Comparing Optical Thomson Scattering With Emission Spectroscopy In He Plasmas Induced By Laser Breakdown At 1 Atmosphere


Autoria(s): Nedanovska, E.; Riley, D.; Lewis, C. L. S.; Morgan, T.; Huewel, L.; Nersisyan, G.; Graham, W. G.
Contribuinte(s)

Aggarwal, K

Shearer, F

Data(s)

2012

Resumo

<p>We have carried out optical Thomson scattering measurements from a laser induced breakdown in He at 1 atmosphere. The breakdown was created with a Nd:YAG laser with 9ns pulse duration and 400mJ pulse energy focused into a chamber filled with He. A second harmonic Nd: YAG laser with 9ns pulses and up to 80mJ energy was used to obtain temporally and spatially resolved data on the electron density and temperature. In parallel experiments, we measured the emission of the 447.1nm line from He I. Initial results suggest good agreement between densities inferred but full Abel inversion is needed for conclusive results.</p>

Identificador

http://pure.qub.ac.uk/portal/en/publications/comparing-optical-thomson-scattering-with-emission-spectroscopy-in-he-plasmas-induced-by-laser-breakdown-at-1-atmosphere(fe098e03-5b5a-4b41-b6d5-0e1be0dd3481).html

http://dx.doi.org/10.1063/1.4707851

http://www.scopus.com/inward/record.url?eid=2-s2.0-84862539473&partnerID=8YFLogxK

Idioma(s)

eng

Publicador

AMER INST PHYSICS

Direitos

info:eu-repo/semantics/restrictedAccess

Fonte

Nedanovska , E , Riley , D , Lewis , C L S , Morgan , T , Huewel , L , Nersisyan , G & Graham , W G 2012 , Comparing Optical Thomson Scattering With Emission Spectroscopy In He Plasmas Induced By Laser Breakdown At 1 Atmosphere . in K Aggarwal & F Shearer (eds) , 17TH INTERNATIONAL CONFERENCE ON ATOMIC PROCESSES IN PLASMAS (ICAPIP) . vol. 1438 , AMER INST PHYSICS , MELVILLE , pp. 29-32 , 17th International Conference on Atomic Processes in Plasmas (ICAPiP) , Belfast , United Kingdom , 19-22 July . DOI: 10.1063/1.4707851

Tipo

contributionToPeriodical