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: various instrumentation and parts questions
Date: Jul 03, 11:26 pm
Poster: Pierce Nichols

On Jul 03, 11:26 pm, Pierce Nichols wrote:

I'm close to ready to start turning my ideas into reality. I have some questions about sources of supply and construction of instrumentation.

First: can someone recommend a solid beginner's book on vacuum practice? I have worked in a physics lab on vacuum stuff, and did attempt to learn as much as possible, but it would be nice to have a complete reference.

Second: has anyone built a HV Langmuir probe, and how? Since I plan to go with a magnetized grid EXL machine, it's crucial that I be able to measure the voltage of the inner electron cloud in real time.

Third: how can I build my own HV feedthroughs? They are very expensive, and I'd like to build my own if they are not too difficult to build.

Fourth: can anyone suggest good sources for high-voltage, high-vacuum varnish?

Fifth: this is directed at Rich Hull -- what is the contact info for the place you had spin your hemispheres?

Sixth: this is directed at Gerald Morris -- how did you cast your inner grid? I want to go with a cast grid.