Search found 79 matches

by dukwon
Sun Aug 05, 2018 2:53 pm
Forum: The Accelerator
Topic: 2018 Operation
Replies: 69
Views: 5679

Re: 2018 Operation

Level 3 evacuation alarm in all sectors due to high temperature during this fill. Fire brigade says no action required.

I guess you can't escape the heat 100 metres below the surface
by dukwon
Tue Jul 10, 2018 12:29 pm
Forum: The Accelerator
Topic: 2018 Operation
Replies: 69
Views: 5679

Re: 2018 Operation

The high β* run dragged on a bit too long. LHCb is back to the nominal prediction line.
by dukwon
Fri Jul 06, 2018 9:37 pm
Forum: The Accelerator
Topic: 2018 Operation
Replies: 69
Views: 5679

Re: 2018 Operation

Even this morning they were saying it would end today, but they put another fill in.

High β* runs are for elasitc/diffractive collisions. Stuff TOTEM and AFP/ALFA are interested in.
by dukwon
Sat Jun 16, 2018 9:50 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 69
Views: 5679

Re: 2018 Operation

Here's the lumi situation as of the start of MD1:
Lumi2018-model.LHCb.png
Predicted vs actual integrated lumi IP8
Lumi_20180616.png
Predicted vs actual integrated lumi IP1/5
Lumi_20180616.png (92.66 KiB) Viewed 661 times
intLumiRunAll.png
Integrated lumi over each year so far IP8
intLumiRunAll.png (14.78 KiB) Viewed 661 times
IntegratedLumiLHCbTime_Yearly.png
Integrated lumi over each year so far IP1/5
IntegratedLumiLHCbTime_Yearly.png (56.51 KiB) Viewed 661 times
by dukwon
Fri Jun 15, 2018 9:20 am
Forum: The Accelerator
Topic: Start of major civil engineering work for the HL-LHC
Replies: 1
Views: 335

Start of major civil engineering work for the HL-LHC

Press release: https://press.cern/press-releases/2018/06/major-work-starts-boost-luminosity-lhc Press conference (skip to 43:00): https://webcast.web.cern.ch/event/i735865 Background to the HL-LHC: https://press.cern/backgrounders/faq-about-high-luminosity-lhc More on the civil engineering work: htt...
by dukwon
Wed Jun 13, 2018 1:48 pm
Forum: The Accelerator
Topic: 2018 Operation
Replies: 69
Views: 5679

Re: 2018 Operation

Global Post Mortem Event Event Timestamp: 10/06/18 21:39:22.990 Fill Number: 6773 Accelerator / beam mode: PROTON PHYSICS / STABLE BEAMS Energy: 6499200 [MeV] Intensity B1/B2: 14259 / 17073 [e^10 charges] Event Category / Classification: PROGRAMMED_DUMP / MULTIPLE_SYSTEM_DUMP First BIC input Trigge...
by dukwon
Mon Jun 11, 2018 9:08 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 69
Views: 5679

Re: 2018 Operation

21:39 to 23:55 is 2 hours, 16 minutes. I believe the theoretical minimum turnaround time is about 1h45m.
by dukwon
Thu Jun 07, 2018 2:44 pm
Forum: The Accelerator
Topic: 2018 Operation
Replies: 69
Views: 5679

Re: 2018 Operation

8 quenches in S34. 12–15 hours to wait for cryo recovery :(
by dukwon
Thu Jun 07, 2018 9:14 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 69
Views: 5679

Re: 2018 Operation

From what I've heard, it was shut down on purpose to do a special run for the liquid argon calorimeter. I'm not sure I believe that.
by dukwon
Thu Jun 07, 2018 8:52 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 69
Views: 5679

Re: 2018 Operation

ATLAS requested the lower lumi. I'm guessing there's little point stressing the computing resources collecting high-pileup data with the magnet off. I'll try to find out what the problem with the magnet is, although I'm sure mfb will tell us soon enough.
by dukwon
Mon Jun 04, 2018 11:11 am
Forum: New Users Start Here
Topic: Hey all
Replies: 5
Views: 606

Re: Hey all

Welcome!
by dukwon
Mon Jun 04, 2018 11:11 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 69
Views: 5679

Re: 2018 Operation

gruffalo.png
gruffalo.png (168.8 KiB) Viewed 753 times
The gruffalo with his hand on the beam dump switch
by dukwon
Thu May 24, 2018 9:27 am
Forum: Portal link and forum suggestions
Topic: Default stylesheet
Replies: 2
Views: 179

Default stylesheet

I think the "dark and foreboding" default stylesheet is rather off-putting to new users. I humbly suggest switching to "Flat style", which is lighter and looks more modern:

by dukwon
Wed May 23, 2018 6:54 pm
Forum: The Accelerator
Topic: Squeeze during ramp
Replies: 2
Views: 218

Re: Squeeze during ramp