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Dan Eldredge and the cryovac test chamber. One of the
"dogs" has not been clamped over the opening. When vacuum
was applied, the cover pulled down over the chamber enough to loosen
the dogs. This caused the lower dogs to fall and smack against the
support legs, making an enormous sound. For many weeks, this sound
would cause us all to jump, in fear of some catastrophe. But, after
a while and many cycles of the chamber, we learned to relax once the
dogs fell, as that indicated the vacuum pumping was progressing nominally. |
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Roughing the large 6061 aluminum plate that would become
the lower warm bulkhead for Mimir. This lathe was located in the Boston
University Scientific Instrument facility, where almost all the Mimir
fabrication took place. This bulkhead would go on to hold the G10
collar that supports all of the cold mass inside Mimir. The bulkhead
also hosts all the electrical and vacuum feedthroughs to the cold
vacuum volume. |
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