Date: Around 1993
I recently watched a video on particle accelerators. The video
stated that a "special alloy" was involved with the high-vacuum storage ring.
Can you give me information on the special alloy?
I think the reason they need a special alloy for high vacuum is
that ordinary iron or steel is very porous to some molecules - particularly
hydrogen. Since particle accelerators usually produce small nuclei, like
protons,the problem could be that a steel liner would absorb all this
hydrogen, and let some of it out gradually, and they could never get it all
out without pumping for ages.
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Update: June 2012