Electrostatic Oscillations Observed in Non-Neutral Electron Plasmas Confined in a Magnetic Field Gradient
نویسندگان
چکیده
منابع مشابه
Properties of non-neutral electron plasmas confined with a magnetic mirror field.
A low energy non-neutral electron plasma was confined with a magnetic mirror field and an electrostatic potential to investigate the basic confinement properties of a simple magnetic mirror trap. The mirror ratio of the magnetic field was increased up to 5. As expected the confinement time became longer as a function of the mirror ratio. The axially integrated radial density profiles in equilib...
متن کاملObservations of an ion-driven instability in non-neutral plasmas confined on magnetic surfaces.
The first detailed experimental study of an instability driven by the presence of a finite ion fraction in an electron-rich non-neutral plasma confined on magnetic surfaces is presented. The instability has a poloidal mode number m=1, implying that the parallel force balance of the electron fluid is broken and that the instability involves rotation of the entire plasma, equivalent to ion-resona...
متن کاملElectrostatic Acceleration of Neutral Plasmas - Momentum Transfer through Magnetic Fields
Electrostatic plasma accelerators which avoid the space charge limitations of conventional ion rockets are described. Additional advantages for these devices include moderate requirements on magnetic field strength, and on power level. In cylindrical and annular geometries, neutral plasmas can exhibit axial acceleration under the influence of externally applied axial electrostatic fields in the...
متن کاملStable High Beta Plasmas Confined by a Dipole Magnetic Field
Stable high-beta plasma is created and confined by the magnetic field of a superconducting coil that is suspended within a large vacuum chamber by thin supports. Discharges containing trapped electrons form when microwaves cause strong perpendicular heating at cyclotron resonance. At low gas fueling rates, an instability appears that resonates with the magnetic drifts of fast electrons and caus...
متن کاملRunaway expansion in magnetically confined electron plasmas
Magnetic confinement of neutral plasmas in a tokamak is one of the most promising avenues for generating power via nuclear fusion. Plasma disruption and energy loss, however, continue to cause problems even as larger experimental plants are being built. In particular, cyclical disruption of the plasma’s core electron temperature is a persistent but poorly explained phenomenon. In this paper, I ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plasma and Fusion Research
سال: 2010
ISSN: 1880-6821
DOI: 10.1585/pfr.5.029