Search found 219 matches
- Sun Jul 06, 2008 11:27 am
- Forum: Theory
- Topic: The problem with ion convergence
- Replies: 126
- Views: 62205
Pardon me for asking this Art, but if the ions are not oscillating through the centre of the potential well, then they must be orbiting in some elliptical orbit. If they orbit in this fashion, will not their energy of rotation be leeched by the EM field they travel through, causing them to spiral ba...
- Sun Jul 06, 2008 10:47 am
- Forum: Design
- Topic: Whats to be learned by comparing WB-6 and WB-7?
- Replies: 5
- Views: 5941
- Thu Jul 03, 2008 12:28 pm
- Forum: Theory
- Topic: Why is polywell supposed to be better than cusp confinement?
- Replies: 74
- Views: 53167
Hello Carter, I think your logic is sound. Unfortunately when dealing with plasmas, experiment has traditionally guided theory (according to Joe Khachan, the local IEC guy at the Uni. of Sydney). For this reason, we really need experimental measurements of the fields around a working polywell to poi...
- Wed Jul 02, 2008 10:56 am
- Forum: News
- Topic: Roger Fox's 01 July 008 KOS Diary
- Replies: 10
- Views: 7233
- Tue Jul 01, 2008 10:28 am
- Forum: Theory
- Topic: Electron recirculation
- Replies: 106
- Views: 51819
Hello dch24, I liked your post. Good to see you grappling with the ideas. A point. The direct conversion grid is charged to a bit less than +1.8MV, not +5MV. The alphas emerge from the fusion region with about 1.8MeV of kinetic energy, and the DCG provides a field to offer electric braking. When an ...
- Tue Jul 01, 2008 1:15 am
- Forum: Theory
- Topic: A few questions about the polywell design
- Replies: 3
- Views: 4143
- Mon Jun 30, 2008 9:54 pm
- Forum: Theory
- Topic: Carlson and Nebel
- Replies: 108
- Views: 80699
With all due respect to Indrek, we must firstly establish the correctness of this model before making decisions based on it. Indrek's work relies wholly on numerical simulation and not on experimental results, therefore it is within the realm where people remote from the site may do useful checking....
- Mon Jun 30, 2008 9:54 am
- Forum: Theory
- Topic: Carlson and Nebel
- Replies: 108
- Views: 80699
My previous post got me to thinking ... what is the diameter ratio for a polywell coil in an orthogonal setting such that:- the radius from the centre of the coil to the inner coil surface is the same as the distance from the coil outer surface to the corner cusp ? By using such a ratio, the leakage...
- Mon Jun 30, 2008 9:14 am
- Forum: Theory
- Topic: Carlson and Nebel
- Replies: 108
- Views: 80699
Hello Indrek, Thank you for your speedy reply. Much appreciated. I gather from your note, and the rest of this thread that I have been re-reading since I posted the previous comment, that your simulation included the effect of electrons circulating in the polywell; and the result you present is the ...
- Mon Jun 30, 2008 8:51 am
- Forum: Theory
- Topic: Carlson and Nebel
- Replies: 108
- Views: 80699
Hello Indrek, That looks nice. Can you tell me what the axes represent? I assume the "floor" represents x and y as a cross-section through the coil centres and the polywell centre, and I assume the height represents magnetic field (or perhaps electron density? or something else). When you say the "f...
- Sun Jun 29, 2008 11:38 am
- Forum: Networking
- Topic: Lend a hand please
- Replies: 4
- Views: 15834
- Sun Jun 29, 2008 11:32 am
- Forum: Theory
- Topic: Electron recirculation
- Replies: 106
- Views: 51819
Yes Simon you are correct, and a moment's thought should have alerted me to the falsity of my previous statement. A Faraday cage is reciprocal, else a microwave oven would radiate nicely. However, a voltage gradient must still be able to exist within a cage, providing a boundary without making deman...
- Sun Jun 29, 2008 4:23 am
- Forum: Theory
- Topic: Electron recirculation
- Replies: 106
- Views: 51819
But, as has been discussed, there's no net force inside a spherical conductor, so we don't think this will work. I think this is not correct. There ought to be a net force able to exist inside a spherical conductor, where there is a dielectric separating the inside "centre" from the outside sphere....
- Thu Jun 26, 2008 8:43 am
- Forum: Theory
- Topic: Why is polywell supposed to be better than cusp confinement?
- Replies: 74
- Views: 53167
Hello Dr. Carlson, Welcome to Talk-Polywell. I hope your visits here are as productive for you as I am sure they will be for me. If I can, I will uncover the soft underbelly of the polywell concept and eviscerate it. Then you will all thank me kindly for stopping your waste of time, and we will all ...
- Tue Jun 24, 2008 8:42 pm
- Forum: Theory
- Topic: Carlson and Nebel
- Replies: 108
- Views: 80699
Nebel's answers have not changed my mind, but they are interesting enough to keep me talking. I think, however, that http://www.talk-polywell.org/bb/viewforum.php?f=3 is a more appropriate and more convenient forum. Anyone who wants to follow this discussion should move over there. This is great. W...