Search found 2261 matches
- Thu Jan 10, 2008 6:42 pm
- Forum: Theory
- Topic: Virtual Polywell
- Replies: 468
- Views: 195454
I thought you want to have the electrons spend most of their time in the wiffleball. If there's too much leakage, even with recirculation, the ions are going to go somewhere other than towards the middle. You need an electron population inside the magrid to produce the electric potential which conf...
- Wed Jan 09, 2008 4:02 am
- Forum: General
- Topic: make your own vacuum tubes?
- Replies: 2
- Views: 6350
Roll your own cathode tubes
Along the same theme, Roll your own cathode tubes.
via http://blog.makezine.com/archive/2008/0 ... e_tub.html
http://www.sparkbangbuzz.com/crt/crt6.htm
Follow the home links at the bottom for more cool stuff.
via http://blog.makezine.com/archive/2008/0 ... e_tub.html
http://www.sparkbangbuzz.com/crt/crt6.htm
Follow the home links at the bottom for more cool stuff.
- Mon Jan 07, 2008 8:57 pm
- Forum: General
- Topic: make your own vacuum tubes?
- Replies: 2
- Views: 6350
- Mon Dec 31, 2007 12:44 am
- Forum: Design
- Topic: polymer hyperconductors
- Replies: 5
- Views: 9993
- Sun Dec 30, 2007 3:21 am
- Forum: Design
- Topic: polymer hyperconductors
- Replies: 5
- Views: 9993
polymer hyperconductors
Browsing around I spotted http://superconductors.org/ultra.htm which quotes from http://www.ultraconductors.com/primer.html Ultraconductors™ are patented materials being developed for commercial applications. They are made by the sequential processing of amorphous polar dielectric elastomers. They e...
- Thu Dec 20, 2007 6:38 pm
- Forum: Theory
- Topic: Novice configuration WB7-8 questions
- Replies: 9
- Views: 9068
Uniform tessilations on a sphere aren't that hard, within limits. Take a look at http://www.mathpuzzle.com/Fairdice.htm . For a number of those polyhedrons, including the icosahedron, place a magnet ring on a face, field return faces on the vertices, additional cusps on the edges between kissing mag...
- Tue Dec 18, 2007 8:13 pm
- Forum: Theory
- Topic: Novice configuration WB7-8 questions
- Replies: 9
- Views: 9068
Re: Novice configuration WB7-8 questions
... 1. My reading of the text leads me to believe that the hoop/rings will be replaced: "but would not use circular coils, rather they will use coils that follow the polyhedral configuration..." ... -Dave I haven't seen any plans to actually do that, but it might have advantages. It would also be m...
- Tue Dec 18, 2007 7:45 pm
- Forum: Theory
- Topic: Boron, isotopes, 3He
- Replies: 8
- Views: 5892
He3-He3 fusion is a documented aneutronic reaction, but like boron-proton more difficult than the reactions involving deuterium. The boron-proton collisions at an angle would produce few reactions, but still scatter, with all the losses that produces. I agree that boron 10 is probably not a viable f...
- Sun Dec 16, 2007 11:49 pm
- Forum: Theory
- Topic: Boron, isotopes, 3He
- Replies: 8
- Views: 5892
Boron, isotopes, 3He
Several connected mini topics. - Given that boron proton fusion works in the polywell, I'm assuming that 3He-3He fusion will also work. - There have been several mentions of a resonance energy in boron-proton fusion cross section. Very handy given a near mono-energetic plasma, except that collisions...
- Thu Dec 13, 2007 5:33 pm
- Forum: Theory
- Topic: magrid configuration brainstorming
- Replies: 632
- Views: 269119
Gotta remember that those things are going to intercept alpha's like crazy if they aren't in the shadow of the coils, though. It'll be a trade-off, I guess. Note I said screens, not plates. I figure getting alpha interception by the screens down to ~10% or less. Getting alpha interception by the co...
- Tue Dec 11, 2007 5:47 pm
- Forum: Theory
- Topic: magrid configuration brainstorming
- Replies: 632
- Views: 269119
electron reflector screen
Another idea to chew on, a negatively charged reflector screen surrounding the positively charged magrid. Electrons leaking out from the central well would be reflected back by the electric field rather than having to follow a magnetic field line around. Should open up volume for support structure a...
- Sun Dec 09, 2007 9:08 pm
- Forum: Theory
- Topic: POPS Paper
- Replies: 33
- Views: 24159
- Sat Dec 08, 2007 9:23 pm
- Forum: Theory
- Topic: Bismuth as a fusion catalyst? Wikipedia weirdness
- Replies: 13
- Views: 12953
catalyzing the P-P reaction
It might help to understand a bit more about the P-P reaction. The direct P-P reaction is painfully slow because it requires one of the protons to beta decay (weak force, slow) into a neutron while in range of the other proton(strong force). With the introduction of certain isotopes, such as carbon1...
- Fri Dec 07, 2007 6:43 pm
- Forum: Theory
- Topic: magrid configuration brainstorming
- Replies: 632
- Views: 269119
Simon, I'm not trying to say it strictly is a Penning trap, but that it uses features from them, specifically to recapture the electrons that escape through the mirrors. Thanks for the link, it does sound like it connects with my latest design. I wasn't previously aware of plasma drift in mirror mac...
- Thu Dec 06, 2007 7:35 pm
- Forum: Theory
- Topic: magrid configuration brainstorming
- Replies: 632
- Views: 269119
My latest configuration brainstorm
A hybrid polywell simple mirror and tandem Penning trap. http://www.splitreflection.com/~cal/pics/pmirror2.png Electrons emitted just inside negatively charge reflector grids (light blue) at each end rush through opening in positive charged coils (red) and into core towards virtual electrode at the ...