Hmmm. There is nothing that says that either the inner or outer grids have to be spherical. Obviously, you get convergence to a point with a spherical geometry and convergence to a line with cylindrical, but fusion can be done either way. Miley's group at U. of Illinois have done some work with cylindrical devices in the pulsed mode if I remember correctly. Anyway, I will be starting my work with cylindrical chambers and inner grids, as that is the geometry that chance has handed to me. I can't wait to see what kind of "star" pattern one gets from an Oscar Meyer wiener-style inner grid, at least for the first go round.... I hope to be in the pump down/back fill region of 0.5 micron or less with an auxiliary electron emitter/grid for the bulk of my work, and I probably won't see anything at those pressures.
Richard Hester
Created on Thursday, December 28, 2000 6:18 PM EDT by Richard L. Hester