Wednesday 04 May 2005
                   4:00-5:00pm
                  400 Cory Hall
         University of California-Berkeley

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

Computational Mobility Measurements 
A. Minnich (UCB-CES)

Motivated by the need for analytic models for mobility in DC discharges,
computational mobility measurements using XPDP1 were performed for Argon
and Helium. Drift velocity was collected over a wide range of parameters,
including electric field and pressure, and used to calculate mobility. The
resulting measurements were fit using a simple theoretical model. A
pressure scaling is shown to work well, but the curve fit is shown to
perform only marginally, with poor agreement at low fields. Differences in
XPDP1 measurements before and after a bug fix to the collisional model
will also be presented.