Air-tight vs. Vacuum-tight

When I'm not making YouTube videos, I'm growing crystals in a Molecular Beam Epitaxy vacuum chamber held about 12 orders of magnitude below atmospheric pressure. This is the first in what I'm hoping will be a series of videos featuring the MBE chamber, and this time I'm talking about leaks: how to find the tiniest leaks in the most sensitive systems, and how an MBE can be considered basically a perfect pressure vessel with no air leaking in or out at any time. Let me know in the comments if you have any questions about the MBE I could address in future videos!

Check out the other social media for updates and ramblings:
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#Vacuum #Materials #Engineering

The MBE Lab is part of the Materials Department at UCSB. Filmed with permission.

Extra graphics in this video:
ConFlat flange diagrams from Kurt J. Lesker and Vacs SEV

Music in this video:
I Dunno by grapes is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...)
http://ccmixter.org/files/grapes/16626