Two-Stream Instabilities in Guiding-Center Plasmas or Antihydrogen Recombination Schemes
Abstract
Two-stream instabilities are studied analytically in the guiding-center kinetic regime, which is chosen in order that the results may be applied to the mixing of antiprotons and positrons preceding antihydrogen recombination. The guiding-center kinetic description is valid for a range of parameters which includes cases in which magnetic fields are 3 - 5T; temperatures are 4 - 10K; positron densities are 10(exp7) - 10(exp8)/cu cm; and antiproton densities are 10(exp4) - 2 x 10(exp7)/cu cm. The species occupy long, cylindrical columns coaxial with an outer, conducting, cylindrical wall. Plasma column radii are between 0.05 and 0.3 wall radii. A constant, axial, externally generated magnetic field permeates the system. Linear stability of the plasma is studied as a function of the species' temperatures, densities and column radii; the mean antiproton velocity; and wavenumber. Drifting Maxwellian distribution functions are considered.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 24, 2002
- Accession Number
- ADP012496
Entities
People
- Ronald C. Davidson
- Ronald Stowell
Organizations
- Princeton University