Are you in the egroup invited-OP-elogbook-users? Access might have been lost in the move to the new logbook system. Might be worth sending an email.
2022 Operation
Re: 2022 Operation
Re: 2022 Operation
ATLAS news article on today's beam splashes: https://atlas.cern/updates/news/Run3-beams-splash
Re: 2022 Operation
Yes, I think I was. Let's give it a try.Are you in the egroup invited-OP-elogbook-users? Access might have been lost in the move to the new logbook system. Might be worth sending an email.
I know a few people got kicked out because somebody started calling up all these people, so I can't blame them.
We'll see.
- Tau
Re: 2022 Operation
Now fingers crossed for Stable Beams @ 450 GeV on Friday - hopefully with less questionable collisions in IP8 (there was no reliable luminosity signal for IP8 on Wednesday, neither from the BRANs on machine side, nor from LHCb)
Re: 2022 Operation
Yeah we're commissioning a brand new detector (without a hardware trigger) at LHCb. I guess the new lumi monitor (PLUME) isn't ready yet.
First 6.8 TeV stable beams currently scheduled for 5th July (along with a media event, I believe?).
First 6.8 TeV stable beams currently scheduled for 5th July (along with a media event, I believe?).
Re: 2022 Operation
Yes, there will surely be a big media event - by coincidence (or not quite...), the 10th anniversary of the Higgs discovery also falls into the same time period.
And the nominal bunches just made it up the ramp to 6.8 TeV!
And the nominal bunches just made it up the ramp to 6.8 TeV!
Re: 2022 Operation
Stable Beams at 450 GeV!
Also, this times all 4 IPs are really colliding, with LHCb measuring a luminosity signal for the first time with the all-renovated detector!
Also, this times all 4 IPs are really colliding, with LHCb measuring a luminosity signal for the first time with the all-renovated detector!
Re: 2022 Operation
150th LHCC Meeting - OPEN Session
https://indico.cern.ch/event/1156732/
Longer than expected sector 23 training, issue with RF cryogenics and LHCb VELO readiness led to a shift of the schedule of 2.5 weeks: first “official” stable beams on July 5th
Injector beams are in good shape for LHC operation over the summer.
Jmc
https://indico.cern.ch/event/1156732/
Longer than expected sector 23 training, issue with RF cryogenics and LHCb VELO readiness led to a shift of the schedule of 2.5 weeks: first “official” stable beams on July 5th
Injector beams are in good shape for LHC operation over the summer.
Jmc
Re: 2022 Operation
It's the day of the media event!
Here's the YouTube live stream link (starts 16:00 CERN time)
... and we start the day off with 7 magnet quenches (6 dipoles and a quadrupole)
First estimate for cryo recovery is 15:00. The plan was to have beams in "adjust" by 13:00.
Here's the YouTube live stream link (starts 16:00 CERN time)
... and we start the day off with 7 magnet quenches (6 dipoles and a quadrupole)
First estimate for cryo recovery is 15:00. The plan was to have beams in "adjust" by 13:00.
Re: 2022 Operation
That was definitely not the best moment to get a training quench, but we all know Murphy's law.
In the end, while we used up all the contingency, all went fine. Collisions, Stable Beams, followed by a nice ~8h fill with 3x3 bunches.
LHC is back in physics!
In the end, while we used up all the contingency, all went fine. Collisions, Stable Beams, followed by a nice ~8h fill with 3x3 bunches.
LHC is back in physics!
Re: 2022 Operation
Some photos from the CCC yesterday. Felt great to be so close to the action
Re: 2022 Operation
Feedback from reddit is that there are a few ad-hoc sectors showing higher than expected e-cloud losses, and although scrubbing is having some effect it is not improving as rapidly as hoped.