335/57/6/064001
Publication status	Published - 30 Jul 2015

Fingerprint

ignition

Ignition

Electron beams

electron beams

scaling

electrical resistivity

Plasma interactions

electrons

Electrons

Lasers

Transport properties

Temperature

laser plasma interactions

Lithium

Fusion reactions

Physics

temperature profiles

Magnetic fields

Silicon

lithium

Keywords

electrical resistivity
mega-Ampere currents
lithium
silicon
fast electron beam

Cite this

McKenna, P., MacLellan, D. A., Butler, N. M. H., Dance, R. J., Gray, R. J., Robinson, A. P. L., ... 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]. https://doi.org/10.1088/0741-3335/57/6/064001

McKenna, P ; MacLellan, D A ; Butler, N. M. H. ; Dance, R J ; Gray, R J ; Robinson, A P L ; Neely, D ; Desjarlais, M P. / Influence of low-temperature resistivity on fast electron transport in solids : scaling to fast ignition electron beam parameters. In: Plasma Physics and Controlled Fusion. 2015 ; Vol. 57, No. 6.

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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",

keywords = "electrical resistivity, mega-Ampere currents, lithium, silicon, fast electron beam",

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McKenna, P, MacLellan, DA, Butler, NMH, Dance, RJ, Gray, RJ, Robinson, APL, Neely, D & Desjarlais, MP 2015, 'Influence of low-temperature resistivity on fast electron transport in solids: scaling to fast ignition electron beam parameters' Plasma Physics and Controlled Fusion, vol. 57, no. 6, 064001. https://doi.org/10.1088/0741-3335/57/6/064001

Influence of low-temperature resistivity on fast electron transport in solids : scaling to fast ignition electron beam parameters. / McKenna, P; MacLellan, D A; Butler, N. M. H.; Dance, R J; Gray, R J; Robinson, A P L; Neely, D; Desjarlais, M P.

In: Plasma Physics and Controlled Fusion, Vol. 57, No. 6, 064001, 30.07.2015.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Influence of low-temperature resistivity on fast electron transport in solids

T2 - Plasma Physics and Controlled Fusion

AU - McKenna, P

AU - MacLellan, D A

AU - Butler, N. M. H.

AU - Dance, R J

AU - Gray, R J

AU - Robinson, A P L

AU - Neely, D

AU - Desjarlais, M P

PY - 2015/7/30

Y1 - 2015/7/30

N2 - 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

AB - 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

KW - electrical resistivity

KW - mega-Ampere currents

KW - lithium

KW - silicon

KW - fast electron beam

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U2 - 10.1088/0741-3335/57/6/064001

DO - 10.1088/0741-3335/57/6/064001

M3 - Article

VL - 57

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion