Imperial College London
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Prof. Jeremy Chittenden

Faculty of Natural Sciences, Department of Physics

Professor of Plasma Physics
 
 
 
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Contact

 

+44 (0)20 7594 7654j.chittenden Website

 
 
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Location

 

744Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Appelbe:2021:10.1063/5.0040161,
author = {Appelbe, B and Velikovich, AL and Sherlock, M and Walsh, C and Crilly, A and O', Neill S and Chittenden, J},
doi = {10.1063/5.0040161},
journal = {Physics of Plasmas},
pages = {1--9},
title = {Magnetic field transport in propagating thermonuclear burn},
url = {http://dx.doi.org/10.1063/5.0040161},
volume = {28},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - High energy gain in inertial fusion schemes requires the propagation of a thermonuclear burn wave from hot to cold fuel. We consider the problem of burn propagation when a magnetic field is orthogonal to the burn wave. Using an extended-MHD model with a magnetized α energy transport equation, we find that the magnetic field can reduce the rate of burn propagation by suppressing electron thermal conduction and α particle flux. Magnetic field transport during burn propagation is subject to competing effects: the field can be advected from cold to hot regions by ablation of cold fuel, while the Nernst and α particle flux effects transport the field from hot to cold fuel. These effects, combined with the temperature increase due to burn, can cause the electron Hall parameter to grow rapidly at the burn front. This results in the formation of a self-insulating layer between hot and cold fuel, which reduces electron thermal conductivity and α transport, increases the temperature gradient, and reduces the rate of burn propagation.
AU  - Appelbe,B
AU  - Velikovich,AL
AU  - Sherlock,M
AU  - Walsh,C
AU  - Crilly,A
AU  - O',Neill S
AU  - Chittenden,J
DO  - 10.1063/5.0040161
EP  - 9
PY  - 2021///
SN  - 1070-664X
SP  - 1
TI  - Magnetic field transport in propagating thermonuclear burn
T2  - Physics of Plasmas
UR  - http://dx.doi.org/10.1063/5.0040161
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000631012900002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://aip.scitation.org/doi/10.1063/5.0040161
UR  - http://hdl.handle.net/10044/1/94102
VL  - 28
ER  -
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