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Magnetic signatures of radiation-driven double ablation fronts

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Title: Magnetic signatures of radiation-driven double ablation fronts
Authors: Campbell, PT
Walsh, CA
Russell, BK
Chittenden, JP
Crilly, A
Fiksel, G
Nilson, PM
Thomas, AGR
Krushelnick, K
Willingale, L
Item Type: Journal Article
Abstract: In experiments performed with the OMEGA EP laser system, magnetic field generation in double ablation fronts was observed. Proton radiography measured the strength, spatial profile, and temporal dynamics of self-generated magnetic fields as the target material was varied between plastic, aluminum, copper, and gold. Two distinct regions of magnetic field are generated in mid- Z targets—one produced by gradients from electron thermal transport and the second from radiation-driven gradients. Extended magnetohydrodynamic simulations including radiation transport reproduced key aspects of the experiment, including field generation and double ablation front formation.
Issue Date: 28-Sep-2020
Date of Acceptance: 1-Sep-2020
URI: http://hdl.handle.net/10044/1/84124
DOI: 10.1103/PhysRevLett.125.145001
ISSN: 0031-9007
Publisher: American Physical Society
Start Page: 145001 – 1
End Page: 145001 – 6
Journal / Book Title: Physical Review Letters
Volume: 125
Issue: 14
Copyright Statement: © 2020 American Physical Society
Sponsor/Funder: Lawrence Livermore National Laboratory
AWE Plc
Lawrence Livermore National Laboratory
Funder's Grant Number: B618573
30469588
B640100
Keywords: Science & Technology
Physical Sciences
Physics, Multidisciplinary
Physics
FIELDS
GENERATION
FUSION
Science & Technology
Physical Sciences
Physics, Multidisciplinary
Physics
FIELDS
GENERATION
FUSION
General Physics
01 Mathematical Sciences
02 Physical Sciences
09 Engineering
Publication Status: Published
Article Number: ARTN 145001
Online Publication Date: 2020-09-28
Appears in Collections:Physics
Plasma Physics