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Physics > Computational Physics

arXiv:1802.01000 (physics)
[Submitted on 3 Feb 2018]

Title:A Software Package for Rigorously Calculating Optical Plasma Spectra and Automatically Rtrieving Plasma Properties

Authors:Xiaofeng Tan
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Abstract:In this article, a software package code named OPSIAL (Optical Plasma Spectral Calculation And Parameters Retrieval) for rigorously calculating optical plasma spectra and for automatically retrieving plasma parameters is presented. OPSIAL calculates the absolute spectral radiance caused by the bound-bound transitions of elemental species in the plasma by rigorously solving the equation of radiative transfer using an ultrafast line-by-line algorithm. OPSIAL supports both the local-thermodynamic-equilibrium (LTE) or partial LTE conditions and takes account of line broadenings due to the Doppler effect and collisions with electrons and other pseudo colliders in the plasma. An algorithm for fully automatically identifying elemental species and retrieving plasma parameters based on observed plasma emission spectra has been implemented into OPSIAL. The structure and theoretical framework of OPSIAL, together with a case study of using OPSIAL to analyze laser-induced breakdown spectral data of the ChemCam instrument onboard the Mars rover Curiosity, are presented.
Comments: 12 pages, 5 figures, 2 tables
Subjects: Computational Physics (physics.comp-ph); Atomic Physics (physics.atom-ph); Data Analysis, Statistics and Probability (physics.data-an); Plasma Physics (physics.plasm-ph)
Cite as: arXiv:1802.01000 [physics.comp-ph]
  (or arXiv:1802.01000v1 [physics.comp-ph] for this version)
  https://doi.org/10.48550/arXiv.1802.01000

Submission history

From: Xiaofeng Tan [view email]
[v1] Sat, 3 Feb 2018 17:16:14 UTC (5,384 KB)
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