ok so like a thing i don't understand about polywells is that all i've ever seen of them is just the donut-cube configuration of magnet coils never any ion guns or cusp recirculators can't tell if this is because they're still [redacted] or just haven't had enough published R&D
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that and i am curious how one sustains a non-neutral plasma distribution and still maintains a high enough core fluence to efficiently offset what must be a *fuckload* of bremsstrahlung from being slung through a potential well like that
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this is a thing with fusors: neutrons be damned, they make A Lot of x-rays (from bremsstrahlung, primarily, i think) hot ion/electron collisions against the chamber and grid probably also contribute somewhat to that, but mostly the grid wastes a ton of energy just.. getting hot.
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hence the polywell idea where you replace the grid and its electrostatic potential well with a little cage of magnets that ideally form kind of a wonky isotropic ion trap, and then you blast deuterium ions into the center and hope for the best i think.
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what i don't get is where the bias/acceleration voltages in a polywell go. they're inertial *electrostatic* confinement, right? but, like, also with a magnetic trap in there? but there's just.. ion guns. idgi. is the entire magna-donut-cube the New Gridness how.. how?? ¿how do?
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there's a book on this subject but it's $130
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you can get it prunt out for less than 130USD alomst certainyly
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