In this space, visitors are invited to post any comments, questions, or skeptical observations about Philo T. Farnsworth's contributions to the field of Nuclear Fusion research.
Subject: Re: Circulation and grid transparency
Date: Nov 02, 05:29 am
Poster: Nathan K.
On Nov 02, 05:29 am, Nathan K. wrote:
The single largest problem with circulation in the fusor is that even at 90% transparency the grid is still to collisional to allow more than maybe 4 or 5 passes of the ion currents without loosing like 10% of the current ions to grid collisions.
You need something like 98% or above grid transparency to increase the circulation significantly. Ok, so I figured scarifies grid life for a highly transparent grid that will be of as low of a cross section as possible.
If you can increase the transparency to 98% you should see higher reaction rates.
Actually since the non-Maxwellian plasma of a fusor does not travel the straightest particle course either the lower cross section of the grid might do the job.
Every pro has a con and in this case one of the cons is that the lower cross section will be more prone to arcing.
I also thought that the grid might be made out of a thin steel wire but for better conductivity you would have to plate it with something very conductive like silver.
While a smaller cross section will increase transparency the physics of the fusor and the lack of a proper grid material will probably prevent any significant reductions of the grid cross section beyond the existing cross sections.
- Re: Circulation and grid transparency - Richard Hull Nov 02, 09:00 am