Talk-Polywell.org

I've only got a few plots of the "force volume", but it looks like the force field near the cusps and centers of the magnets points towards the center of the fusor for electrons and a "typical" grid at 20kV with 150 amp turns. I'll have to look closer to the coils to see if the v x B dominates - tha...

Outer shell - grounded Decelerator grid - +1.7 MV (roughly) Potential "equalization" grid - grounded Accelerator (mag shielded grid) - +50 to +200 KV (depending) I'm not seeing it. What I see is some fraction of the 3 MeV alphas hitting the equalization grid and frying it. Maybe I'm thick here, but...

Check out Coors ceramics (yes, the same people who make beer!) I've used their stuff in vacuum systems and it holds up well.

Any metal coating will work. Standard processing of Neo's is to add a metal coating (Nickel I think) so that should work fine in a vacuum.

Very nice graphics! I like the results too, approaching the problem from completely different angles we are seeing very similar results. One of the things I'm trying to do is come up with "dimensionless parameters" so I can compute the fields once and then scale everything. That's easy to do with th...

Is there a way I can see magnetic fields easily ? http://www.innovations-report.de/html/berichte/biowissenschaften_chemie/bericht-26132.html Like you can use polarized light to identify glass stress lines is my thinking. Kindof, yes. Check out http://www.magnetostatics.us . They use a ferrofluid as...

No, just motion. The fluid has to move because there is an electric field. The fluid is electrons, so it's frigging obvious when you step back and just look at reality. But when you're up to your eyebrows in math you forget reality! :? Some oscillations must be naturally there too, but I haven't "al...

I've at least proven to myself if not fully to a mathematician that a stable steady state fluid can not exist in an arbitrary static electric and magnetic external field. There's just no way the equations will have a solution that is sensible. So off to the time domain with me. I'm beginning to unde...

I'm pounding thru some math to try to figure out electron density. What a mess!! Even a trivial particle density function with lots of assumptions about no collisions and no field interactions with the particle fluid (fluid!! not even particles!!) is a horrible task. MIghty fun though, so I'll be be...

A little out of date, but might be useful: http://www.eia.doe.gov/oiaf/issues/power_plant.html

It's only 1 octant. You see 1/4 of one coil head on and the two other coils are just lines. If you put one coil on each face of a cube, then slice it in half on each axis (xy, xz, yz planes cutting) you end up with 1/8th of the whole thing. Since it is totally symmetric, there is no need to compute ...

Thanks for the links. It's going to be a while before I get time domain models. Just getting static stuff is slow going.

Here's some plots of the full 6 coil calculation. It is really hard to see, but after a while it defintly makes sense. The first shot is down the cusp corner looking directly at the origin. http://www.eskimo.com/~eresrch/Fusion/cusp.png The second plot is looking directly down the z axis direction o...

I wasn't planning on interpolation, but it's a great idea! The grid is reasonably fine since it is 256x256x256. It takes 200MB to store all Bx, By Bz triplets. Rather than try to follow individual electrons, I'm going to use a plasma/fluid approximation. I'll try different collision terms (starting ...

Well, it turns out that picture told me I screwed up. As I came off of the coil axis and got closer to the coil, the field bent the wrong way! So that's fixed, and I now have the full volume of 1/8th of a cube computed. A view of a single coil looks like: http://www.eskimo.com/~eresrch/Fusion/coil_1...