Plasmoid density needs to be increased 3000 fold and not 10,000 fold for LPP fusion net energy production
Increasing the density of the plasmoid is the “long pole” in Lawrenceville Plasma Physics fusion tent—what we need to do to get to net energy production. We know we must increase density a long way from our current results. But now it seems the goal post have moved somewhat nearer. New theoretical calculations indicate that an effect that was left out of previous calculation increases the fusion reaction rate at high magnetic fields and thus requires only about one third the plasma density we previously calculated. This reduces the improvement needed in density from about 10,000-fold to about 3,000-fold.
LPP must upgrade the cathode to a single piece of Tungsten to achieve pure high density plasma
LPP’s latest round of experiments have convinced LPP that LPP will not be able to achieve the level of purity in the plasma LPP needs for high density as long as LPP has joints between metal pieces in the cathode.
Even with our very careful use of indium, sufficient contact resistance remains to cause significant vaporization of copper. So, despite the additional expense involved, LPP have decided to upgrade the cathode to a single monolithic piece of tungsten. This single piece will incorporate the cathode plate, the cathode rods and the underlying plate that attaches to the transmission plates that carry the current back to the capacitors. Thus the plate will only have a current connection outside the vacuum chamber. Both our experimental experience and materials theory indicates that vaporization from the tungsten itself should be minimized, and should fall well below the requirements we need. As far as we know, such monolithic construction is new for plasma focus device design.
They will run simulations of different designs to make sure the Tungsten cathode will not be too brittle to take the stresses.
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