out-gassing or leakage or other?

Every fusor and fusion system seems to need a vacuum. This area is for detailed discussion of vacuum systems, materials, gauging, etc. related to fusor or fusion research.
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Sven Andersson
Posts: 117
Joined: Mon Dec 02, 2013 4:46 pm
Real name: Sven Andersson

out-gassing or leakage or other?

Post by Sven Andersson »

I pumped to 0.4 Pa with the meter directly connected to the two stage mechanical vacuum pump.

But I pumped to only 100 Pa with a silicone vacuum hose connected to the vacuum meter. And to 40 Pa with a (long) PVC hose. I used vacuum grease.

Is this due to out-gassing or leakage or some effect with mean free path?

S.A.
Sven Andersson
Posts: 117
Joined: Mon Dec 02, 2013 4:46 pm
Real name: Sven Andersson

Re: out-gassing or leakage or other?

Post by Sven Andersson »

I withdraw the question. I posted it instead to the new user chat area!
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