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: N.K. Fusor 1
Date: Dec 11, 11:04 pm
Poster: Richard Hull

On Dec 11, 11:04 pm, Richard Hull wrote:

>I also have a very nice oil less grease less vacuum vain pump that I believe would make a very good pump for a simply first generation fusor demonstrator.

Hmmmm.... if it is a Gast type graphite vane pump and has a fairly small pump body, (maybe twice the size of your fist),it will not do too well. These rarely go below 100 torr. You need to be in the millitor range.

Have you tried this pump against a thermocouple type vacuum gauge?

The newer oil-less plastic vaned fore pumps are really nice but cost thousands. Even then, they only go to 100 microns (millitorr).

Good luck on your effort.

Richard Hull