jamesr wrote: Basically this give a limit on the current a filament can carry where the radiation pressure outwards balances the pinch force inwards. For deuterium the figure is around 1.6MA.
According to Sing Lee, this limit is due the impedance of the contracting plasma not due radiation pressure.
It can be overcome by increasing the voltage between the cathodes to high values, like above 90KV:
http://www.plasmafocus.net/IPFS/2010 Papers/2010 Pp2 IJER.doc
The Las Vegas DPF can do that:
https://focusfusion.org/index.php/site/article/july_switch_update/
Unfortunately, LPPX cannot…
