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{Walsh:2020:1741-4326/abab52,
author = {Walsh, CA and Crilly, AJ and Chittenden, JP},
doi = {1741-4326/abab52},
journal = {Nuclear Fusion},
pages = {1--8},
title = {Magnetized directly-driven ICF capsules: increased instability growth from non-uniform laser drive},
url = {http://dx.doi.org/10.1088/1741-4326/abab52},
volume = {60},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Simulations anticipate increased perturbation growth from non-uniform laser heating for magnetized direct-drive implosions. At the capsule pole, where the magnetic field is normal to the ablator surface, the field remains in the conduction zone and suppresses non-radial thermal conduction; in unmagnetized implosions this non-radial heat-flow is crucial in mitigating laser heating imbalances. Single-mode simulations show the magnetic field particularly amplifying short wavelength perturbations, whose behavior is dominated by thermal conduction. The most unstable wavelength can also become shorter. 3D multi-mode simulations of the capsule pole reinforce these findings, with increased perturbation growth anticipated across a wide range of scales. The results indicate that high-gain spherical direct-drive implosions require greater constraints on the laser heating uniformity when magnetized.
AU  - Walsh,CA
AU  - Crilly,AJ
AU  - Chittenden,JP
DO  - 1741-4326/abab52
EP  - 8
PY  - 2020///
SN  - 0029-5515
SP  - 1
TI  - Magnetized directly-driven ICF capsules: increased instability growth from non-uniform laser drive
T2  - Nuclear Fusion
UR  - http://dx.doi.org/10.1088/1741-4326/abab52
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000568351700001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://iopscience.iop.org/article/10.1088/1741-4326/abab52
UR  - http://hdl.handle.net/10044/1/83009
VL  - 60
ER  -
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