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Re: Current Events Discussion
Posted: Sat Aug 07, 2010 10:38 pm
by Harbles
Several of the topics raised in this thread are addressed in this most recent LHC Update of 23 July
http://indico.cern.ch/conferenceDisplay ... fId=101927
Should be another one out in a few days.
Re: Current Events Discussion
Posted: Sat Aug 07, 2010 10:50 pm
by DCWhitworth
4 x 10e30cm-2s-1 luminosity at the start of the current run ! How did that happen ?
Re: Current Events Discussion
Posted: Sun Aug 08, 2010 12:21 am
by oxodoes
AFAIK this was the first time they corrected for chromacity after a ramp ....
Re: Current Events Discussion
Posted: Sun Aug 08, 2010 6:44 am
by PhilG
They are also celebrating 1/pb = 1000/nb of integrated luminosity.
Re: Current Events Discussion
Posted: Sun Aug 08, 2010 4:16 pm
by CharmQuark
WOOOOOOOOOOOHOOOOOOOOOOOOOOO
WAY TO GO GUYS
Re: Current Events Discussion
Posted: Wed Aug 11, 2010 5:18 pm
by jochen
Does anyone know, why the luminosity of alice is so low?
Re: Current Events Discussion
Posted: Wed Aug 11, 2010 8:28 pm
by morgad
Thursday afternoon plan looks interesting on the co-ordination page ...
10 Amps/sec ramp test :-)
Dave
Re: Current Events Discussion
Posted: Wed Aug 11, 2010 9:44 pm
by jmayes
What's the amps/sec rate they use now?
JM
Re: Current Events Discussion
Posted: Wed Aug 11, 2010 9:54 pm
by morgad
2 for ramp, 10 for cycle/rampl down (e.g. no beam)
so they are trying to keep the beam unter control while it is changing 5x faster :-)
I would rather herd cats ...
Dave
Re: Current Events Discussion
Posted: Thu Aug 12, 2010 6:18 am
by chriwi
will save quite some time once it works.
Re: Current Events Discussion
Posted: Fri Aug 13, 2010 2:21 am
by jmayes
Looking forward it, too bad there has to be a ramp down but perhaps it could be made a little faster too. Just don't over do it guys, hate to see another 1 year hold
Things are progressing well, I am always keeping my fingers crossed
Re: Current Events Discussion
Posted: Sun Aug 15, 2010 12:50 am
by CharmQuark
they had a record turnaround time today 3 hours 40 mins between physics runs
Re: Current Events Discussion
Posted: Mon Aug 16, 2010 9:07 am
by Bornerdogge
They're moving to 48 bunches this week!!
Plus, if anyone noticed, the beta* values of the LHC configuration page are now updated live...
The last 10A/s ramp attend was done without problems!
Re: Current Events Discussion
Posted: Mon Aug 16, 2010 1:25 pm
by DCWhitworth
Bornerdogge wrote:They're moving to 48 bunches this week!!
Plus, if anyone noticed, the beta* values of the LHC configuration page are now updated live...
The last 10A/s ramp attend was done without problems!
And they're planning to test bunch trains too.
I love the way more and more bits are falling into place
Re: Current Events Discussion
Posted: Mon Aug 16, 2010 5:20 pm
by CharmQuark