Low-frequency electrostatic waves in a magnetized, current-free, heavy negative ion plasma
We report experimental observations of a low-frequency (≪ ion gyrofrequency) electrostatic wave mode in a magnetized cylindrical (Q machine) plasma containing positive ions, very few electrons and a relatively large fraction (n−/ne > 103) of heavy negative ions (m−/m+ ≈ 10), and no magnetic field...
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| Veröffentlicht in: | Journal of plasma physics 2013-12, Vol.79 (6), p.1107-1111 |
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| container_end_page | 1111 |
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| container_issue | 6 |
| container_start_page | 1107 |
| container_title | Journal of plasma physics |
| container_volume | 79 |
| creator | KIM, S. H. MERLINO, R. L. MEYER, J. K. ROSENBERG, M. |
| description | We report experimental observations of a low-frequency (≪ ion gyrofrequency) electrostatic wave mode in a magnetized cylindrical (Q machine) plasma containing positive ions, very few electrons and a relatively large fraction (n−/ne > 103) of heavy negative ions (m−/m+ ≈ 10), and no magnetic field-aligned current. The waves propagate nearly perpendicular to B with a multiharmonic spectrum. The maximum wave amplitude coincided spatially with the region of largest density gradient suggesting that the waves were excited by a drift instability in a nearly electron-free positive ion–negative ion plasma |
| doi_str_mv | 10.1017/S0022377813001074 |
| format | Article |
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The maximum wave amplitude coincided spatially with the region of largest density gradient suggesting that the waves were excited by a drift instability in a nearly electron-free positive ion–negative ion plasma</description><subject>Amplitudes</subject><subject>Density gradients</subject><subject>Drift</subject><subject>Electrical engineering</subject><subject>Electrostatic waves</subject><subject>Instability</subject><subject>Ions</subject><subject>Magnetic fields</subject><subject>Plasma physics</subject><subject>Positive ions</subject><subject>Stability</subject><issn>0022-3778</issn><issn>1469-7807</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqFkUtLw0AQgBdRsFZ_gLcFLx4a3VeyyVGKLyh4UC9ewnQzqSnJpu4mLfXXu6E9iCLCMHOY7xuYGULOObvijOvrZ8aEkFqnXDLGmVYHZMRVkkU6ZfqQjIZ2NPSPyYn3S8aYZEKPyNus3USlw48erdlSrNF0rvUddJWhG1ijp5WlQBtYWOyqTywm1PTOoe0GDSf0HWG9pRYXQVkjrVpLVzX4Bk7JUQm1x7N9HZPXu9uX6UM0e7p_nN7MIqNU1kUx6FLEcy4U1yo2CUJcQppIKVCYVMdMYSqRJXMUkpUJGCUKgVlh0hK0jkGOyeVu7sq1YQ3f5U3lDdY1WGx7n_NEc5WFlP6PBi4NJ4yzgF78QJdt72xYJFA6FjKEDhTfUSYczTss85WrGnDbnLN8eEz-6zHBkXsHmrmrigV-G_2n9QVepo6D</recordid><startdate>20131201</startdate><enddate>20131201</enddate><creator>KIM, S. 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| fulltext | fulltext |
| identifier | ISSN: 0022-3778 |
| ispartof | Journal of plasma physics, 2013-12, Vol.79 (6), p.1107-1111 |
| issn | 0022-3778 1469-7807 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1671496718 |
| source | Cambridge University Press Journals Complete |
| subjects | Amplitudes Density gradients Drift Electrical engineering Electrostatic waves Instability Ions Magnetic fields Plasma physics Positive ions Stability |
| title | Low-frequency electrostatic waves in a magnetized, current-free, heavy negative ion plasma |
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