From: paal@dick.mi.uib.no (Paal Berg)
Newsgroups: sci.physics.plasma
Subject: Modeling a plasma around a probe
Organization: University of Bergen, Norway


I'm trying to find a model for a probe in a plasma consisting of ions and electrons. The probe is held at a stationary potential and I'm interested in the particle trajectories given by electric(E) and magnetic(B) fields. Some facts about the problem:

Spherical Langmuir probe
Two diffent temperatures, one parallel with B and one perpendicular
Cold plasma
The particle density(n) is unknown

If this looks familiar and you have a written code in Fortran, then tell me! One major problem is the temperature. If I'm using a Boltzmann distribution (n proportional to exp(-qp/T), where q is charge, p is potential and T is temperature) what is T? I'm

Literature about solving this numerically is hard to find. If anyone have some suggestions of literature, you can also mail me.


Paal Berg