Search found 4 matches

by aperture_science
Sun Dec 06, 2009 1:22 am
Forum: The Accelerator
Topic: Weekend of 12-3-09 collision events !
Replies: 188
Views: 54698

Re: *** COLLISION ALERT ***

stable beams are..
by aperture_science
Sat Dec 05, 2009 5:26 pm
Forum: The Accelerator
Topic: Weekend of 12-3-09 collision events !
Replies: 188
Views: 54698

Re: *** COLLISION ALERT ***

I thought those two terse log entries I quoted above were indicative of impending collisions - and that it was up to the guys and girls at CMS to write it up with a little more excitement in their voices :D

Thanks for the explanation of the collimators!
by aperture_science
Sat Dec 05, 2009 5:15 pm
Forum: New Users Start Here
Topic: Alice Elog
Replies: 4
Views: 4212

Re: Alice Elog

Harbles, I don't think it's a browser issue - it looks like their security cert is self-signed. 'Modern' browsers are much better in warning you about the potential security issues with that - for example, Firefox says: alice-logbook.cern.ch uses an invalid security certificate. The certificate is n...
by aperture_science
Sat Dec 05, 2009 4:50 pm
Forum: The Accelerator
Topic: Weekend of 12-3-09 collision events !
Replies: 188
Views: 54698

Re: *** COLLISION ALERT ***

Just before the collisions post at CMS (13:10h), the LHC OP log reads

"Adjusted beam separations for colliding beams in all IRs." (Dec 5 12:51h)
"Finished with reference orbit. CMS and ATLAS see triggers." (Dec 5 13:06h)

Later on, the log talks about collimator studies.. what are those?