Thomson scattering in inhomogeneous plasmas: The Role of the Fluctuation-Dissipation Theorem

Abstract A self-consistent kinetic theory of Thomson scattering of an electromagnetic field by a non-uniform plasma is derived. We draw the readers’ attention to the inconsistency in recent results on the Thomson scattering in inhomogeneous plasma, which leads to violation of the Fluctuation-Dissipa...

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Auteur principal:	V. V. Belyi
Format:	article
Langue:	EN
Publié:	Nature Portfolio 2018
Sujets:	Medicine R Science Q
Accès en ligne:	https://doaj.org/article/717310196b834b62954a0755e8b475d8
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spelling	oai:doaj.org-article:717310196b834b62954a0755e8b475d82021-12-02T11:41:14ZThomson scattering in inhomogeneous plasmas: The Role of the Fluctuation-Dissipation Theorem10.1038/s41598-018-25319-62045-2322https://doaj.org/article/717310196b834b62954a0755e8b475d82018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25319-6https://doaj.org/toc/2045-2322Abstract A self-consistent kinetic theory of Thomson scattering of an electromagnetic field by a non-uniform plasma is derived. We draw the readers’ attention to the inconsistency in recent results on the Thomson scattering in inhomogeneous plasma, which leads to violation of the Fluctuation-Dissipation Theorem. We show, that not only the imaginary part, but also the derivatives of the real part of the dielectric susceptibility determine the amplitude and the width of the Thomson scattering spectral lines. As a result of inhomogeneity, these properties become asymmetric with respect to inversion of the sign of the frequency. A method is proposed for measuring local gradients of the electron density with the aid of Thomson scattering. Arising from: P. Kozlowski, et al. Sci. Rep. 6, 24283 (2016); https://doi.org/10.1038/srep24283.V. V. BelyiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-7 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q V. V. Belyi Thomson scattering in inhomogeneous plasmas: The Role of the Fluctuation-Dissipation Theorem
description	Abstract A self-consistent kinetic theory of Thomson scattering of an electromagnetic field by a non-uniform plasma is derived. We draw the readers’ attention to the inconsistency in recent results on the Thomson scattering in inhomogeneous plasma, which leads to violation of the Fluctuation-Dissipation Theorem. We show, that not only the imaginary part, but also the derivatives of the real part of the dielectric susceptibility determine the amplitude and the width of the Thomson scattering spectral lines. As a result of inhomogeneity, these properties become asymmetric with respect to inversion of the sign of the frequency. A method is proposed for measuring local gradients of the electron density with the aid of Thomson scattering. Arising from: P. Kozlowski, et al. Sci. Rep. 6, 24283 (2016); https://doi.org/10.1038/srep24283.
format	article
author	V. V. Belyi
author_facet	V. V. Belyi
author_sort	V. V. Belyi
title	Thomson scattering in inhomogeneous plasmas: The Role of the Fluctuation-Dissipation Theorem
title_short	Thomson scattering in inhomogeneous plasmas: The Role of the Fluctuation-Dissipation Theorem
title_full	Thomson scattering in inhomogeneous plasmas: The Role of the Fluctuation-Dissipation Theorem
title_fullStr	Thomson scattering in inhomogeneous plasmas: The Role of the Fluctuation-Dissipation Theorem
title_full_unstemmed	Thomson scattering in inhomogeneous plasmas: The Role of the Fluctuation-Dissipation Theorem
title_sort	thomson scattering in inhomogeneous plasmas: the role of the fluctuation-dissipation theorem
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/717310196b834b62954a0755e8b475d8
work_keys_str_mv	AT vvbelyi thomsonscatteringininhomogeneousplasmastheroleofthefluctuationdissipationtheorem
_version_	1718395404997885952

Thomson scattering in inhomogeneous plasmas: The Role of the Fluctuation-Dissipation Theorem

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