Fusion Message Board

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: Grid power dissipation
Date: Feb 22, 11:57 am
Poster: Jim Lux

On Feb 22, 11:57 am, Jim Lux wrote:

I was looking through an article in an old IEEE proceedings about high power gridded tubes. They have the same problem of dissipating enough power from the grids to keep them from melting. It has to be essentially radiation cooling to the envelope in these situations (there are also conduction/liquid cooled grids) One technique that was used is sintered tungsten carbide on molybdenum wires. They were talking dissipating 20 Watts/square cm of grid surface area.