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Re: ** Current Events and discussion **
Posted: Fri Mar 12, 2010 2:34 pm
by LarryS
The "Schedule" shows the first collisions at 450 GeV on Thurs the 18th during the "night" shift. The "night" shift is defined as 23:00 thru 07:00 which therefore is mostly on the 19th.
The have been keeping very close to the schedule even with the surprises.
Re: ** Current Events and discussion **
Posted: Fri Mar 12, 2010 2:39 pm
by LarryS
Slight change to the schedule ... now to start on the Morning of the 19th (07:00 to 15:00).
Re: ** Current Events and discussion **
Posted: Fri Mar 12, 2010 4:25 pm
by Wallmott
LarryS wrote:Slight change to the schedule ... now to start on the Morning of the 19th (07:00 to 15:00).
So when will higher energies collide according to the schedule?
Re: ** Current Events and discussion **
Posted: Fri Mar 12, 2010 4:58 pm
by Stephen
March 30th.
Re: ** Current Events and discussion **
Posted: Fri Mar 12, 2010 5:07 pm
by CharmQuark
My Birthday
Re: ** Current Events and discussion **
Posted: Sat Mar 13, 2010 12:26 pm
by DCWhitworth
emmylou wrote:My Birthday
Oh dear. So we won't be paying attention to the LHC then
Re: ** Current Events and discussion **
Posted: Sat Mar 13, 2010 3:06 pm
by CharmQuark
DCWhitworth wrote:emmylou wrote:My Birthday
Oh dear. So we won't be paying attention to the LHC then
DC
don't think am that special to be honest
Re: ** Current Events and discussion **
Posted: Sat Mar 13, 2010 9:17 pm
by godzila
What's the story with the emergency dump this pm with the 6 10 ^ 10 beam ?
Re: ** Current Events and discussion **
Posted: Thu Mar 18, 2010 9:38 pm
by BillyPilgrim
Machine is at 3.5 Tev without beam!!! Been like that for the last 30 minutees or so. Awesome. Now ramping down. Need to check the logbook to see how everything went.
Re: ** Current Events and discussion **
Posted: Thu Mar 18, 2010 9:53 pm
by Allan
Can someone explain what being at 3.5 TeV without beams means?
What is at 3.5 TeV if there is no beams?
Thank you.
Allan
Re: ** Current Events and discussion **
Posted: Thu Mar 18, 2010 10:13 pm
by llo
Ramp to 3.5TeV with no beams means the magnets were brought up to the required power levels to circulate particles at 3.5 TeV, but there were no particles actually in there circulating. They're taking it a step at a time...
Re: ** Current Events and discussion **
Posted: Thu Mar 18, 2010 10:34 pm
by Allan
Oh
Oh The slow approach not like in December where it appeared that things were taking place at a much more rapid pace. I guess I have time for another beer then.
Allan
Re: ** Current Events and discussion **
Posted: Thu Mar 18, 2010 11:23 pm
by LarryS
Todays two ramps to 3.5 TeV did not go perfectly. According to the LHC / OP LOGS magnet RQTF.A81B1 tripped both times. While it never caused a quench, take a good look at the VISTARS / LHC / STATUS OP page; note that the energy plunges from 3.5 TeV to 0 (zero) on the second trip. However, VISTARS / LHC / Page 1 shows a slow ramp down on power (amperage).
Many "behind the scenes" parameters still need a "bit of fussing." A drop in energy from 3.5 Tev to zero does place a bit of strain on the systems.
Re: ** Current Events and discussion **
Posted: Thu Mar 18, 2010 11:59 pm
by CharmQuark
would rather they took it slow and do things proper
than just rush things
Re: ** Current Events and discussion **
Posted: Fri Mar 19, 2010 12:45 am
by jmayes
Looking like all their ducks are in a row for a 3.5Tev beam tonight! Fingers crossed all goes well, their on count down now!