Two-Temperature Equilibration Rate for a Two-Component (e.g., Antihydrogen) Plasma in a Penning Trap

Abstract

An expression for an equilibration time scale is developed that characterizes the rate for a group of (test particles with a Maxwellian velocity distribution but different temperature from that of Maxwellian field particles to relax to the same temperature of the field particles. The expression, which can be used for any value of the Coulomb logarithm, is based on onefold integral expressions for Fokker-Planck velocity-space friction and diffusion coefficients presented elsewhere Y. Chang and C. A. Ordonez, Phys. Rev. E 62, 8564 (2000). A comparison with Spitzer's formula shows a noticeable difference when the Coulomb logarithm has values smaller than 10.

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Document Details

Document Type
Technical Report
Publication Date
Jun 24, 2002
Accession Number
ADP012557

Entities

People

  • Camilo Ordóñez
  • Yongbin Chang

Organizations

  • University of North Texas

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Coefficients
  • Collisions
  • Diffusion
  • Diffusion Coefficient
  • Electronic Mail
  • Equations
  • Friction
  • Integrals
  • Ion Traps
  • Low Temperature
  • Momentum Transfer
  • Particles
  • Technical Information Centers

Readers

  • Mathematics or Statistics
  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Space
  • Space - Hall-Effect Thruster