Talk-Polywell.org

The baseline number (assuming Maxwellian distributions) for P_fusion/P_Bremsstrahlung is 0.57. ... For p-B11, to keep P_brem/P_fus < 0.5, you need P_recirc/P_fus > 42. Let those number sink in. When I see them, I become faint of heart and go running for D-T, or solar power, or freezing in the dark ...

The setup is such that straight edges just show the simulation area. My rounded cubical grid is aligned such that two of its edges go across x axis, and two go across z axis. So the picture you see along x and z is edge-to-edge. The y axis goes through the middle of top/bottom faces. This perhaps is...

Here my estimation for this aspect. If the wire has tensile strength 1 Gpa, the arc segment can withstand around 6 Gpa radial pressure. ... Is it too small plasma pressure to be in the 0.1 GPa - 1 GPa range? Sorry, I forgot to divide by 100 for the radial dimension of the 1cm2 wire. So the estimati...

The most obvious is that your coils won't make a polywell. As has been pointed out by others, the particular configuration would not work. I attach here the drawing of the grid with, current flows shown. The incoming current on thick input is 3 times the incoming current on thinner inputs. Actually...

The largest effort of plasma simulation computer code that I am aware of is the Calvi project, done by some collaborating French research institutions. Some results can be downloaded here: http://gforge.inria.fr/docman/index.php?group_id=828&selected_doc_group_id=1575&language_id=1 I think it would ...

Much of the motivation for polywell fusion research seems to stem from Dr Bussard's emphasis on developing the technology into powerplants first, and into space propulsion later. He specifically referred to 'saving the world', so that polywell fusion reactors would avert an upcoming energy crisis. I...

A nice event presenting the 'National Ignition Facility', for laser-ignited fusion: http://www.youtube.com/watch?v=ZUvG2Sv1dMY The first half is general knowledge about energy, co2, ... The second half introduces the actual project. They apparently got massive funding, even though it is expected fro...

This seems to be the flow of logic here. After being gently shoved by Rick Nebel, I made quantitative predictions based on my model. Where are the quantitative results from his lab to compare them with? ("seems to work" isn't a lot to go on.) Heck, maybe they even agree. As far as I was reading, Dr...

It is interesting question to compare U-238 fueled fission with Thorium-fueled fission. The choice of proper fuel-cycle is a multi-dimensional problem: 1. Which fuel can be produced cheaper? Today U-238 would be the winner, as there are massive stockpiles of 'depleted uranium', and no established mi...

Allocating resources to polywell / thorium fuel research described in my book is urgent - so that there would be no eventual energy scarcity and no panic. I think my opinion is just the same as what you have in your signature. :) When you talk to scientists, there is no need to convey a sense of urg...

Here is the link through which you may access the ebook I recently wrote, which describes the upcoming problem of energy scarcity, and the possible solution: http://www.broadbit.net/energy Over the perspective of a few decades, our quality of life is effected mostly by the way that this energy secur...

hanelyp, I have addressed the issue of square face centers above, it is the question of particle flow along axes. These are the field lines along x-axis: http://www.broadbit.net/download/polywell/Spherical-design-B-field-near-X-axis.png While the magnitude of field is zero at the exactly the axis, I...

KitemanSA: I understand the arcing problem to be created by those electrons, which have less energy than MaGrid voltage, but are outside the wiffle-ball trap. There are excess electrons in the system, so I am not sure what you men by excess ions. In any case, if an ion gets outside the magrid, it is...

Art: OK, I realize I was looking the wrong way at the issue of beating Bremsstrahlung. For a given mix of ions, according to Bussard calculations, the higher the potential, the better the fusion/brems energy ratio. The challenge of WB-6/7 design is that plasma density must be decreased as grid poten...

The Yoshikawa paper claims that inertial confinement fusion rate can be n^3, citing reference [11]. See figure 6:
http://wwwsoc.nii.ac.jp/aesj/division/f ... hikawa.pdf

Of course this is still speculative until that claim is more thoroughly verified.