NDLI: Electron temperature and density determination in a non-equilibrium laser induced plasma from asymmetric self-reversed emission lines

Content Provider	IEEE Xplore Digital Library
Author	Karabourniotis, D. Ribiere, M. Cheron, B.G.
Copyright Year	2008
Description	Author affiliation: Dept. of Phys., Univ. of Crete, Heraklion (Karabourniotis, D.)
Abstract	Summary form only given. In this paper a diagnostic procedure is described for determining the radial distribution of the electron temperature and density and the excitation temperature of an electron-collision dominated plasma using asymmetric self- reversed emission lines. The proposed method was applied to a plasma plume produced by focusing pulsed laser beams (2 $GW/cm^{2})$ onto a solid aluminum target in a low-pressure environment. The asymmetrically self-reversed resonance line of aluminum 3961.5 Aring, which is emitted from the near the target surface at delay times of ~100 ns after the pulse ending, was used. This line was analyzed and compared with the computed lineshape by solving the equation of radiative transfer taking into account the radial variation of the line width and shift. A Stark-broadened Lorentz line profile is assumed. The theoretical approach is developed on the basis of a recently published work. The continuous radial distribution of the emitting atoms was obtained from Abel inversion of the side-on peak intensity corrected for self-absorption and obtained by direct imaging of the plasma plume. Applying an iterative scheme the electron density and the temperatures as well as their radial distributions are obtained simultaneously for the fist time. Substantial deviation from excitation equilibrium is evident from the large difference determined in the excitation (~8300 K) and electron kinetic (~11800 K) temperatures, while the electron density is ~3.5x $10^{23}$ $m^{-3}.$
Starting Page	1
Ending Page	1
File Size	35655
Page Count	1
File Format	PDF
ISBN	9781424419296
ISSN	07309244
DOI	10.1109/PLASMA.2008.4591073
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-15
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in