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: Diamond electron emitters
Date: Jul 13, 8:05 am
Poster: Jim Lux
On Jul 13, 8:05 am, Jim Lux wrote:
>> There is a very short article at http://www.lerc.nasa.gov/WWW/RT1995/5000/5620k.htm about CsI doped diamond material
>I am positive it would be just the ticket and readily beat out any other method.
>I will now be facetious and flippant and state that I just know that 1 lb tins of Cesium Iodide doped diamond emitter material is available from any normal hardware store for 98 cents per tin.
I note that they are doing CVD films. Assuming you have an apparatus to do CVD (which could be quite simple, microwave oven and reaction vessels, might work), putting on CsI might not be that tough (I suspect you vaporize both the Cs and the I, and let them react in situ, or do it sequentially). However, the yield on CVD diamond films is pretty poor, even in a purpose built apparatus, and will be even worse in a home built system. Doing CVD is probably just as hard as doing the fusor in the first place. Lots of the same infrastructure: vacuum pumps, a furnace instead of a HV supply, etc.