Transverse instability magnetic field thresholds of electron phase-space holes
A detailed comparison is presented of analytical and particle-in-cell simulation investigation of the transverse instability, in two dimensions, of initially one-dimensional electron phase-space hole equilibria. Good quantitative agreement is found between the shift-mode analysis and the simulations...
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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American Physical Society (APS)
2020
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| Online Access: | https://hdl.handle.net/1721.1/124368 |
| _version_ | 1811087578360709120 |
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| author | Hutchinson, Ian Horner |
| author2 | Massachusetts Institute of Technology. Plasma Science and Fusion Center |
| author_facet | Massachusetts Institute of Technology. Plasma Science and Fusion Center Hutchinson, Ian Horner |
| author_sort | Hutchinson, Ian Horner |
| collection | MIT |
| description | A detailed comparison is presented of analytical and particle-in-cell simulation investigation of the transverse instability, in two dimensions, of initially one-dimensional electron phase-space hole equilibria. Good quantitative agreement is found between the shift-mode analysis and the simulations for the magnetic field (B) threshold at which the instability becomes overstable (time oscillatory) and for the real and imaginary parts of the frequency. The simulation B threshold for full stabilization exceeds the predictions of shift-mode analysis by 20-30%, because the mode becomes substantially narrower in spatial extent than a pure shift. This threshold shift is qualitatively explained by the kinematic mechanism of instability. |
| first_indexed | 2024-09-23T13:48:19Z |
| format | Article |
| id | mit-1721.1/124368 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:48:19Z |
| publishDate | 2020 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1243682022-09-28T16:21:02Z Transverse instability magnetic field thresholds of electron phase-space holes Hutchinson, Ian Horner Massachusetts Institute of Technology. Plasma Science and Fusion Center Massachusetts Institute of Technology. Department of Nuclear Science and Engineering A detailed comparison is presented of analytical and particle-in-cell simulation investigation of the transverse instability, in two dimensions, of initially one-dimensional electron phase-space hole equilibria. Good quantitative agreement is found between the shift-mode analysis and the simulations for the magnetic field (B) threshold at which the instability becomes overstable (time oscillatory) and for the real and imaginary parts of the frequency. The simulation B threshold for full stabilization exceeds the predictions of shift-mode analysis by 20-30%, because the mode becomes substantially narrower in spatial extent than a pure shift. This threshold shift is qualitatively explained by the kinematic mechanism of instability. NASA (Grant NNX16AG82G) 2020-03-26T19:40:15Z 2020-03-26T19:40:15Z 2019-05 2019-01 2020-02-27T15:24:37Z Article http://purl.org/eprint/type/JournalArticle 2470-0045 2470-0053 https://hdl.handle.net/1721.1/124368 Hutchinson, I. H. "Transverse instability magnetic field thresholds of electron phase-space holes." Physical Review E 99, 5 (May 2019): 053209 © 2019 American Physical Society en http://dx.doi.org/10.1103/PHYSREVE.99.053209 Physical Review E Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS |
| spellingShingle | Hutchinson, Ian Horner Transverse instability magnetic field thresholds of electron phase-space holes |
| title | Transverse instability magnetic field thresholds of electron phase-space holes |
| title_full | Transverse instability magnetic field thresholds of electron phase-space holes |
| title_fullStr | Transverse instability magnetic field thresholds of electron phase-space holes |
| title_full_unstemmed | Transverse instability magnetic field thresholds of electron phase-space holes |
| title_short | Transverse instability magnetic field thresholds of electron phase-space holes |
| title_sort | transverse instability magnetic field thresholds of electron phase space holes |
| url | https://hdl.handle.net/1721.1/124368 |
| work_keys_str_mv | AT hutchinsonianhorner transverseinstabilitymagneticfieldthresholdsofelectronphasespaceholes |