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Electrostatic self-plugging of a picket fence cusped magnetic field

1979; AIP Publishing; Volume: 22; Issue: 1 Linguagem: Inglês

10.1063/1.862450

2163-4998

N. Hershkowitz, John Smith, Hideo Kozima,

Atomic and Molecular Physics

Emissive Langmuir probes are used to map the plasma potential in the neighborhood of a picket fence cusped magnetic field. Positive potential ’’islands’’ are found in front of the picket fence conductors showing ion confinement by electrostatic self-plugging of the cusp leaks. This mechanism results in channels whose widths are the order of the hybrid cusp leak widths recently reported.