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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Autor principal: V. V. Belyi
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Lenguaje:EN
Publicado: Nature Portfolio 2018
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Acceso en línea: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
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Science
Q
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Science
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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
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