Imperial College London
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DrBrianAppelbe

Faculty of Natural Sciences, Department of Physics

Research Fellow
 
 
 
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Contact

 

+44 (0)20 7594 7651b.appelbe07 Website

 
 
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Location

 

740Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Crilly:2021:10.1063/5.0038752,
author = {Crilly, AJ and Appelbe, BD and Mannion, OM and Forrest, CJ and Chittenden, JP},
doi = {10.1063/5.0038752},
journal = {Physics of Plasmas},
pages = {1--9},
title = {The effect of areal density asymmetries on scattered neutron spectra in ICF implosions},
url = {http://dx.doi.org/10.1063/5.0038752},
volume = {28},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Scattered neutron spectroscopy is a diagnostic technique commonly used to measure areal density in inertial confinement fusion experiments. Deleterious areal density asymmetries modify the shape of the scattered neutron spectrum. In this work, a novel analysis is developed, which can be used to fit the shape change. This will allow experimental scattered neutron spectroscopy to directly infer the amplitude and mode of the areal density asymmetries, with little sensitivity to confounding factors that affect other diagnostics for areal density. The model is tested on spectra produced by a neutron transport calculation with both isotropic and anisotropic primary fusion neutron sources. Multiple lines of sight are required to infer the areal density distribution over the whole sphere—we investigate the error propagation and optimal detector arrangement associated with the inference of mode 1 asymmetries.
AU  - Crilly,AJ
AU  - Appelbe,BD
AU  - Mannion,OM
AU  - Forrest,CJ
AU  - Chittenden,JP
DO  - 10.1063/5.0038752
EP  - 9
PY  - 2021///
SN  - 1070-664X
SP  - 1
TI  - The effect of areal density asymmetries on scattered neutron spectra in ICF implosions
T2  - Physics of Plasmas
UR  - http://dx.doi.org/10.1063/5.0038752
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000630906400002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://aip.scitation.org/doi/10.1063/5.0038752
UR  - http://hdl.handle.net/10044/1/94098
VL  - 28
ER  -
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