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Part 1: Document Description
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Citation |
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Title: |
Linear Theory of Electron-Plasma Waves at Arbitrary Collisionality |
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Identification Number: |
doi:10.7910/DVN/LOAT9C |
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Distributor: |
Harvard Dataverse |
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Date of Distribution: |
2018-12-04 |
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Version: |
1 |
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Bibliographic Citation: |
R. Jorge, P. Ricci, S. Brunner, S. Gamba, V. Konovets, N. F. Loureiro, L. M. Perrone, N. Teixeira, 2018, "Linear Theory of Electron-Plasma Waves at Arbitrary Collisionality", https://doi.org/10.7910/DVN/LOAT9C, Harvard Dataverse, V1 |
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Citation |
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Title: |
Linear Theory of Electron-Plasma Waves at Arbitrary Collisionality |
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Identification Number: |
doi:10.7910/DVN/LOAT9C |
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Authoring Entity: |
R. Jorge, P. Ricci, S. Brunner, S. Gamba, V. Konovets, N. F. Loureiro, L. M. Perrone, N. Teixeira |
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Distributor: |
Harvard Dataverse |
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Holdings Information: |
https://doi.org/10.7910/DVN/LOAT9C |
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Study Scope |
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Keywords: |
Physics, Boltzmann equation, collision operators, polynomial expansions, spectra, waves |
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Abstract: |
The dynamics of electron-plasma waves are described at arbitrary collisionality by considering the full Coulomb collision operator. The description is based on a Hermite- Laguerre decomposition of the velocity dependence of the electron distribution function. The damping rate, frequency, and eigenmode spectrum of electron-plasma waves are found as functions of the collision frequency and wavelength. A comparison is made between the collisionless Landau damping limit, the Lenard-Bernstein and Dougherty collision operators, and the electron-ion collision operator, finding large deviations in the damping rates and eigenmode spectra. A purely damped entropy mode, characteristic of a plasma where pitch-angle scattering effects are dominant with respect to collisionless effects, is shown to emerge numerically, and its dispersion relation is analytically derived. It is shown that such a mode is absent when simplified collision operators are used, and that like-particle collisions strongly influence the damping rate of the entropy mode. |
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Notes: |
<a href="http://library.psfc.mit.edu/catalog/reports/2010/18ja/18ja032/abstract.php">PSFC REPORT PSFC/JA-18-32</a><br /><br />N.F. Loureiro was partially funded by the U.S. Department of Energy Grant No. DE-FG02-91ER54109. |
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Methodology and Processing |
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Sources Statement |
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Data Access |
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Notes: |
This dataset is made available without information on how it can be used. You should communicate with the Contact(s) specified before use. |
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Other Study Description Materials |
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Label: |
18ja032_archival_manuscript.pdf |
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Text: | |
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Notes: |
application/pdf |