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  • Threshold of Parametric Instability in the Ionospheric Heating Experiments

    Rights statement: This is an author-created, un-copyedited version of an article accepted for publication/published in Plasma Science and Technology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi:10.1088/2058-6272/aac71d

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Threshold of parametric instability in the ionospheric heating experiments

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Article number115301
<mark>Journal publication date</mark>4/09/2018
<mark>Journal</mark>Plasma Science and Technology
Issue number11
Volume20
Number of pages8
Publication statusPublished
Early online date22/05/18
Original languageEnglish

Abstract

'Many observations in the ionospheric heating experiment, by a powerful high frequency electromagnetic wave with ordinary polarization launched from a ground-based facility, is attributed to parametric instability (PI). In this paper, the general dispersion relation and the threshold of the PI excitation in the heating experiment are derived by considering the inhomogeneous spatial distribution of pump wave field. It is shown that the threshold of PI is influenced by the effective electron and ion collision frequencies and the pump wave frequency. Both collision and Landau damping should be considered in the PI calculation. The derived threshold expression has been used to calculate the required threshold for excitation of PI for several ionospheric conditions during heating experiments conducted employing EISCAT high frequency transmitter in Tromsø, Norway, on 2nd October 1998, 8th November 2001, 19th October 2012 and 7th July 2014. The results indicate that the calculated threshold is in good agreement with the experimental observations. © 2018 Hefei Institutes of Physical Science, Chinese Academy of Sciences and IOP Publishing.

Bibliographic note

This is an author-created, un-copyedited version of an article accepted for publication/published in Plasma Science and Technology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi:10.1088/2058-6272/aac71d