Friday 10 Dec 2004
                   2:00-3:00pm
              4101 Etcheverry Hall
         University of California-Berkeley

contact: johnv@eecs.berkeley.edu
seminar list: http://ptsg.eecs.berkeley.edu/~johnv/seminar.html



Progress on a global model for oxygen discharges
A. Minnich (UCB CES)

Continuity and power balance equations can be written for a spatially
averaged model of a plasma discharge with multiple constituents, which
take into consideration the profiles of density and fields by assuming the
profiles and using them to calculate wall loss terms. Collisions are
included by assuming a distribution shape and comuting reaction rate
coefficients as a function of electron temperature. The system becomes a
set of coupled nonlinear ordinary differential equations. The mechanics of
solving this set is discussed, and the challenge of computing the
time-changing electron temperature is discussed.