jim...@earthlink.net said: > The gas diffusing out through the drilled bolt.. sure it's drilled, but the > conductance is so patheticaly low, you're literally waiting until the gas > molecules happen to randomly bounce their wey up the hole.
I've never worked with vacuum gear. I assume "drilled bolt" refers to a bolt through a drilled hole so there is some slop between the bolt and the hole. Can I use vacuum grease as a seal around the bolt? Or does it outgas too much if you are going for seriously low pressures? Can I use a soft(er) metal washer and mash it to a gas tight fit by tightening the bolt enough? How low a pressure does a H maser need? Where is it relative to say fingerprints outgassing? Is there an easy to understand scale of difficulty? (like dishes rattle for the Richter scale) -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
