Search found 144 matches
- Thu Oct 02, 2008 5:45 pm
- Forum: News
- Topic: Dr Nebel and Long's current employment status?
- Replies: 17
- Views: 12945
The reason we haven't made any comments is that there isn't anything new to say. We're still waiting. We don't know how long it will take. Understand that the US governments fiscal year ended September 30th. People in the government have beeen busy. This is also an election year, and regardless of h...
- Thu Oct 02, 2008 4:43 pm
- Forum: News
- Topic: ITER vs the Stone Axe
- Replies: 52
- Views: 29060
jmc "And I guarantee you, when another device is developed which is capable of economic fusion, they will utilize heat and fuelling technologies developed for ITER aswell as plasma facing materials and neutron shields developed by this programme." This isn't at all obvious, and I think you're wrong....
- Thu Oct 02, 2008 4:23 pm
- Forum: News
- Topic: Dr Nebel and Long's current employment status?
- Replies: 17
- Views: 12945
- Mon Sep 29, 2008 9:50 pm
- Forum: Theory
- Topic: Questions Once Again
- Replies: 34
- Views: 18186
Art: The idea is pretty simple. You oscillate the amplitude of the virtual cathode at the resonant transit frequency for the desired ion species you want to pump energy into. It selects species by q/m. For a harmonic oscillator potential, it's pretty trivial. It's described by Mathieu equations (dri...
- Mon Sep 29, 2008 5:36 pm
- Forum: Theory
- Topic: Questions Once Again
- Replies: 34
- Views: 18186
- Mon Sep 29, 2008 4:58 pm
- Forum: Theory
- Topic: Questions Once Again
- Replies: 34
- Views: 18186
Art et.al. We haven't been looking at direct conversion schemes. These were built by LLNL for continuum conversion in the 70s for mirrors. My recollection was that they got conversion efficiencies over 50%, but I might be wrong about that. I suspect that Ralph Moir knows the answer to your questions...
- Mon Sep 29, 2008 4:06 pm
- Forum: Theory
- Topic: Questions Once Again
- Replies: 34
- Views: 18186
- Sat Sep 27, 2008 8:55 pm
- Forum: Theory
- Topic: Further 'cheap' tests
- Replies: 15
- Views: 9045
Going smaller to check scaling usually isn't a real good idea. It usually gives you overly optimistic results. The concern is that as you go to higher field and larger size the dominant transport mechanism may change (the fastest mechanism always dominates) so going smaller may mask the limiting mec...
- Fri Sep 26, 2008 4:54 pm
- Forum: Theory
- Topic: Fusors and p-B11
- Replies: 22
- Views: 11852
D-3He has been done in fusors (University of Wisconsin) and you can get grids that will handle high energy. Consequently, P-11B is also probably doable. The best material we have used for grids is a Tungsten-Rhenium alloy. Tungsten works at high temperatures and the Rhenium allows you to weld it wit...
- Thu Sep 25, 2008 10:33 pm
- Forum: General
- Topic: Energy plans
- Replies: 10
- Views: 6865
jmc: Just because Jet hit Q ~ 1 doesn't mean that it is any closer to a practical fusion reactor than the Polywell is. If you want to use that criterion, then Los Alamos beat that a long, long time ago. Furthermore, if you can't make a practical reactor with D-T, then what is the point of the materi...
- Thu Sep 25, 2008 4:14 pm
- Forum: General
- Topic: Energy plans
- Replies: 10
- Views: 6865
Jmc: Two points…. 1. The Tokamak isn’t any more “real” than the Polywell. Both of them produce thermonuclear grade plasmas and neither of them has been made into a reactor. 2. If a Polywell ends up having to be made enormous to beat transport losses, then we need to find a different concept. That’s ...
- Wed Sep 24, 2008 5:17 pm
- Forum: General
- Topic: Energy plans
- Replies: 10
- Views: 6865
- Wed Sep 24, 2008 4:57 pm
- Forum: Design
- Topic: dodecahedron
- Replies: 36
- Views: 22681
- Tue Sep 23, 2008 12:57 am
- Forum: Design
- Topic: dodecahedron
- Replies: 36
- Views: 22681
- Tue Sep 23, 2008 12:41 am
- Forum: News
- Topic: ITER Costs Double
- Replies: 34
- Views: 18639