On 12/31/2016 04:34 AM, andy pugh wrote: > On 31 December 2016 at 03:07, Gene Heskett <ghesk...@shentel.net> wrote: >> But did they fix the problem? It seems to me that tracking the helium >> level in the system ought to be something a 6th grader watching >> mechanical gauges could do. > Superfluid cryogenic helium might be rather a tricky thing to measure > the level of. > Well, there are ways, usually using self-heating thermistors.
But, the problem was they sprung a leak in a gaseous helium line, and lost thousands of cubic feet of helium, and nothing sounded the alarm until some other system noticed a shortage. I'm sure there were monitoring systems for this, but for some reason, they didn't work. Could have been so stupid as the system had the wrong pager number for the guy on call. I just don't know how it happened, and it is ALL scuttlebutt, as they are too embarrassed to write a paper on it. Jon ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
