Search found 163 matches

by dukwon
Tue May 31, 2022 8:34 am
Forum: The Accelerator
Topic: 2022 Operation
Replies: 80
Views: 374476

Re: 2022 Operation

Test collisions with VDM cycle at 6.8 TeV (2 bunches / beam)
by dukwon
Wed May 25, 2022 11:47 am
Forum: The Accelerator
Topic: 2022 Operation
Replies: 80
Views: 374476

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?).
by dukwon
Tue May 24, 2022 8:46 am
Forum: The Accelerator
Topic: 2022 Operation
Replies: 80
Views: 374476

Re: 2022 Operation

:clap:
by dukwon
Thu Apr 28, 2022 2:39 pm
Forum: The Accelerator
Topic: 2022 Operation
Replies: 80
Views: 374476

Re: 2022 Operation

ATLAS news article on today's beam splashes: https://atlas.cern/updates/news/Run3-beams-splash
by dukwon
Tue Apr 26, 2022 3:27 pm
Forum: The Accelerator
Topic: 2022 Operation
Replies: 80
Views: 374476

Re: 2022 Operation

I used to have access to these, but it seems to be blocked. Is this a change of policy that "fans of LHC" can't look in the logbooks anymore? I had so much fun reading these... Are you in the egroup invited-OP-elogbook-users? Access might have been lost in the move to the new logbook system. Might ...
by dukwon
Mon Apr 25, 2022 4:55 pm
Forum: The Accelerator
Topic: 2022 Operation
Replies: 80
Views: 374476

Re: 2022 Operation

by dukwon
Sun Apr 24, 2022 9:45 pm
Forum: The Accelerator
Topic: 2022 Operation
Replies: 80
Views: 374476

Re: 2022 Operation

Had a first attempt at a 6.5 TeV ramp with beam. Dump before reaching 3 TeV due to 2 circuit trips (arc tuning quadrupoles). Cryo lost in S12 after ramp-down (triplet quench). "Expect few hours of recovery."
by dukwon
Fri Apr 22, 2022 10:33 am
Forum: The Accelerator
Topic: 2022 Operation
Replies: 80
Views: 374476

Re: 2022 Operation

by dukwon
Fri Apr 22, 2022 8:21 am
Forum: The Accelerator
Topic: 2022 Operation
Replies: 80
Views: 374476

Re: 2022 Operation

Beam 1 circulating
capture__2022-04-22T10_18_07_by_lhcop.png
by dukwon
Fri Apr 22, 2022 8:06 am
Forum: The Accelerator
Topic: 2022 Operation
Replies: 80
Views: 374476

Re: 2022 Operation

by dukwon
Thu Apr 14, 2022 12:21 pm
Forum: The Accelerator
Topic: 2022 Operation
Replies: 80
Views: 374476

Re: 2022 Operation

Beam operation should commence Friday 22nd and last 2 weeks, until 6th May. Then there will be a 1-week break, in which the second half of the LHCb VELO should be installed.
by dukwon
Wed Apr 13, 2022 5:05 pm
Forum: The Accelerator
Topic: 2022 Operation
Replies: 80
Views: 374476

2022 Operation

The machine mode has changed from "Shutdown" to "Machine checkout", so I suppose it's time to create a thread for 2022 operation. The schedule is a bit up in the air given the cryo problem in the RF system. The commissioning spreadsheet suggests that first beams may come towards the end of next week.
by dukwon
Tue Mar 22, 2022 8:45 am
Forum: The Accelerator
Topic: October 2021 Beam Tests + 2021/22 YETS
Replies: 34
Views: 41651

Re: October 2021 Beam Tests + 2021/22 YETS

Problems with RF cryo. This may push back first beams by a week (TBC), but machine checkout will still go ahead starting Friday.
lhc2.png
by dukwon
Wed Feb 23, 2022 12:31 pm
Forum: The Accelerator
Topic: October 2021 Beam Tests + 2021/22 YETS
Replies: 34
Views: 41651

Re: October 2021 Beam Tests + 2021/22 YETS

A version 1.0 of the 2022 schedule is now publicly available https://edms.cern.ch/ui/file/2664630/1. ... e_v1.0.pdf
by dukwon
Wed Feb 23, 2022 12:21 pm
Forum: The Accelerator
Topic: October 2021 Beam Tests + 2021/22 YETS
Replies: 34
Views: 41651

Re: October 2021 Beam Tests + 2021/22 YETS

All sectors cold, powering tests ongoing. After cavern closure (24th March) Sector 23 needs a new magnet training campaign: ~20 quenches, 2 weeks estimated, then ready for beam injection.