## Search found 113 matches

Fri Apr 02, 2010 12:03 pm
Forum: Theory
Topic: Significance of Electron Recirculation Revisited
Replies: 135
Views: 53617
I took B = 10 T (oops, I think I said I took 1 T), so the magnetic pressure is B^2/2mu_0 = (10)^2/(2*4*pi*1e-7) = 3.98e7 Pa (or 40 atm). (I apologize for the ASCII math, but (a) I don't know a better way to do it, and (b) as long as I am only doing four function arithmetic plus an occasional sqrt, ...
Fri Apr 02, 2010 11:30 am
Forum: Theory
Topic: Significance of Electron Recirculation Revisited
Replies: 135
Views: 53617
I've had my coffee now, let's give it a crack. In brief: As a simple consequence of Coulomb's Law, coupled with an upper limit for the potential and a lower limit for the density, non-neutral structures in a polywell reactor can never be bigger than a few microns. ... What you are saying is basical...
Thu Apr 01, 2010 8:56 pm
Forum: Theory
Topic: Significance of Electron Recirculation Revisited
Replies: 135
Views: 53617
In brief: As a simple consequence of Coulomb's Law, coupled with an upper limit for the potential and a lower limit for the density, non-neutral structures in a polywell reactor can never be bigger than a few microns. I haven't really been following the discussions as I've been away. And your messa...
Wed Mar 31, 2010 6:10 pm
Forum: Theory
Topic: Significance of Electron Recirculation Revisited
Replies: 135
Views: 53617
I've been rude, again. My apologies. I'll try to be a better person in the future. About the third way to calculate the number of electrons in the system. Enter electrostatics. Actually. I have already done all the work we need years ago, so all we need is to get results from http://www.mare.ee/indr...
Mon Mar 29, 2010 10:41 pm
Forum: Theory
Topic: Significance of Electron Recirculation Revisited
Replies: 135
Views: 53617
Seems noone volunteered. Big surprise there, huh. Here's the basic calculation from the image coil theory. http://www.mare.ee/indrek/ephi/tmp/image-coil-charge-deriv.pdf I got 6.4e16. This is the lower bound. And assuming smaller energies, bigger ball - you can get that number slightly bigger. Now D...
Mon Mar 29, 2010 1:01 am
Forum: Theory
Topic: Significance of Electron Recirculation Revisited
Replies: 135
Views: 53617
I posit that the WB is mainly generated by electrons (B is proportional to speed (v) of particles, v of ions is much smaller than that of electrons, say 60x for deuterons). Ions are in there but don't really take significant part in forming the countering magnetic fields. Actually. If you run the nu...
Sun Mar 28, 2010 10:15 pm
Forum: Theory
Topic: Significance of Electron Recirculation Revisited
Replies: 135
Views: 53617
Nothing as complicated to be worthy of e-mail. I assume the image coils produce a "perfect" wiffleball. Most of the counter-field is being produced by electrons. We know how much current is needed assuming some arbitrary ball size (which we think is reasonable). We can assume some sane distribution ...
Sun Mar 28, 2010 7:13 pm
Forum: Theory
Topic: Significance of Electron Recirculation Revisited
Replies: 135
Views: 53617
Please define electron lifetime. Where do they come from. Where and how do they live. And where do they go at the end of this lifetime so that they avoid this thermalization you speak off. Also based on lifetime and influx you should be able to calculate how many at any given moment are living insid...
Fri Mar 26, 2010 12:19 am
Forum: Theory
Topic: Modeling Polywell
Replies: 44
Views: 9752
Lol
Tue Jun 09, 2009 11:15 pm
Forum: Design
Topic: Numerical Simulation of a Polywell
Replies: 41
Views: 21581
Hello BenTC. This is more into quantum mechanics than what we're interested in. Our particles are zooming so fast around that we can pretty much ignore quantum mechanics. Do you know why electrons don't fall into the nucleus of the atom but stay at some distance off and at fixed energy levels formin...
Fri Mar 20, 2009 1:19 am
Forum: Theory
Topic: The Beginnings of a F.A.Q.
Replies: 24
Views: 8327
Oh great. Polywell should fit right in between the perpetual motion machines and the wind turbine that runs even when there is no wind. Oh, wait. You are absolutely right. I need to keep an open mind. quote: If this turns out to be an actually-working design, it could provide the planet with great h...
Thu Mar 19, 2009 3:05 pm
Forum: Theory
Topic: The Beginnings of a F.A.Q.
Replies: 24
Views: 8327
If you insist on being spoonfed. Go to google and type in "free wiki". You'll find a 100 different services that offer it for free. One thing though: go with one that supports latex style math equations. That's a critical issue. Now getting an equivalent of say http://www.talk-polywell.org/wiki/ wou...
Wed Mar 18, 2009 10:45 pm
Forum: Theory
Topic: The Beginnings of a F.A.Q.
Replies: 24
Views: 8327
The most important thing about a FAQ is writing it. Not discussing it.

Few men of action left on these forums. Only lots of old frail men engaged in endless mental masturbation.

Sorry. I got jolted again today. Living out my frustration here. Bad Indrek.
Tue Jan 06, 2009 9:56 am
Forum: Theory
Topic: Electron interactions with the magnetic field
Replies: 56
Views: 13072
FYI. I once calculated the force on a coil at: http://www.mare.ee/indrek/ephi/force/ I revisited this idea now, added the image coils, and cast it into a simple octave script. This can be found in: http://www.mare.ee/indrek/octave/ov-0.4.zip Another two hours wasted :) The numbers agree with my old ...
Sun Aug 10, 2008 12:25 am
Forum: Theory
Topic: Possible wiffle-ball analytical solution
Replies: 88
Views: 40565
kcdodd wrote:What are A, R, and S?
A is the ball radius. R is the planar radius of the physical coils. S is the spacing between the physical coils. See http://www.mare.ee/indrek/ephi/images.pdf for reference. 'i' indicates inverse/image coils. Field value is in teslas of course.

- Indrek