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That's what I read as well, so without nitrogen, oxygen would not be needed......at least not for preventing nitrogen deposition, also I read before that oxygen itself could be a problem.
I wonder how well things would work in a vacuum vs. an inert backfill.
We could vent the can while listening for the sucking sound to 1st see if it's in a vacuum, also trial and error backfilling could prove successful.
Something that could make sense of the higher energy density aspect and the mention of micro fractures in the structure is moisture, if the facet absorbed any moisture it could be turned to steam faster than it could escape causing tiny damage and/or deposits. I would bet humidity in the air is a big factor in transferring contaminants as well, but the fact that reds and lower power greens last suggests the energy density is a big factor, so a clean inert environment may also be achieved by operating in a vacuum.
I wonder how well things would work in a vacuum vs. an inert backfill.
We could vent the can while listening for the sucking sound to 1st see if it's in a vacuum, also trial and error backfilling could prove successful.
Something that could make sense of the higher energy density aspect and the mention of micro fractures in the structure is moisture, if the facet absorbed any moisture it could be turned to steam faster than it could escape causing tiny damage and/or deposits. I would bet humidity in the air is a big factor in transferring contaminants as well, but the fact that reds and lower power greens last suggests the energy density is a big factor, so a clean inert environment may also be achieved by operating in a vacuum.
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