Imperial College London
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Jack W. D. Halliday

Faculty of Natural Sciences, Department of Physics

Academic Visitor
 
 
 
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Contact

 

+44 (0)20 7594 6721jack.halliday12 CV

 
 
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Location

 

747Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Suttle:2020:1361-6587/ab5296,
author = {Suttle, LG and Burdiak, GC and Cheung, CL and Clayson, T and Halliday, JWD and Hare, JD and Rusli, S and Russell, DR and Tubman, ER and Ciardi, A and Loureiro, NF and Li, J and Frank, A and Lebedev, S},
doi = {1361-6587/ab5296},
journal = {Plasma Physics and Controlled Fusion},
title = {Interactions of magnetized plasma flows in pulsed-power driven experiments},
url = {http://dx.doi.org/10.1088/1361-6587/ab5296},
volume = {62},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A supersonic flow of magnetized plasma is produced by the application of a 1 MA-peak, 500 ns current pulse to a cylindrical arrangement of parallel wires, known as an inverse wire array. The plasma flow is produced by the J × B acceleration of the ablated wire material, and a magnetic field of several Tesla is embedded at source by the driving current. This setup has been used for a variety of experiments investigating the interactions of magnetized plasma flows. In experiments designed to investigate magnetic reconnection, the collision of counter-streaming flows, carrying oppositely directed magnetic fields, leads to the formation of a reconnection layer in which we observe ions reaching temperatures much greater than predicted by classical heating mechanisms. The breakup of this layer under the plasmoid instability is dependent on the properties of the inflowing plasma, which can be controlled by the choice of the wire array material. In other experiments, magnetized shocks were formed by placing obstacles in the path of the magnetized plasma flow. The pile-up of magnetic flux in front of a conducting obstacle produces a magnetic precursor acting on upstream electrons at the distance of the ion inertial length. This precursor subsequently develops into a steep density transition via ion-electron fluid decoupling. Obstacles which possess a strong private magnetic field affect the upstream flow over a much greater distance, providing an extended bow shock structure. In the region surrounding the obstacle the magnetic pressure holds off the flow, forming a void of plasma material, analogous to the magnetopause around planetary bodies with self-generated magnetic fields.
AU  - Suttle,LG
AU  - Burdiak,GC
AU  - Cheung,CL
AU  - Clayson,T
AU  - Halliday,JWD
AU  - Hare,JD
AU  - Rusli,S
AU  - Russell,DR
AU  - Tubman,ER
AU  - Ciardi,A
AU  - Loureiro,NF
AU  - Li,J
AU  - Frank,A
AU  - Lebedev,S
DO  - 1361-6587/ab5296
PY  - 2020///
SN  - 0741-3335
TI  - Interactions of magnetized plasma flows in pulsed-power driven experiments
T2  - Plasma Physics and Controlled Fusion
UR  - http://dx.doi.org/10.1088/1361-6587/ab5296
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000542645100002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/87578
VL  - 62
ER  -
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