X-ray back-lighter characterization for iron opacity measurements using laser-produced aluminium K-alpha emission

A. K. Rossall, L. M.R. Gartside, S. Chaurasia, S. Tripathi, D. S. Munda, N. K. Gupta, L. J. Dhareshwar, J. Gaffney, S. J. Rose, G. J. Tallents

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Aluminium Kα emission (1.5 keV) produced by an 8 J, 500 ps, Nd:glass laser incident at 45° onto a layered target of 0.8 μm thick aluminium (front side) and 1 μm thick iron (backside) has been used to probe the opacity of iron plasma. Source broadened spectroscopy and continuum emission analysis show that whole beam self-focusing within the aluminium plasma results in a two-temperature spatial distribution. Thermal conduction from the laser-irradiated aluminium into the iron layer, enhanced by the whole beam self-focusing, results in a temperature of ∼10.150 eV in the iron layer. The iron opacity at a photon energy of 1.5 keV is shown to be strongly modified from cold values in agreement with IMP code opacities. Results presented here represent a feasibility study to seed future work using table-top laser systems for plasma opacity experiments.

Original languageEnglish
Article number155403
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume43
Issue number15
DOIs
Publication statusPublished - 20 Jul 2010
Externally publishedYes

Fingerprint

opacity
aluminum
iron
lasers
self focusing
x rays
IMP
glass lasers
seeds
spatial distribution
continuums
conduction
temperature
probes
photons
spectroscopy
energy

Cite this

Rossall, A. K. ; Gartside, L. M.R. ; Chaurasia, S. ; Tripathi, S. ; Munda, D. S. ; Gupta, N. K. ; Dhareshwar, L. J. ; Gaffney, J. ; Rose, S. J. ; Tallents, G. J. / X-ray back-lighter characterization for iron opacity measurements using laser-produced aluminium K-alpha emission. In: Journal of Physics B: Atomic, Molecular and Optical Physics. 2010 ; Vol. 43, No. 15.
@article{0da618dc98ee4e0eb58dc4555f2e44db,
title = "X-ray back-lighter characterization for iron opacity measurements using laser-produced aluminium K-alpha emission",
abstract = "Aluminium Kα emission (1.5 keV) produced by an 8 J, 500 ps, Nd:glass laser incident at 45° onto a layered target of 0.8 μm thick aluminium (front side) and 1 μm thick iron (backside) has been used to probe the opacity of iron plasma. Source broadened spectroscopy and continuum emission analysis show that whole beam self-focusing within the aluminium plasma results in a two-temperature spatial distribution. Thermal conduction from the laser-irradiated aluminium into the iron layer, enhanced by the whole beam self-focusing, results in a temperature of ∼10.150 eV in the iron layer. The iron opacity at a photon energy of 1.5 keV is shown to be strongly modified from cold values in agreement with IMP code opacities. Results presented here represent a feasibility study to seed future work using table-top laser systems for plasma opacity experiments.",
author = "Rossall, {A. K.} and Gartside, {L. M.R.} and S. Chaurasia and S. Tripathi and Munda, {D. S.} and Gupta, {N. K.} and Dhareshwar, {L. J.} and J. Gaffney and Rose, {S. J.} and Tallents, {G. J.}",
year = "2010",
month = "7",
day = "20",
doi = "10.1088/0953-4075/43/15/155403",
language = "English",
volume = "43",
journal = "Journal of Physics B: Atomic, Molecular and Optical Physics",
issn = "0953-4075",
publisher = "IOP Publishing Ltd.",
number = "15",

}

Rossall, AK, Gartside, LMR, Chaurasia, S, Tripathi, S, Munda, DS, Gupta, NK, Dhareshwar, LJ, Gaffney, J, Rose, SJ & Tallents, GJ 2010, 'X-ray back-lighter characterization for iron opacity measurements using laser-produced aluminium K-alpha emission', Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 43, no. 15, 155403. https://doi.org/10.1088/0953-4075/43/15/155403

X-ray back-lighter characterization for iron opacity measurements using laser-produced aluminium K-alpha emission. / Rossall, A. K.; Gartside, L. M.R.; Chaurasia, S.; Tripathi, S.; Munda, D. S.; Gupta, N. K.; Dhareshwar, L. J.; Gaffney, J.; Rose, S. J.; Tallents, G. J.

In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 43, No. 15, 155403, 20.07.2010.

Research output: Contribution to journalArticle

TY - JOUR

T1 - X-ray back-lighter characterization for iron opacity measurements using laser-produced aluminium K-alpha emission

AU - Rossall, A. K.

AU - Gartside, L. M.R.

AU - Chaurasia, S.

AU - Tripathi, S.

AU - Munda, D. S.

AU - Gupta, N. K.

AU - Dhareshwar, L. J.

AU - Gaffney, J.

AU - Rose, S. J.

AU - Tallents, G. J.

PY - 2010/7/20

Y1 - 2010/7/20

N2 - Aluminium Kα emission (1.5 keV) produced by an 8 J, 500 ps, Nd:glass laser incident at 45° onto a layered target of 0.8 μm thick aluminium (front side) and 1 μm thick iron (backside) has been used to probe the opacity of iron plasma. Source broadened spectroscopy and continuum emission analysis show that whole beam self-focusing within the aluminium plasma results in a two-temperature spatial distribution. Thermal conduction from the laser-irradiated aluminium into the iron layer, enhanced by the whole beam self-focusing, results in a temperature of ∼10.150 eV in the iron layer. The iron opacity at a photon energy of 1.5 keV is shown to be strongly modified from cold values in agreement with IMP code opacities. Results presented here represent a feasibility study to seed future work using table-top laser systems for plasma opacity experiments.

AB - Aluminium Kα emission (1.5 keV) produced by an 8 J, 500 ps, Nd:glass laser incident at 45° onto a layered target of 0.8 μm thick aluminium (front side) and 1 μm thick iron (backside) has been used to probe the opacity of iron plasma. Source broadened spectroscopy and continuum emission analysis show that whole beam self-focusing within the aluminium plasma results in a two-temperature spatial distribution. Thermal conduction from the laser-irradiated aluminium into the iron layer, enhanced by the whole beam self-focusing, results in a temperature of ∼10.150 eV in the iron layer. The iron opacity at a photon energy of 1.5 keV is shown to be strongly modified from cold values in agreement with IMP code opacities. Results presented here represent a feasibility study to seed future work using table-top laser systems for plasma opacity experiments.

UR - http://www.scopus.com/inward/record.url?scp=78049352129&partnerID=8YFLogxK

U2 - 10.1088/0953-4075/43/15/155403

DO - 10.1088/0953-4075/43/15/155403

M3 - Article

VL - 43

JO - Journal of Physics B: Atomic, Molecular and Optical Physics

JF - Journal of Physics B: Atomic, Molecular and Optical Physics

SN - 0953-4075

IS - 15

M1 - 155403

ER -