Search found 101 matches

by dukwon
Tue Jun 22, 2021 1:55 pm
Forum: The Accelerator
Topic: Cooling of last sector started! (About quench training)
Replies: 6
Views: 1054

Re: Cooling of last sector started! (About quench training)

While at least 3 sectors are fully trained to 7 TeV, the target beam energy from the training campaign will be 6.8 TeV. S23 and S78 are just about there (and warm now anyway). S56 is maybe a dozen quenches away. The champagne bottle under summer student temple shall remain corked (if it's still ther...
by dukwon
Fri Jun 18, 2021 9:19 am
Forum: The Accelerator
Topic: Cooling of last sector started! (About quench training)
Replies: 6
Views: 1054

Re: Cooling of last sector started! (About quench training)

Sector 23 also had to be warmed up for a repair (diode replacement). S23 and 78 will be cooled back down over August. The 2-week beam test is scheduled for 18th October
by dukwon
Tue May 18, 2021 12:09 pm
Forum: The Accelerator
Topic: Cooling of last sector started! (About quench training)
Replies: 6
Views: 1054

Re: Cooling of last sector started! (About quench training)

Sector 78 has been warmed back up to allow for a damaged dipole to be repaired/replaced. Luckily the machine schedule is so far ahead of the experiments that at worst it is an O(weeks) delay to the autumn beam tests.
by dukwon
Sun Sep 08, 2019 11:07 am
Forum: The Accelerator
Topic: Schedule for 2020
Replies: 2
Views: 11824

Re: Schedule for 2020

Not sure which long-term schedule you're looking at, but Run 3 has been scheduled to start in 2021 since at least 2015

https://lhc-commissioning.web.cern.ch/l ... g-term.htm

The schedule for LS2 (as of Chamonix 2018) is here:
FjdbJG5.png
by dukwon
Fri Jun 21, 2019 8:38 am
Forum: The Accelerator
Topic: The ULO
Replies: 1
Views: 10117

The ULO

For those unaware, ever since the start of Run 2 there has been an object lying on the bottom of the beam pipe in sector 81. It was detected in aperture scans and nicknamed the "Unidentified Lying Object" (ULO). There was some discussion here when it was first detected: http://www.lhcportal.com/Foru...
by dukwon
Wed Feb 13, 2019 7:27 am
Forum: ATLAS
Topic: 35c3 talk: "Conquering Large Numbers at the LHC"
Replies: 1
Views: 18671

35c3 talk: "Conquering Large Numbers at the LHC"

ATLAS physicists talk about data acquisition, processing and analysis to an audience of non-physicists. Much of what they say applies to other collider experiments, too.

https://media.ccc.de/v/35c3-9851-conque ... at_the_lhc
by dukwon
Tue Feb 12, 2019 1:46 pm
Forum: The Accelerator
Topic: 9th LHC Operations Evian Workshop
Replies: 0
Views: 13980

9th LHC Operations Evian Workshop

by dukwon
Tue Jan 15, 2019 5:40 pm
Forum: Off topic
Topic: FCC CDR released
Replies: 3
Views: 8348

Re: FCC CDR released

Diagram of the location and local rock types:
by dukwon
Tue Jan 15, 2019 3:47 pm
Forum: Off topic
Topic: FCC CDR released
Replies: 3
Views: 8348

FCC CDR released

by dukwon
Tue Dec 04, 2018 9:14 am
Forum: The Accelerator
Topic: LS2 and looking ahead to Run 3
Replies: 5
Views: 10058

Re: LS2 and looking ahead to Run 3

First night of LS2, violent thunderstorm caused extensive power cuts. The fire brigade had a busy night.
by dukwon
Mon Dec 03, 2018 6:53 am
Forum: The Accelerator
Topic: LS2 and looking ahead to Run 3
Replies: 5
Views: 10058

Re: LS2 and looking ahead to Run 3

Screenshot from 2018-12-03 07-52-39.png
Screenshot from 2018-12-03 07-52-39.png (2.84 KiB) Viewed 9587 times
by dukwon
Mon Dec 03, 2018 6:06 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 78069

Re: 2018 Operation

Screenshot from 2018-12-03 07-05-49.png
by dukwon
Sun Dec 02, 2018 4:12 pm
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 78069

Re: 2018 Operation

That's it. With the beam dump just now, we are done with Stable Beams for Run 2. Now we have some MDs overnight and Run 2 will be completely over at 6am.
by dukwon
Fri Nov 30, 2018 7:57 pm
Forum: Off topic
Topic: you know the RHIC
Replies: 2
Views: 7365

Re: you know the RHIC

I believe the absolute maximum beam energy is 255 Z GeV where Z is charge of the ion (atomic number for fully ionised nuclei). "Full energy" is 100 GeV per nucleon, but bear in mind Z/A < 1/2 for almost all nuclides.