Fusor Forums

There is a good deal available on eBay on current generation Amptek digital pulse processor boards. These are the Amptek DP5/PC5 board combination (see Amptek.com). The DP5 includes an analog prefilter, an ADC, a digital pulse processor and a multichannel analyzer. It is designed to accept a radiati...

You want the knife edges to dig into the copper to make a seal, but you don't have to do it fully the first time. The manufacturers would have you tighten flanges on a new gasket until the flange faces touch, but you can make a good seal with less compression. The key is to tighten sequentially in a...

I typically operate my system at the low end of the 10-7 Torr range and still get 5-6 uses from each gasket by careful tightening.

I agree with Richard on tightening conflat flanges. I’ve been using conflats for nearly fifty years, and early on my frugality led me to squeeze as much life as possible out of the copper gaskets. I typically get 5-6 uses out of a gasket (i.e. opening and resealing). I put a little sticker on each f...

I can see the FAQ’s, but the links to attachments are broken.

I think it’s generally agreed that the fluorinert fluids are environmentally unfriendly, but they are used in such small amounts that it is also generally agreed that they are not a significant problem. I think their astronomical cost will insure that they are never used in sufficient quantity to co...

Behlke (Behlke.com) uses a sealed closed loop fluorinated fluid system to cool and insulate their HV pulse switches. They use a pump which is sold for cooling computer CPU’s. There are a large number of different pumps sold for this purpose largely to the high performance gaming community. This woul...

I tried to upload some short video clips of the plasma tube demonstrations, but the file sizes were too large even for clips of a few seconds.

I admire your drive, but drive must be tempered by reality. I read your link to the source for isotope enriched boron trifluoride. That this material is commercially available is not a surprise, but I would be willing to bet: 1. It will boggle your mind what this material sells for, and 2. Even if y...

Science is iterative. The first tokamaks were small, but they were a quantum leap in confinement at the time. GOLEM/CASTOR/TM-1 has a toroid not much more than a meter diameter. As more was learned about confinement, it was realized that larger and larger machines would be required. The Europeans in...