Posted: Wed Jun 30, 2010 3:55 pm
Commie pinko!BenTC wrote: I expect the Red electrons will work better.
a discussion forum for Polywell fusion
https://talk-polywell.org/bb/
Commie pinko!BenTC wrote: I expect the Red electrons will work better.
In that case a B/W TV or computer moniter might be simplier. I'm guessing the focusing electromagnets must be outside the picture tube, if cooling is a concern. That could be handled by attaching the throat of the TV electron gun tubes to the shell of the vacuum vessle and fire the electrons through a port. Then all you have to figure out is how to mount the sawed off tubes with a good vacuum seal. Lots of JB Weld epoxy might do it if you can tolorate the outgasing issues.MSimon wrote:Not so simple. You will get 3 electron guns. Color. And they are designed to be magnetically focused. And you have to cool the coils in a vacuum.Robthebob wrote:Apparently that's good enough. I may go smash up a CRT TV and get one sometime. since these are already focused, that's my job done for me.MSimon wrote:CRTs are in the 10 mA range.
I'd go with the halogen lamps. They will scale better even if the initial work is harder.
Puff gas! Just let a small puff of D into the chamber and let the electrons ionize it. That is what Dr. B. did. I think his puff was released within the MaGrid.Robthebob wrote: Still dont know how im gonna inject ions into the system, i mean i guess i could use a alpha source like Americanium, that's not enough is it?
For illumination the filament needs to be run white HOT. For electron injection I suspect you could run the filament only red hot, for a much longer life. In either case the expected filament life would greatly exceed the run time for an experiment.GIThruster wrote:Still not sure about using a Halogen lamp. Halogen works because it redeposits tungsten back on the electrode as it boils off. That's not gonna happen if you remove the glass and gas, so you'll be cooking away your filament constantly. If you have to replace it, what do you have to gain by using the bulb to begin with?
Why not do what Famulis did to raise money. I can put you in touch with him. I know he will want to help.Robthebob wrote:okay so talked to my boss.
-may have 1k of funding, if im lucky.
-have caps and can use them
-have vac pump and can use them
-need to write up plan
-etc etc.
I was reading the Aus set up, they just used a Cathode ray, if i can find a cathode ray that has beam current of 10mA, i think i will just use that. Still dont know how im gonna inject ions into the system, i mean i guess i could use a alpha source like Americanium, that's not enough is it?
Low material cost and abundant replacements.If you have to replace it, what do you have to gain by using the bulb to begin with?
Which is also why I asked how big your chamber is.Solo wrote:This is why I was asking you what your goal was. Maybe this forum is a good place to do some brainstorming on this line of thought; hit up Marc (the Prometheus guy) and the Auzzies too.
U Wisconsin is the place.KitemanSA wrote:Which is also why I asked how big your chamber is.Solo wrote:This is why I was asking you what your goal was. Maybe this forum is a good place to do some brainstorming on this line of thought; hit up Marc (the Prometheus guy) and the Auzzies too.
I am interested in supporting collage level work to test out certain magnet configurations, but I want the scale to be on par with WB6 or bigger. I am not suggesting recreating WB 7 per se, but I think it might be possible to make some fairly simple cyro-magnets in certain shapes that would answer a LOT of questions.
Interested?