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: Re: Amperian force plasma gun
Date: Feb 27, 3:35 am
Poster: Dave Cooper

On Feb 27, 3:35 am, Dave Cooper wrote:

>...that is a lot of electrons get sucked out of the material, leaving it so positively charged it explodes.
Not sure if this is relevant, but there is a condition that occurs in very high current density cathodes called "bleaching".. in which the electrons are drawn away so rapidly as to deplete the region and shut down further cathode emission.

I think the cathode material was LaB6, used as a photo-cathode, at mega amperes /cm^2. As I recall, the cathode material stayed put.

Dave Cooper