I've been rude, again. My apologies. I'll try to be a better person in the future.
Why? A man should be at home in his skin.
First, WELCOME BACK!Indrek wrote: This is actually why I entered my very first question - what is the true lifecycle of electrons. How do they leave the system so that they can avoid this "thermalization" everyone seems to be obsessed about? Now in our pipe dreams they hit the coils and go away before bad things(tm) happen. But coils are protected by a powerful jedi force-shield.
So they thermalize, destroy the effective potential well and no fusion can happen. Maybe there is salvation, but I can't see it.
Sorry for the long comment. I know noone wants to read other's comments and only write their own. I'm guilty of that too.
I like reading the comments of others(!) [despite the erroneous criticism that I don't see other points of view (which is a false axiom as there is only one point of view if I have a point of view! )].Indrek wrote:I know noone wants to read other's comments and only write their own. I'm guilty of that too.
+12kV of electro-static charge?chrismb wrote: Any electrons lost through cusps will [obviously] encourage ambipolar diffusion, whether directly or otherwise lagging behind in their space-charged wake, and once outside the magrid, what possible physics will bring all that back into the magrid, a region of higher magnetic fields??
Once I find some references I'll explain why I am in the non-ambipolar camp. As for what possible physical force that can get the electrons back into the magrid-KitemanSA wrote:+12kV of electro-static charge?chrismb wrote: Any electrons lost through cusps will [obviously] encourage ambipolar diffusion, whether directly or otherwise lagging behind in their space-charged wake, and once outside the magrid, what possible physics will bring all that back into the magrid, a region of higher magnetic fields??
PS: Dr. N. seems to disagree with your "obviously". As he stated, Polywells are quasi-neutral, NOT ambi-polar. Ok, so I emphasized some stuff.
If you play through the geometry with some model calculations, you will see that will hardly make any difference at all.BenTC wrote:To what degree would the positive HV electric field from the coils balance those electrons, rather than needing ions to do it?
Forgive me for asking what may be a completely dumb question, but why does this argument not also rule out fusion in a farnsworth-hirch fusor?Art Carlson wrote: In brief:
As a simple consequence of Coulomb's Law, coupled with an upper limit for the potential and a lower limit for the density, non-neutral structures in a polywell reactor can never be bigger than a few microns.
Art,Art Carlson wrote: In brief:
As a simple consequence of Coulomb's Law, coupled with an upper limit for the potential and a lower limit for the density, non-neutral structures in a polywell reactor can never be bigger than a few microns.
I haven't really been following the discussions as I've been away. And your messages are usually too hard for me to follow as you use too much random ascii-math. I apologize if you've been through this before. If you have perhaps anyone can spot it and let me know.Art Carlson wrote:In brief:
As a simple consequence of Coulomb's Law, coupled with an upper limit for the potential and a lower limit for the density, non-neutral structures in a polywell reactor can never be bigger than a few microns.