Search found 2410 matches

by choff
Mon Jul 21, 2008 7:10 am
Forum: Theory
Topic: Of Line Cusps
Replies: 39
Views: 10527

Art, what would stop either the electrons or the ions that sneak out from sneaking back in on the return path, and the energy lost comes back in with them. You mentioned in another thread that brems has infinite free escape paths from any mag mirror m/c. I assume they never collide with anything or ...
by choff
Mon Jul 21, 2008 5:00 am
Forum: Theory
Topic: Of Line Cusps
Replies: 39
Views: 10527

The larger the tank in relation to the magrid, the less chance of discharge. Assuming the ions get to the wall they could be vacuumed up, filtered out and reused. Build the tank large enough and the ions will turn around and head back to the well. Tom, do you think the well forms from the inside pus...
by choff
Mon Jul 21, 2008 2:39 am
Forum: Theory
Topic: Of Line Cusps
Replies: 39
Views: 10527

If I understand the cusp problem as described by Art, the wiffleball will have an irregular shape and ions can get out the cusps before they fuse. They could be replaced through injection if the loss rate isn't to rapid, unless the cusps do in fact get pinched off sufficiently during the formation. ...
by choff
Mon Jul 21, 2008 12:22 am
Forum: Theory
Topic: Of Line Cusps
Replies: 39
Views: 10527

The f*****g machine

Then there's absolutely no debate the wiffle ball forms from the core and pushes out as opposed to from the cusps pushing inward, naval terminology notwithstanding.
by choff
Sun Jul 20, 2008 6:56 pm
Forum: Theory
Topic: Of Line Cusps
Replies: 39
Views: 10527

My understanding is that electrons enter from the inside of the coils where they have lots of space and exit through the narrow corners. I wonder if its possible for the corners to become so saturated with escaping electrons that at some point additional electrons arriving at the corners start getti...
by choff
Sun Jul 20, 2008 5:30 am
Forum: Theory
Topic: The problem with ion convergence
Replies: 126
Views: 28008

I don't understand the math either. My understanding comes from being exposed briefly to klystrons, magnetrons,and microwave guides during electronics training 35 some years ago, and reading scientific american articles on physics about as long. To my way of thinking electron flows have been precise...
by choff
Sun Jul 13, 2008 9:21 pm
Forum: Theory
Topic: plasma pressure
Replies: 2
Views: 1596

plasma pressure

I recall reading on one of rnebel's posts that the plasma pressure in a fusor was 64500 times higher on the surface than inside a tokamak, and that it got higher as it went in. Also that this made themalization irrelevant. I'm curious how much plasma pressure by itself would be required for fusion a...
by choff
Fri Jul 04, 2008 1:09 am
Forum: General
Topic: Two more months on the contract
Replies: 31
Views: 8600

I think I read one blog that said a breakeven reactor could be built for $10 Million. Depending on what 'nuanced' means maybe they get enough to try for a mimimum sized breakeven machine. With the minimalistic budget and time frame they've been forced to work with some results could be inconclusive ...
by choff
Thu Jun 19, 2008 2:52 am
Forum: Theory
Topic: Carlson and Nebel
Replies: 108
Views: 40222

If the collisions happen at r=0 and everything is directed inward, I know its unlikely but??? Also the heavy material would get reused without taking part in fusion, and if the machine pulsed???
by choff
Thu Jun 19, 2008 2:23 am
Forum: Theory
Topic: Carlson and Nebel
Replies: 108
Views: 40222

I noticed Dr. Nebel mentioned the possibility of injecting fuel pellets into the Polywell, that makes me wonder if a heavy inert catalyst could be tried as well, crushing the fuel together between two molecules of a much heavier element. On that note, maybe that was happening in the fusors back in t...
by choff
Sat Jun 14, 2008 5:13 am
Forum: General
Topic: Science Fiction
Replies: 24
Views: 9492

I once heard a story about ball lightning following a woman into her kitchen, so she hit it with a fly swatter! Knocked it to the floor where it disappeared.
by choff
Fri Jun 13, 2008 6:52 am
Forum: News
Topic: Another one from Alan Boyle
Replies: 52
Views: 19023

Maybe they could get Todd Rider or Richard Hull on the peer review, when the toughest skeptics are convinced then you can pretty much guarantee it works.
by choff
Mon May 19, 2008 2:02 am
Forum: Design
Topic: Fixturing For Welding Large Spheres
Replies: 21
Views: 8164

This might be more of use with small fusor design if any, but could there be any advantage to putting the vacuum chamber and pump inside of an outer vacuum chamber. Use the pump to evacuate the outer chamber half way down, seal it, then pump out the inner chamber into the outer chamber the other hal...
by choff
Tue May 13, 2008 4:18 am
Forum: Theory
Topic: First Wall Problem - Carboran
Replies: 16
Views: 5878

I remember reading a book about the early development of breeder reactors and it mentioned a Zirconium cone underneath the core. The idea was it would disperse any meltdown. On another forum I think I also recall that electrons hitting the screen on a TV cathode ray tube had the equivalent of a 200 ...
by choff
Mon Apr 28, 2008 3:06 am
Forum: Theory
Topic: How long to fully quantify reactions in Polywell
Replies: 4
Views: 1929

My speculative guess if it proves out is ten years to develop a solid working knowledge and at least another ten years for a more detailed understanding. But then new modifications/features will keep coming along that keep research going. If it only partly works research will go on in fits and start...

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