Imperial College London
Alternate

ProfessorStuartMangles

Faculty of Natural Sciences, Department of Physics

Professor of Laser-Plasma Physics
 
 
 
//

Contact

 

+44 (0)20 7594 9643stuart.mangles Website

 
 
//

Location

 

725Blackett LaboratorySouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Hoarty:2019:10.1016/j.hedp.2019.05.003,
author = {Hoarty, DJ and Morton, J and Jeffery, M and Pattison, LK and Wardlow, A and Mangles, SPD and Rose, SJ and Iglesias, C and Opachich, K and Heeter, RF and Perry, TS},
doi = {10.1016/j.hedp.2019.05.003},
journal = {High Energy Density Physics},
pages = {70--76},
title = {A proposal to measure iron opacity at conditions close to the solar convective zone-radiative zone boundary},
url = {http://dx.doi.org/10.1016/j.hedp.2019.05.003},
volume = {32},
year = {2019}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A major problem in stellar modelling is the discrepancy between solar models and helioseismology data in the position of the convective zone-radiative zone boundary in the sun. This could be explained by a large uncertainty in the calculated opacity data and recent experimental data on iron using the Sandia National Laboratory Z facility have shown large differences, up to a factor of 4, between measurement and prediction at plasma conditions close to the convective zone-radiative zone boundary. This paper describes a proposal for a radiative burn-through experiment to be fielded on NIF to observe if a radiation wave transit through a Fe2O3 sample is consistent with the factor of 2-4 change in the iron opacity seen in the Z experiments. A target design and the diagnostic method are described. A detailed radiation-hydrodynamic model has been used to generate synthetic results and explore the sensitivities and experimental accuracy needed for the proposed measurement.
AU  - Hoarty,DJ
AU  - Morton,J
AU  - Jeffery,M
AU  - Pattison,LK
AU  - Wardlow,A
AU  - Mangles,SPD
AU  - Rose,SJ
AU  - Iglesias,C
AU  - Opachich,K
AU  - Heeter,RF
AU  - Perry,TS
DO  - 10.1016/j.hedp.2019.05.003
EP  - 76
PY  - 2019///
SN  - 1574-1818
SP  - 70
TI  - A proposal to measure iron opacity at conditions close to the solar convective zone-radiative zone boundary
T2  - High Energy Density Physics
UR  - http://dx.doi.org/10.1016/j.hedp.2019.05.003
UR  - https://www.sciencedirect.com/science/article/pii/S1574181819300370?via%3Dihub
UR  - http://hdl.handle.net/10044/1/70401
VL  - 32
ER  -
Download